Dojčinović, Marina

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Authority KeyName Variants
orcid::0000-0002-8158-3468
  • Dojčinović, Marina (62)
  • Dojčinović, Marina B. (3)
Projects
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) Development of new revitalization methodologies for hydro power plant turbine and hydro-mechanical equipment in relation to causes of material degradation
Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine Predefined functional properties polymer composite materials processes and equipment development
Mechanochemistry treatment of low quality mineral raw materials Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200213 (Innovation Center of the Faculty of Mechanical Engineering)
Implementation of new technical, technological and environmental solutions in the mining and metallurgical operations RBB and RBM Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness
New approach in designing materials for energy conversion and energy storage systems Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200108 (University of Kragujevac, Faculty of Mechanical Engineering, Kraljevo) Nanostrukturni neoksidni keramički i karbonski materijali i njihovi kompoziti
Design, development and implementation of the new generation of ADI materials E!6750
EUREKA project / ENZEGG E!6750 - Development of enzyme processes for production of egg white protein hydrolysates Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200012 (Istitute of Material Testing of Serbia - IMS, Belgrade)
Istraživanje savremenih betonskih kompozita na bazi domaćih sirovina, sa posebnim osvrtom na mogućnosti primene betona sa recikliranim agregatom u betonskim konstrukcijama Razvoj komercijalnih proizvoda na bazi sumpornog betona i sumpor-modifikovanog asfalta
The development of casting technologies under the influence of electromagnetic field and technologies of hot plastic forming of 7000 series aluminium alloys for special purposes Research and verification of the multidisciplinary forensic methods in
EUREKA E!6750 The effect of nano- and microconstituents on the synthesis and characteristics of novel composite materials with metal matrix
Directed synthesis, structure and properties of multifunctional materials Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200105 (University of Belgrade, Faculty of Mechanical Engineering)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200156 (University of Novi Sad, Faculty of Technical Science) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200325 (Military Technical Institute - MTI, Belgrade)
Development and application of multifunctional materials using domestic raw materials in upgraded processing lines Sinteza i osobine nanostrukturnih metalnih, intermetalnih i kompozitnih materijala
Proučavanje sinteze, strukture i aktivnosti organskih jedinjenja prirodnog i sintetskog porekla Pressure equipment integrity under simultaneous effect of fatigue loading and temperature

Author's Bibliography

The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash

Savić, Veljko; Dojčinović, Marina; Topalović, Vladimir; Cvijović-Alagić, Ivana; Stojanović, Jovica; Matijašević, Srđan; Grujić, Snežana

(Springer, 2024)

TY  - JOUR
AU  - Savić, Veljko
AU  - Dojčinović, Marina
AU  - Topalović, Vladimir
AU  - Cvijović-Alagić, Ivana
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7090
AB  - The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T = 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass–ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass–ceramic samples was determined using Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass–ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.
PB  - Springer
T2  - International Journal of Environmental Science and Technology
T1  - The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash
DO  - 10.1007/s13762-023-05411-9
ER  - 
@article{
author = "Savić, Veljko and Dojčinović, Marina and Topalović, Vladimir and Cvijović-Alagić, Ivana and Stojanović, Jovica and Matijašević, Srđan and Grujić, Snežana",
year = "2024",
abstract = "The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T = 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass–ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass–ceramic samples was determined using Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass–ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.",
publisher = "Springer",
journal = "International Journal of Environmental Science and Technology",
title = "The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash",
doi = "10.1007/s13762-023-05411-9"
}
Savić, V., Dojčinović, M., Topalović, V., Cvijović-Alagić, I., Stojanović, J., Matijašević, S.,& Grujić, S.. (2024). The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash. in International Journal of Environmental Science and Technology
Springer..
https://doi.org/10.1007/s13762-023-05411-9
Savić V, Dojčinović M, Topalović V, Cvijović-Alagić I, Stojanović J, Matijašević S, Grujić S. The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash. in International Journal of Environmental Science and Technology. 2024;.
doi:10.1007/s13762-023-05411-9 .
Savić, Veljko, Dojčinović, Marina, Topalović, Vladimir, Cvijović-Alagić, Ivana, Stojanović, Jovica, Matijašević, Srđan, Grujić, Snežana, "The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash" in International Journal of Environmental Science and Technology (2024),
https://doi.org/10.1007/s13762-023-05411-9 . .

Optimizacija i unapređenje sinteze i karakterizacije bazaltnog liva

Dojčinović, Marina; Pavlović, Marko; Andrić, Ljubiša; Petrov, Milan; Radulović, Dragan S.

(2023)


                                            

                                            
Dojčinović, M., Pavlović, M., Andrić, L., Petrov, M.,& Radulović, D. S.. (2023). Optimizacija i unapređenje sinteze i karakterizacije bazaltnog liva. .
https://hdl.handle.net/21.15107/rcub_technorep_7010
Dojčinović M, Pavlović M, Andrić L, Petrov M, Radulović DS. Optimizacija i unapređenje sinteze i karakterizacije bazaltnog liva. 2023;.
https://hdl.handle.net/21.15107/rcub_technorep_7010 .
Dojčinović, Marina, Pavlović, Marko, Andrić, Ljubiša, Petrov, Milan, Radulović, Dragan S., "Optimizacija i unapređenje sinteze i karakterizacije bazaltnog liva" (2023),
https://hdl.handle.net/21.15107/rcub_technorep_7010 .

Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy

Dojčinović, Marina; Prokić Cvetković, Radica; Sedmak, Aleksandar; Popović, Olivera; Cvetković, Ivana; Radu, Dorin

(MDPI, 2023)

TY  - JOUR
AU  - Dojčinović, Marina
AU  - Prokić Cvetković, Radica
AU  - Sedmak, Aleksandar
AU  - Popović, Olivera
AU  - Cvetković, Ivana
AU  - Radu, Dorin
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6585
AB  - The effect of the shielding gas arc welding process on the cavitation resistance of the three-component aluminum alloy AlMg4.5Mn and its welded joints was investigated. Welding was performed using the GTAW and GMAW processes in a shielded atmosphere of pure argon. After the welding, metallographic tests were performed, and the hardness distribution in the welded joints was determined. The ultrasonic vibration method was used to evaluate the base metal’s and weld metal’s resistance to cavitation. The change in mass was monitored to determine the cavitation rates. The morphology of the surface damage of the base metal and weld metal due to cavitation was monitored using scanning electron microscopy to explain the effect of the shielding gas arc welding process on their resistance to cavitation.
PB  - MDPI
T2  - Materials
T1  - Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy
IS  - 13
SP  - 4781
VL  - 16
DO  - 10.3390/ma16134781
ER  - 
@article{
author = "Dojčinović, Marina and Prokić Cvetković, Radica and Sedmak, Aleksandar and Popović, Olivera and Cvetković, Ivana and Radu, Dorin",
year = "2023",
abstract = "The effect of the shielding gas arc welding process on the cavitation resistance of the three-component aluminum alloy AlMg4.5Mn and its welded joints was investigated. Welding was performed using the GTAW and GMAW processes in a shielded atmosphere of pure argon. After the welding, metallographic tests were performed, and the hardness distribution in the welded joints was determined. The ultrasonic vibration method was used to evaluate the base metal’s and weld metal’s resistance to cavitation. The change in mass was monitored to determine the cavitation rates. The morphology of the surface damage of the base metal and weld metal due to cavitation was monitored using scanning electron microscopy to explain the effect of the shielding gas arc welding process on their resistance to cavitation.",
publisher = "MDPI",
journal = "Materials",
title = "Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy",
number = "13",
pages = "4781",
volume = "16",
doi = "10.3390/ma16134781"
}
Dojčinović, M., Prokić Cvetković, R., Sedmak, A., Popović, O., Cvetković, I.,& Radu, D.. (2023). Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy. in Materials
MDPI., 16(13), 4781.
https://doi.org/10.3390/ma16134781
Dojčinović M, Prokić Cvetković R, Sedmak A, Popović O, Cvetković I, Radu D. Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy. in Materials. 2023;16(13):4781.
doi:10.3390/ma16134781 .
Dojčinović, Marina, Prokić Cvetković, Radica, Sedmak, Aleksandar, Popović, Olivera, Cvetković, Ivana, Radu, Dorin, "Effect of Shielding Gas Arc Welding Process on Cavitation Resistance of Welded Joints of AlMg4.5Mn Alloy" in Materials, 16, no. 13 (2023):4781,
https://doi.org/10.3390/ma16134781 . .

Cavitation resistance of the material PA 3200 GF produced by selective laser sintering

Dojčinović, Marina B.; Erić Cekić, Olivera A.; Svetel, Igor; Ćirić-Kostić, Snežana M.; Bogojević, Nebojša M.

(International Institute for the Science of Sintering (IISS), 2023)

TY  - JOUR
AU  - Dojčinović, Marina B.
AU  - Erić Cekić, Olivera A.
AU  - Svetel, Igor
AU  - Ćirić-Kostić, Snežana M.
AU  - Bogojević, Nebojša M.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6731
AB  - The present study focuses on the results of cavitation resistance research of samples obtained by the Selective Laser Sintering technology. The samples were made from polyamide powder reinforced with glass beads – PA 3200 GF. The laser-sintered samples were produced from 100% new and recycled powder mixed with 70% of new powder. The samples were tested under cavitation conditions using an ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Examination of the morphology of cavitation damage was investigated by scanning electron microscopy. The change in mass loss during different cavitation times was measured on the tested samples. The main objective of the research was to determine the validity of the application of the tested material in cavitation conditions.
PB  - International Institute for the Science of Sintering (IISS)
T2  - Science of Sintering
T1  - Cavitation resistance of the material PA 3200 GF produced by selective laser sintering
EP  - 329
IS  - 3
SP  - 321
VL  - 55
DO  - 10.2298/SOS220522011D
ER  - 
@article{
author = "Dojčinović, Marina B. and Erić Cekić, Olivera A. and Svetel, Igor and Ćirić-Kostić, Snežana M. and Bogojević, Nebojša M.",
year = "2023",
abstract = "The present study focuses on the results of cavitation resistance research of samples obtained by the Selective Laser Sintering technology. The samples were made from polyamide powder reinforced with glass beads – PA 3200 GF. The laser-sintered samples were produced from 100% new and recycled powder mixed with 70% of new powder. The samples were tested under cavitation conditions using an ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Examination of the morphology of cavitation damage was investigated by scanning electron microscopy. The change in mass loss during different cavitation times was measured on the tested samples. The main objective of the research was to determine the validity of the application of the tested material in cavitation conditions.",
publisher = "International Institute for the Science of Sintering (IISS)",
journal = "Science of Sintering",
title = "Cavitation resistance of the material PA 3200 GF produced by selective laser sintering",
pages = "329-321",
number = "3",
volume = "55",
doi = "10.2298/SOS220522011D"
}
Dojčinović, M. B., Erić Cekić, O. A., Svetel, I., Ćirić-Kostić, S. M.,& Bogojević, N. M.. (2023). Cavitation resistance of the material PA 3200 GF produced by selective laser sintering. in Science of Sintering
International Institute for the Science of Sintering (IISS)., 55(3), 321-329.
https://doi.org/10.2298/SOS220522011D
Dojčinović MB, Erić Cekić OA, Svetel I, Ćirić-Kostić SM, Bogojević NM. Cavitation resistance of the material PA 3200 GF produced by selective laser sintering. in Science of Sintering. 2023;55(3):321-329.
doi:10.2298/SOS220522011D .
Dojčinović, Marina B., Erić Cekić, Olivera A., Svetel, Igor, Ćirić-Kostić, Snežana M., Bogojević, Nebojša M., "Cavitation resistance of the material PA 3200 GF produced by selective laser sintering" in Science of Sintering, 55, no. 3 (2023):321-329,
https://doi.org/10.2298/SOS220522011D . .

New types of protective coatings and development of test methods

Pavlović, Marko; Dojčinović, Marina; Harbinja, Muhamed; Hođić, Atif; Stojanović, Mirjana; Čeganjac, Zoran

(Society for Structural Integrity and Life (DIVK), 2023)

TY  - JOUR
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Harbinja, Muhamed
AU  - Hođić, Atif
AU  - Stojanović, Mirjana
AU  - Čeganjac, Zoran
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6995
AB  - The paper presents the results of synthesis and characterisation of refractory coatings based on various fillers
intended for the protection of metallic structures. Refractory
fillers applied are based on mullite, cordierite, zirconium
silicate, and pyrophyllite. Refractory filler samples are treated
by micronization grinding down to 15 m filler particles.
Methods as XRD, SEM, and optical microscopy are used
for characterisation. Performed tests determined the optimal
composition of protective coatings and manufacturing processes. According to standard ASTM G32 an ultrasonic vibrational method with stationary sample was used for characterising the obtained coatings. The goal of the research was
to determine the coating quality and its applications in
metallic surface protection in conditions of wear, corrosion,
cavitation, and high temperature. All coatings were tested
under the same conditions. A comparison of cavitation resistance is given for tested coatings. Coating quality is evaluated based on cavitation loss rate and on the analysis of
sample surface damage formation and development under
effects of cavitation.
AB  - U radu su prikazani rezultati sinteze i karakterizacije
vatrostalnih premaza na bazi različitih punioca namenjenih
za zaštitu metalnih konstrukcija. Korišćeni su vatrostalni
punioci na bazi mulita, kordijerita, cirkonijum silikata i
pirofilita. Uzorci vatrostalnih punioca podvrgnuti su mikronizirajućem mlevenju na veličinu zrna punioca 15 m. Za
karakterizaciju dobijenih punioca korišćene su metode XRD,
SEM i optička mikroskopija. Ispitivanjem je određen optimalni sastav zaštitnih premaza i postupci njihove izrade. Za
karakterizaciju dobijenih premaza primenjena je ultrazvučna
vibraciona metoda sa stacionarnim uzorkom prema standardu ASTM G32. Cilj ispitivanja bio je određivanje kvaliteta premaza i mogućnosti primene za zaštitu metalnih površina u uslovima habanja, korozije, kavitacije i povišenih temperatura. Svi premazi su ispitivani pod istim uslovima. Prikazan je uporedni pregled kavitacione otpornosti ispitivanih
premaza. Kvalitet premaza ocenjen je na osnovu vrednosti
kavitacione brzine, analize nastajanja i razvoja oštećenja
površine uzoraka pod dejstvom kavitacije.
PB  - Society for Structural Integrity and Life (DIVK)
T2  - Structural Integrity and Life
T1  - New types of protective coatings and development of test methods
T1  - Nove vrste zaštitnih premaza i razvoj metoda ispitivanja
EP  - 260
IS  - 3
SP  - 257
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6995
ER  - 
@article{
author = "Pavlović, Marko and Dojčinović, Marina and Harbinja, Muhamed and Hođić, Atif and Stojanović, Mirjana and Čeganjac, Zoran",
year = "2023",
abstract = "The paper presents the results of synthesis and characterisation of refractory coatings based on various fillers
intended for the protection of metallic structures. Refractory
fillers applied are based on mullite, cordierite, zirconium
silicate, and pyrophyllite. Refractory filler samples are treated
by micronization grinding down to 15 m filler particles.
Methods as XRD, SEM, and optical microscopy are used
for characterisation. Performed tests determined the optimal
composition of protective coatings and manufacturing processes. According to standard ASTM G32 an ultrasonic vibrational method with stationary sample was used for characterising the obtained coatings. The goal of the research was
to determine the coating quality and its applications in
metallic surface protection in conditions of wear, corrosion,
cavitation, and high temperature. All coatings were tested
under the same conditions. A comparison of cavitation resistance is given for tested coatings. Coating quality is evaluated based on cavitation loss rate and on the analysis of
sample surface damage formation and development under
effects of cavitation., U radu su prikazani rezultati sinteze i karakterizacije
vatrostalnih premaza na bazi različitih punioca namenjenih
za zaštitu metalnih konstrukcija. Korišćeni su vatrostalni
punioci na bazi mulita, kordijerita, cirkonijum silikata i
pirofilita. Uzorci vatrostalnih punioca podvrgnuti su mikronizirajućem mlevenju na veličinu zrna punioca 15 m. Za
karakterizaciju dobijenih punioca korišćene su metode XRD,
SEM i optička mikroskopija. Ispitivanjem je određen optimalni sastav zaštitnih premaza i postupci njihove izrade. Za
karakterizaciju dobijenih premaza primenjena je ultrazvučna
vibraciona metoda sa stacionarnim uzorkom prema standardu ASTM G32. Cilj ispitivanja bio je određivanje kvaliteta premaza i mogućnosti primene za zaštitu metalnih površina u uslovima habanja, korozije, kavitacije i povišenih temperatura. Svi premazi su ispitivani pod istim uslovima. Prikazan je uporedni pregled kavitacione otpornosti ispitivanih
premaza. Kvalitet premaza ocenjen je na osnovu vrednosti
kavitacione brzine, analize nastajanja i razvoja oštećenja
površine uzoraka pod dejstvom kavitacije.",
publisher = "Society for Structural Integrity and Life (DIVK)",
journal = "Structural Integrity and Life",
title = "New types of protective coatings and development of test methods, Nove vrste zaštitnih premaza i razvoj metoda ispitivanja",
pages = "260-257",
number = "3",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6995"
}
Pavlović, M., Dojčinović, M., Harbinja, M., Hođić, A., Stojanović, M.,& Čeganjac, Z.. (2023). New types of protective coatings and development of test methods. in Structural Integrity and Life
Society for Structural Integrity and Life (DIVK)., 23(3), 257-260.
https://hdl.handle.net/21.15107/rcub_technorep_6995
Pavlović M, Dojčinović M, Harbinja M, Hođić A, Stojanović M, Čeganjac Z. New types of protective coatings and development of test methods. in Structural Integrity and Life. 2023;23(3):257-260.
https://hdl.handle.net/21.15107/rcub_technorep_6995 .
Pavlović, Marko, Dojčinović, Marina, Harbinja, Muhamed, Hođić, Atif, Stojanović, Mirjana, Čeganjac, Zoran, "New types of protective coatings and development of test methods" in Structural Integrity and Life, 23, no. 3 (2023):257-260,
https://hdl.handle.net/21.15107/rcub_technorep_6995 .

QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE

Pavlović, Marko; Tanasković, Zorica; Dojčinović, Marina; Aćimović, Zagorka

(Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice, 2023)

TY  - CONF
AU  - Pavlović, Marko
AU  - Tanasković, Zorica
AU  - Dojčinović, Marina
AU  - Aćimović, Zagorka
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7004
AB  - The composition and production procedures of refractory coatings based on zirconium silicate for the protection of metal
structures in conditions of wear, cavitation and corrosion were investigated in the paper. The composition of the coating was defined
with a filler based on zirconium silicate, a binder based on epoxy resin, organic additives and an organic solvent. A method for quality
control of obtained coatings was investigated using the ultrasonic vibration method with a stationary sample according to the ASTM
G 32 standard.
The following methods were used to characterize the obtained filler samples: X-ray diffraction analysis (XRD) and scanning electron
microscopy (SEM). The change in the mass of the samples as a function of the cavitation time was monitored and the cavitation rate
was determined. The formation and development of damage to the coating surface was monitored using a scanning electron
microscope. The obtained test results showed a satisfactory resistance of the protective coatings to the effect of cavitation, with small
damage to the coating surface and a cavitation rate of 0.6 mg/min. Tests have shown that the application of the ultrasonic vibration
method is suitable for a quick assessment of the quality of protective coatings during synthesis and a forecast of their resistance and
stability during exploitation in the protection of equipment parts in mining and metallurgy.
PB  - Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice
C3  - Proceedings / 13th International Conference Science and Higher Education in Function of Sustainable Development - SED 2023, 5th - 8th June 2023, Vrnjacka Banja, Serbia
T1  - QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE
EP  - 4-58
SP  - 4-55
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7004
ER  - 
@conference{
author = "Pavlović, Marko and Tanasković, Zorica and Dojčinović, Marina and Aćimović, Zagorka",
year = "2023",
abstract = "The composition and production procedures of refractory coatings based on zirconium silicate for the protection of metal
structures in conditions of wear, cavitation and corrosion were investigated in the paper. The composition of the coating was defined
with a filler based on zirconium silicate, a binder based on epoxy resin, organic additives and an organic solvent. A method for quality
control of obtained coatings was investigated using the ultrasonic vibration method with a stationary sample according to the ASTM
G 32 standard.
The following methods were used to characterize the obtained filler samples: X-ray diffraction analysis (XRD) and scanning electron
microscopy (SEM). The change in the mass of the samples as a function of the cavitation time was monitored and the cavitation rate
was determined. The formation and development of damage to the coating surface was monitored using a scanning electron
microscope. The obtained test results showed a satisfactory resistance of the protective coatings to the effect of cavitation, with small
damage to the coating surface and a cavitation rate of 0.6 mg/min. Tests have shown that the application of the ultrasonic vibration
method is suitable for a quick assessment of the quality of protective coatings during synthesis and a forecast of their resistance and
stability during exploitation in the protection of equipment parts in mining and metallurgy.",
publisher = "Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice",
journal = "Proceedings / 13th International Conference Science and Higher Education in Function of Sustainable Development - SED 2023, 5th - 8th June 2023, Vrnjacka Banja, Serbia",
title = "QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE",
pages = "4-58-4-55",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7004"
}
Pavlović, M., Tanasković, Z., Dojčinović, M.,& Aćimović, Z.. (2023). QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE. in Proceedings / 13th International Conference Science and Higher Education in Function of Sustainable Development - SED 2023, 5th - 8th June 2023, Vrnjacka Banja, Serbia
Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice., 4-55-4-58.
https://hdl.handle.net/21.15107/rcub_technorep_7004
Pavlović M, Tanasković Z, Dojčinović M, Aćimović Z. QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE. in Proceedings / 13th International Conference Science and Higher Education in Function of Sustainable Development - SED 2023, 5th - 8th June 2023, Vrnjacka Banja, Serbia. 2023;:4-55-4-58.
https://hdl.handle.net/21.15107/rcub_technorep_7004 .
Pavlović, Marko, Tanasković, Zorica, Dojčinović, Marina, Aćimović, Zagorka, "QUALLITY MANAGEMENT OF PROCETIVE COATINGS BASED ON ZIRCONIUM SILICATE" in Proceedings / 13th International Conference Science and Higher Education in Function of Sustainable Development - SED 2023, 5th - 8th June 2023, Vrnjacka Banja, Serbia (2023):4-55-4-58,
https://hdl.handle.net/21.15107/rcub_technorep_7004 .

EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS

Pavlović, Marko; Dojčinović, Marina; Harbinja, Muhamed; Hođić, Atif; Radulović, Dragan; Stojanović, Mirjana; Aćimović, Zagorka

(Bor : University of Belgrade, Technical Faculty, 2023)

TY  - CONF
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Harbinja, Muhamed
AU  - Hođić, Atif
AU  - Radulović, Dragan
AU  - Stojanović, Mirjana
AU  - Aćimović, Zagorka
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7005
AB  - In the paper, samples of protective coatings based on pyrophyllite were examined. The initial sample of
pyrophyllite was obtained from the Parsovići deposit, Konjic, Sarajevo, AD Harbi BiH. Pyrophyllite
samples were subjected to micronizing grinding to a filler grain size of 20 μm. XRD, SEM and optical
microscopy methods were used to characterize the obtained fillers based on pyrophyllite. The optimal
composition of protective coatings based on pyrophyllite and the manufacturing process were determined.
The resistance of refractory coatings to the effect of cavitation was experimentally determined using the
ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Based on the
value of the cavitation rate, the analysis of the formation and development of damage to the surface of the
samples, the possibility of applying a protective coating in the conditions of exploitation in which the
occurrence of corrosion and cavitation is expected was assessed.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
T1  - EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS
EP  - 360
SP  - 357
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7005
ER  - 
@conference{
author = "Pavlović, Marko and Dojčinović, Marina and Harbinja, Muhamed and Hođić, Atif and Radulović, Dragan and Stojanović, Mirjana and Aćimović, Zagorka",
year = "2023",
abstract = "In the paper, samples of protective coatings based on pyrophyllite were examined. The initial sample of
pyrophyllite was obtained from the Parsovići deposit, Konjic, Sarajevo, AD Harbi BiH. Pyrophyllite
samples were subjected to micronizing grinding to a filler grain size of 20 μm. XRD, SEM and optical
microscopy methods were used to characterize the obtained fillers based on pyrophyllite. The optimal
composition of protective coatings based on pyrophyllite and the manufacturing process were determined.
The resistance of refractory coatings to the effect of cavitation was experimentally determined using the
ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Based on the
value of the cavitation rate, the analysis of the formation and development of damage to the surface of the
samples, the possibility of applying a protective coating in the conditions of exploitation in which the
occurrence of corrosion and cavitation is expected was assessed.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia",
title = "EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS",
pages = "360-357",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7005"
}
Pavlović, M., Dojčinović, M., Harbinja, M., Hođić, A., Radulović, D., Stojanović, M.,& Aćimović, Z.. (2023). EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
Bor : University of Belgrade, Technical Faculty., 357-360.
https://hdl.handle.net/21.15107/rcub_technorep_7005
Pavlović M, Dojčinović M, Harbinja M, Hođić A, Radulović D, Stojanović M, Aćimović Z. EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS. in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia. 2023;:357-360.
https://hdl.handle.net/21.15107/rcub_technorep_7005 .
Pavlović, Marko, Dojčinović, Marina, Harbinja, Muhamed, Hođić, Atif, Radulović, Dragan, Stojanović, Mirjana, Aćimović, Zagorka, "EFFECTS OF THE APPLICATION OF PYROPHYLITE IN THE COMPOSITION OF PROTECTIVE COATINGS" in Proceedings / 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia (2023):357-360,
https://hdl.handle.net/21.15107/rcub_technorep_7005 .

POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT

Jezdimirović, Slađana; Dojčinović, Marina

(Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS, 2023)

TY  - CONF
AU  - Jezdimirović, Slađana
AU  - Dojčinović, Marina
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7006
AB  - With the development of industry and population growth in recent years, there are problems related
to wastewater from production. All wastewater from the plant, regardless of how it was generated,
contains harmful substances that may have a certain degree of toxic impurities and must be treated
if their quality does not meet the legal framework. The goal of wastewater treatment is to remove
harmful substances, which reduces the degree of pollution. Most of the pollutants are of organic
origin and their removal can be realized by applying advanced techniques with ultrasound and
ultrasonic cavitation to achieve water quality that complies with legal regulations. The principle of
operation of ultrasound in wastewater treatment is based on the conversion of electricity into
vibrations of a certain amplitude and frequency, which cause the decomposition and destroying of
microorganisms and bacteria. Improved processes are the most efficient methods for removing and
degrading sparingly soluble pollutants from wastewater. The purification process is optimized in
regard to to the technological procedure, concentration, treatment time and the amount of oxidizing
agent applied.
AB  - Razvojem industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa
otpadnim vodama iz proizvodnje. Sve otpadne vode iz postrojenja, bez obzira kako su nastale,
sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa i moraju se prečistiti
ako njihov kvalitet ne odgovara zakonskim okvirima. Cilj tretmana otpadnih voda je uklanjanje
štetnih materija čime se postiže smanjenje stepena zagađenosti. Većina zagađujućih materija su
organskog porekla i njihovo uklanjanje se može realizovati primenom naprednih tehnika ultrazvuka
i ultrazvučne kavitacije, a sve u cilju postizanja kvaliteta vode u skladu sa zakonskom regulativom.
Princip delovanja ultrazvuka u obradi otpadnih voda temelji se na pretvaranju električne energije u
vibracije određene amplitude i frekvencije, koje izazivaju razgradnju i uništavanje
mikroorganizama i bakterija. Unapređeni procesi predstavljaju najefikasnije metode za uklanjanje i
degradaciju teško rastvornih zagađujućih materija iz otpadnih voda. Proces prečišćavanja je
optimizovan u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu
primenjenog oksidacionog sredstva.
PB  - Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS
C3  - 11th International Conference on Renewable Electrical Power Sources
T1  - POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT
T1  - MOGUĆNOST PRIMENE ULTRAZVUČNE KAVITACIJE U PROCESU PRERADE INDUSTRIJSKIH OTPADNIH VODA
EP  - 226
SP  - 219
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7006
ER  - 
@conference{
author = "Jezdimirović, Slađana and Dojčinović, Marina",
year = "2023",
abstract = "With the development of industry and population growth in recent years, there are problems related
to wastewater from production. All wastewater from the plant, regardless of how it was generated,
contains harmful substances that may have a certain degree of toxic impurities and must be treated
if their quality does not meet the legal framework. The goal of wastewater treatment is to remove
harmful substances, which reduces the degree of pollution. Most of the pollutants are of organic
origin and their removal can be realized by applying advanced techniques with ultrasound and
ultrasonic cavitation to achieve water quality that complies with legal regulations. The principle of
operation of ultrasound in wastewater treatment is based on the conversion of electricity into
vibrations of a certain amplitude and frequency, which cause the decomposition and destroying of
microorganisms and bacteria. Improved processes are the most efficient methods for removing and
degrading sparingly soluble pollutants from wastewater. The purification process is optimized in
regard to to the technological procedure, concentration, treatment time and the amount of oxidizing
agent applied., Razvojem industrije i rastom populacije tokom poslednjih godina javljaju se problemi u vezi sa
otpadnim vodama iz proizvodnje. Sve otpadne vode iz postrojenja, bez obzira kako su nastale,
sadrže štetne materije koje mogu da imaju i određen stepen toksičnih primesa i moraju se prečistiti
ako njihov kvalitet ne odgovara zakonskim okvirima. Cilj tretmana otpadnih voda je uklanjanje
štetnih materija čime se postiže smanjenje stepena zagađenosti. Većina zagađujućih materija su
organskog porekla i njihovo uklanjanje se može realizovati primenom naprednih tehnika ultrazvuka
i ultrazvučne kavitacije, a sve u cilju postizanja kvaliteta vode u skladu sa zakonskom regulativom.
Princip delovanja ultrazvuka u obradi otpadnih voda temelji se na pretvaranju električne energije u
vibracije određene amplitude i frekvencije, koje izazivaju razgradnju i uništavanje
mikroorganizama i bakterija. Unapređeni procesi predstavljaju najefikasnije metode za uklanjanje i
degradaciju teško rastvornih zagađujućih materija iz otpadnih voda. Proces prečišćavanja je
optimizovan u odnosu na tehnološki postupak, koncentraciju, vreme tretmana i količinu
primenjenog oksidacionog sredstva.",
publisher = "Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS",
journal = "11th International Conference on Renewable Electrical Power Sources",
title = "POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT, MOGUĆNOST PRIMENE ULTRAZVUČNE KAVITACIJE U PROCESU PRERADE INDUSTRIJSKIH OTPADNIH VODA",
pages = "226-219",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7006"
}
Jezdimirović, S.,& Dojčinović, M.. (2023). POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT. in 11th International Conference on Renewable Electrical Power Sources
Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS., 219-226.
https://hdl.handle.net/21.15107/rcub_technorep_7006
Jezdimirović S, Dojčinović M. POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT. in 11th International Conference on Renewable Electrical Power Sources. 2023;:219-226.
https://hdl.handle.net/21.15107/rcub_technorep_7006 .
Jezdimirović, Slađana, Dojčinović, Marina, "POSSIBILITY OF USING ULTRASONIC CAVITATION IN THE PROCESS OF INDUSTRIAL WASTEWATER TREATMENT" in 11th International Conference on Renewable Electrical Power Sources (2023):219-226,
https://hdl.handle.net/21.15107/rcub_technorep_7006 .

THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES

Jezdimirović, Slađana; Dojčinović, Marina

(Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS, 2023)

TY  - CONF
AU  - Jezdimirović, Slađana
AU  - Dojčinović, Marina
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7007
AB  - The burning of fossil fuels and other human activities in order to clear the land for the needs of
agriculture or the construction of settlements, lead to increased emissions by releasing into the
atmosphere gases that retain heat within it. The atmosphere, similar to glass, mostly passes the
solar radiation, but it is poorly permeable to the radiation of the Earth's surface. Part of the energy
that enters the Earth - atmosphere system remains in it and is converted into thermal energy,
heating the Earth's surface and the lower layers of the atmosphere and leading to the appearance of
the greenhouse effect. The greenhouse effect is the process of the planet Earth warming, caused by
the disruption of the energy balance between the amount of radiation that the Earth's surface
receives from the Sun and returns to space. Part of the heat radiation, which reaches the Earth's
crust, is reflected into the atmosphere and instead of going into space, it is absorbed by some gases
in the atmosphere and re-radiated to the Earth. In this way, the temperature of the Earth's surface
rises. The gases that contribute the most to this phenomenon are carbon dioxide and methane and
they build up in the atmosphere, trapping more and more heat near the Earth's surface thus causing
the climate to warm. As a result, there are sudden changes, which lead to the parameters of global
warming and climate change becoming unpredictable in the occurrence of frequent hurricanes,
floods, cyclones and other weather disasters, melting of ice on the polar caps and glaciers, which
cause an increase in the height of the seas and oceans, the impossibility of accurate prediction
weather forecasts, etc. Greenhouse gas emissions are critical to understanding and addressing the climate crisis and must be reduced by 2030 to limit global warming to 1.5 °C compared to pre
industrial levels by the end of the century.
AB  - Sagorevanje fosilnih goriva i drugih ljudskih aktivnosti u cilju raščišćavanja zemljišta za potrebe
zemljoradnje ili izgradnje naselja, dovode do povećane emisije, oslobađajući u atmosferu gasove
koji zadržavaju toplotu unutar nje. Atmosfera, slično staklu, uglavnom propušta Sunčevo zračenje,
ali je slabo propusna za zračenje Zemljine površine. Deo energije koji uđe u sistem Zemlja -
atmosfera, ostaje u njemu i pretvara se u toplotnu energiju, zagrevajući Zemljinu površinu i niže
slojeve atmosfere i dovodi do pojave efekta staklene bašte. Efekat staklene bašte je proces
zagrevanja planete Zemlje koji je nastaje poremećajem energetske ravnoteže između količine
zračenja koje Zemljina površina prima od Sunca i vraća u svemir. Deo toplotnog zračenja, koje
stiže do Zemljine kore, odbija se u atmosferu i, umesto da ode u svemir, apsorbuju ga neki gasovi i
ponovno zrače na Zemlju. Na ovaj način, temperatura Zemljine površine se povišava. Ovom
fenomenu najviše diprinose gasovi ugljen-dioksid i metan koji se nagomilavaju u atmosferi,
zadržavajući sve više toplote pri Zemljinoj površini, što uzrokuje otopljavanje. Kao posledicu toga,
javljaju se nagle promene koje dovode da parametri globalnog zagrevanja i klimatskih promena
postaju nepredvidivi u pojavama učestalih uragana, poplava, ciklona i ostalih vremenskih
nepogoda, topljenja leda na polarnim kapama i glečerima, što uzrokuje porast visine mora i
okeana, nemogućnost tačnog predviđanja vremenske prognoze i sl. Emisije gasova staklene bašte
su od ključne važnosti za razumevanje i rešavanje klimatske krize i moraju se smanjiti do 2030.
god., kako bi se ograničilo globalno zagrevanje na 1,5 °C u poređenju sa predindustrijskim nivoima
do kraja veka.
PB  - Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS
C3  - 11th International Conference on Renewable Electrical Power Sources
T1  - THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES
T1  - UTICAJ EFEKTA STAKLENE BAŠTE NA KLIMATSKE PROMENE
EP  - 294
SP  - 287
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7007
ER  - 
@conference{
author = "Jezdimirović, Slađana and Dojčinović, Marina",
year = "2023",
abstract = "The burning of fossil fuels and other human activities in order to clear the land for the needs of
agriculture or the construction of settlements, lead to increased emissions by releasing into the
atmosphere gases that retain heat within it. The atmosphere, similar to glass, mostly passes the
solar radiation, but it is poorly permeable to the radiation of the Earth's surface. Part of the energy
that enters the Earth - atmosphere system remains in it and is converted into thermal energy,
heating the Earth's surface and the lower layers of the atmosphere and leading to the appearance of
the greenhouse effect. The greenhouse effect is the process of the planet Earth warming, caused by
the disruption of the energy balance between the amount of radiation that the Earth's surface
receives from the Sun and returns to space. Part of the heat radiation, which reaches the Earth's
crust, is reflected into the atmosphere and instead of going into space, it is absorbed by some gases
in the atmosphere and re-radiated to the Earth. In this way, the temperature of the Earth's surface
rises. The gases that contribute the most to this phenomenon are carbon dioxide and methane and
they build up in the atmosphere, trapping more and more heat near the Earth's surface thus causing
the climate to warm. As a result, there are sudden changes, which lead to the parameters of global
warming and climate change becoming unpredictable in the occurrence of frequent hurricanes,
floods, cyclones and other weather disasters, melting of ice on the polar caps and glaciers, which
cause an increase in the height of the seas and oceans, the impossibility of accurate prediction
weather forecasts, etc. Greenhouse gas emissions are critical to understanding and addressing the climate crisis and must be reduced by 2030 to limit global warming to 1.5 °C compared to pre
industrial levels by the end of the century., Sagorevanje fosilnih goriva i drugih ljudskih aktivnosti u cilju raščišćavanja zemljišta za potrebe
zemljoradnje ili izgradnje naselja, dovode do povećane emisije, oslobađajući u atmosferu gasove
koji zadržavaju toplotu unutar nje. Atmosfera, slično staklu, uglavnom propušta Sunčevo zračenje,
ali je slabo propusna za zračenje Zemljine površine. Deo energije koji uđe u sistem Zemlja -
atmosfera, ostaje u njemu i pretvara se u toplotnu energiju, zagrevajući Zemljinu površinu i niže
slojeve atmosfere i dovodi do pojave efekta staklene bašte. Efekat staklene bašte je proces
zagrevanja planete Zemlje koji je nastaje poremećajem energetske ravnoteže između količine
zračenja koje Zemljina površina prima od Sunca i vraća u svemir. Deo toplotnog zračenja, koje
stiže do Zemljine kore, odbija se u atmosferu i, umesto da ode u svemir, apsorbuju ga neki gasovi i
ponovno zrače na Zemlju. Na ovaj način, temperatura Zemljine površine se povišava. Ovom
fenomenu najviše diprinose gasovi ugljen-dioksid i metan koji se nagomilavaju u atmosferi,
zadržavajući sve više toplote pri Zemljinoj površini, što uzrokuje otopljavanje. Kao posledicu toga,
javljaju se nagle promene koje dovode da parametri globalnog zagrevanja i klimatskih promena
postaju nepredvidivi u pojavama učestalih uragana, poplava, ciklona i ostalih vremenskih
nepogoda, topljenja leda na polarnim kapama i glečerima, što uzrokuje porast visine mora i
okeana, nemogućnost tačnog predviđanja vremenske prognoze i sl. Emisije gasova staklene bašte
su od ključne važnosti za razumevanje i rešavanje klimatske krize i moraju se smanjiti do 2030.
god., kako bi se ograničilo globalno zagrevanje na 1,5 °C u poređenju sa predindustrijskim nivoima
do kraja veka.",
publisher = "Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS",
journal = "11th International Conference on Renewable Electrical Power Sources",
title = "THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES, UTICAJ EFEKTA STAKLENE BAŠTE NA KLIMATSKE PROMENE",
pages = "294-287",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7007"
}
Jezdimirović, S.,& Dojčinović, M.. (2023). THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES. in 11th International Conference on Renewable Electrical Power Sources
Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia SMEITS., 287-294.
https://hdl.handle.net/21.15107/rcub_technorep_7007
Jezdimirović S, Dojčinović M. THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES. in 11th International Conference on Renewable Electrical Power Sources. 2023;:287-294.
https://hdl.handle.net/21.15107/rcub_technorep_7007 .
Jezdimirović, Slađana, Dojčinović, Marina, "THE INFLUENCE OF THE GLASS GARDEN EFFECT ON CLIMATE CHANGES" in 11th International Conference on Renewable Electrical Power Sources (2023):287-294,
https://hdl.handle.net/21.15107/rcub_technorep_7007 .

Cavitation resistance of welded joints of AlMg4.5Mn alloy

Dojčinović, Marina; Prokić Cvetković, Radica; Sedmak, Aleksandar; Popović, Olivera; Cvetković, Ivana

(Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“, 2023)

TY  - CONF
AU  - Dojčinović, Marina
AU  - Prokić Cvetković, Radica
AU  - Sedmak, Aleksandar
AU  - Popović, Olivera
AU  - Cvetković, Ivana
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7008
AB  - Cavitation resistance of welded joints of the three-component aluminum alloy AlMg4.5Mn was examined in this paper. Tests were performed on samples of welded joints as well as on samples of the base material. Welding was performed by TIG and MIG procedures in a protective atmosphere of pure argon. After the welding, metallographic tests were performed. The ultrasonic cavitation test method with a stationary sample was used to test the resistance to cavitation according standard ASTM G32 [1]. During the test, the change in mass of the samples was monitored in order to determine the cavitation rate. The least squares method was applied, where the slope of the straight line determines the cavitation rate (Fig.1). The base material of the AlMg4.5Mn alloy has the highest resistance to the effect of cavitation (the lowest total mass loss and the lowest cavitation rate). The welded joint obtained by the MIG process has a higher resistance to the effect of cavitation compared to the sample obtained by the TIG process. This behavior is a consequence of the smaller porosity and finer microstructure of the sample obtained by the MIG process (Fig. 1). The morphology of damage to the surface of samples exposed to the effect of cavitation during testing was monitored using scanning microscopy. It was shown that ductile fracture mechanism was identified for all studied samples together with the presence of small fatigue like craters.
PB  - Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“
C3  - Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia
T1  - Cavitation resistance of welded joints of AlMg4.5Mn alloy
SP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7008
ER  - 
@conference{
author = "Dojčinović, Marina and Prokić Cvetković, Radica and Sedmak, Aleksandar and Popović, Olivera and Cvetković, Ivana",
year = "2023",
abstract = "Cavitation resistance of welded joints of the three-component aluminum alloy AlMg4.5Mn was examined in this paper. Tests were performed on samples of welded joints as well as on samples of the base material. Welding was performed by TIG and MIG procedures in a protective atmosphere of pure argon. After the welding, metallographic tests were performed. The ultrasonic cavitation test method with a stationary sample was used to test the resistance to cavitation according standard ASTM G32 [1]. During the test, the change in mass of the samples was monitored in order to determine the cavitation rate. The least squares method was applied, where the slope of the straight line determines the cavitation rate (Fig.1). The base material of the AlMg4.5Mn alloy has the highest resistance to the effect of cavitation (the lowest total mass loss and the lowest cavitation rate). The welded joint obtained by the MIG process has a higher resistance to the effect of cavitation compared to the sample obtained by the TIG process. This behavior is a consequence of the smaller porosity and finer microstructure of the sample obtained by the MIG process (Fig. 1). The morphology of damage to the surface of samples exposed to the effect of cavitation during testing was monitored using scanning microscopy. It was shown that ductile fracture mechanism was identified for all studied samples together with the presence of small fatigue like craters.",
publisher = "Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“",
journal = "Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia",
title = "Cavitation resistance of welded joints of AlMg4.5Mn alloy",
pages = "29",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7008"
}
Dojčinović, M., Prokić Cvetković, R., Sedmak, A., Popović, O.,& Cvetković, I.. (2023). Cavitation resistance of welded joints of AlMg4.5Mn alloy. in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia
Belgrade : Društvo za integritet i vek konstrukcija „Prof. dr Stojan Sedmak“., 29.
https://hdl.handle.net/21.15107/rcub_technorep_7008
Dojčinović M, Prokić Cvetković R, Sedmak A, Popović O, Cvetković I. Cavitation resistance of welded joints of AlMg4.5Mn alloy. in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia. 2023;:29.
https://hdl.handle.net/21.15107/rcub_technorep_7008 .
Dojčinović, Marina, Prokić Cvetković, Radica, Sedmak, Aleksandar, Popović, Olivera, Cvetković, Ivana, "Cavitation resistance of welded joints of AlMg4.5Mn alloy" in Book of Abstracts / 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), April 2-4, 2023, Belgrade, Serbia (2023):29,
https://hdl.handle.net/21.15107/rcub_technorep_7008 .

EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12

Dojčinović, Marina B.; Erić Cekć, Olivera A.; Ćirić-Kostić, Snežana M.; Bogojević, Nebojša M.; Sinđelić, Vladimir Z.

(Belgrade : University, Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Dojčinović, Marina B.
AU  - Erić Cekć, Olivera A.
AU  - Ćirić-Kostić, Snežana M.
AU  - Bogojević, Nebojša M.
AU  - Sinđelić, Vladimir Z.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7009
AB  - The present study focuses the cavitation resistance results of samples obtained by the Selective Laser
Sintering technology. All samples were made from Nylon 12 – Polyamide 12 powder, also known as PA2200
in the industry, produced by EOS GmbH. The powder used for building the samples represented a mixture of
50% new powder and 50% recycled powder. Samples with different section thicknesses (0.4mm; 0.8mm and
1.0mm) were subjected to the ultrasonically induced cavitation test method to investigate the effect of geometry
on their cavitation behaviour. The change in mass loss during different cavitation times was measured on the
tested samples. The morphology of cavitation damage was characterized using Scanning Electron Microscopy
(SEM). The results obtained in this paper have shown that section thickness of the samples has a significant
influence on the cavitation resistance, with the highest cavitation resistance obtained for the samples a
thickness of 0.4mm.
PB  - Belgrade : University, Faculty of Mechanical Engineering
C3  - Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia
T1  - EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12
SP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7009
ER  - 
@conference{
author = "Dojčinović, Marina B. and Erić Cekć, Olivera A. and Ćirić-Kostić, Snežana M. and Bogojević, Nebojša M. and Sinđelić, Vladimir Z.",
year = "2023",
abstract = "The present study focuses the cavitation resistance results of samples obtained by the Selective Laser
Sintering technology. All samples were made from Nylon 12 – Polyamide 12 powder, also known as PA2200
in the industry, produced by EOS GmbH. The powder used for building the samples represented a mixture of
50% new powder and 50% recycled powder. Samples with different section thicknesses (0.4mm; 0.8mm and
1.0mm) were subjected to the ultrasonically induced cavitation test method to investigate the effect of geometry
on their cavitation behaviour. The change in mass loss during different cavitation times was measured on the
tested samples. The morphology of cavitation damage was characterized using Scanning Electron Microscopy
(SEM). The results obtained in this paper have shown that section thickness of the samples has a significant
influence on the cavitation resistance, with the highest cavitation resistance obtained for the samples a
thickness of 0.4mm.",
publisher = "Belgrade : University, Faculty of Mechanical Engineering",
journal = "Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia",
title = "EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12",
pages = "19",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7009"
}
Dojčinović, M. B., Erić Cekć, O. A., Ćirić-Kostić, S. M., Bogojević, N. M.,& Sinđelić, V. Z.. (2023). EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia
Belgrade : University, Faculty of Mechanical Engineering., 19.
https://hdl.handle.net/21.15107/rcub_technorep_7009
Dojčinović MB, Erić Cekć OA, Ćirić-Kostić SM, Bogojević NM, Sinđelić VZ. EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia. 2023;:19.
https://hdl.handle.net/21.15107/rcub_technorep_7009 .
Dojčinović, Marina B., Erić Cekć, Olivera A., Ćirić-Kostić, Snežana M., Bogojević, Nebojša M., Sinđelić, Vladimir Z., "EFFECT OF SECTION THICKNESS ON CAVITATION BEHAVIOUR OF SELECTIVE LASER SINTERED POLYAMIDE 12" in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia (2023):19,
https://hdl.handle.net/21.15107/rcub_technorep_7009 .

Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service

Timotijević, Milica; Erić Cekić, Olivera; Rajnović, Dragan; Dojčinović, Marina; Janjatović, Petar

(Society for Structural Integrity and Life (DIVK), 2022)

TY  - JOUR
AU  - Timotijević, Milica
AU  - Erić Cekić, Olivera
AU  - Rajnović, Dragan
AU  - Dojčinović, Marina
AU  - Janjatović, Petar
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6320
AB  - In this work, the heat-resistant cast steel HP40Nb alloy, produced in the form of a centrifugally cast tube, which failed after 11.4 years service is investigated. The microstructure is examined using a scanning electron microscope (SEM), while the phases observed are analysed using an energy dispersive X-ray analyser system (EDS). Additionally, fractography is performed on the fractured surface of failed specimens. Mechanical properties of the tube are evaluated by using tensile and Charpy impact testing at room temperature (298 K). Main results indicate that the failed tube microstructure consists of an austenitic matrix and a continuous network of primary eutectic carbides of two types: one rich in Nb (bright particles), and one rich in Cr (dark particles). These carbides are NbC and complex M7C3 (M = Cr, Ni, Fe) type. The brittle intergranular fracture mode is explained by the presence of massive precipitation and coarsening of intergranular carbides at grain boundaries. Lower tensile properties of the in-service exposed tube might be correlated to the morphological, chemical, and distribution changes of precipitates during service at high temperature. Decreased values of hardness can be attributed to increase in grain size, as well as due to the decomposition of Cr-carbide during the heat treatment at temperatures above 1073 K.
AB  - U ovom radu је ispitivana legura od livenog čelika HP40Nb otpornog na toplotu, proizvedena u obliku centrifugalno livene cevi, koja je otkazala posle 11,4 godina eksploatacije. Mikrostruktura je ispitivana primenom skenirajućeg elektronskog mikroskopa SEM, dok su uočene faze analizirane korišćenjem sistema energetski disperzivnog rendgenskog analizatora (EDS). Dodatno, fraktografija je urađena na površini loma oštećenih uzoraka. Mehanička svojstva su procenjena ispitivanjem na zatezanje i ispitivanjem energije udara po Šarpiju na sobnoj temperaturi (298 K). Glavni rezultati su pokazali da se mikrostruktura oštećene cevi sastoji od austenitne osnove i neprekidne mreže primarnih eutektičkih karbida dva tipa: jednog bogatog Nb (svetle čestice) i jednog bogatog Cr (tamne čestice). Oba karbida su tipa NbC i složeni M7C3 (M = Cr, Ni, Fe). Mehanizam krtog intergranularnog loma objašnjen je prisustvom masivnog taloženja grubih intergranularnih karbida na granicama zrna. Niža zatezna svojstva cevi izložene eksploataciji mogu biti u korelaciji sa morfološkim, hemijskim i distributivnim promenama taloga tokom eksploatacije na visokoj temperaturi. Smanjenje vrednosti tvrdoće može se pripisati povećanju veličine zrna kao i razlaganju Cr-karbida tokom termičke obrade na temperaturama iznad 1073 K.
PB  - Society for Structural Integrity and Life (DIVK)
T2  - Structural Integrity and Life
T1  - Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service
T1  - Mikrostrukturni razvoj i degradacija mehaničkih svojstava legure HPNB posle jedanaest godina eksploatacije
EP  - 304
IS  - 3
SP  - 299
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6320
ER  - 
@article{
author = "Timotijević, Milica and Erić Cekić, Olivera and Rajnović, Dragan and Dojčinović, Marina and Janjatović, Petar",
year = "2022",
abstract = "In this work, the heat-resistant cast steel HP40Nb alloy, produced in the form of a centrifugally cast tube, which failed after 11.4 years service is investigated. The microstructure is examined using a scanning electron microscope (SEM), while the phases observed are analysed using an energy dispersive X-ray analyser system (EDS). Additionally, fractography is performed on the fractured surface of failed specimens. Mechanical properties of the tube are evaluated by using tensile and Charpy impact testing at room temperature (298 K). Main results indicate that the failed tube microstructure consists of an austenitic matrix and a continuous network of primary eutectic carbides of two types: one rich in Nb (bright particles), and one rich in Cr (dark particles). These carbides are NbC and complex M7C3 (M = Cr, Ni, Fe) type. The brittle intergranular fracture mode is explained by the presence of massive precipitation and coarsening of intergranular carbides at grain boundaries. Lower tensile properties of the in-service exposed tube might be correlated to the morphological, chemical, and distribution changes of precipitates during service at high temperature. Decreased values of hardness can be attributed to increase in grain size, as well as due to the decomposition of Cr-carbide during the heat treatment at temperatures above 1073 K., U ovom radu је ispitivana legura od livenog čelika HP40Nb otpornog na toplotu, proizvedena u obliku centrifugalno livene cevi, koja je otkazala posle 11,4 godina eksploatacije. Mikrostruktura je ispitivana primenom skenirajućeg elektronskog mikroskopa SEM, dok su uočene faze analizirane korišćenjem sistema energetski disperzivnog rendgenskog analizatora (EDS). Dodatno, fraktografija je urađena na površini loma oštećenih uzoraka. Mehanička svojstva su procenjena ispitivanjem na zatezanje i ispitivanjem energije udara po Šarpiju na sobnoj temperaturi (298 K). Glavni rezultati su pokazali da se mikrostruktura oštećene cevi sastoji od austenitne osnove i neprekidne mreže primarnih eutektičkih karbida dva tipa: jednog bogatog Nb (svetle čestice) i jednog bogatog Cr (tamne čestice). Oba karbida su tipa NbC i složeni M7C3 (M = Cr, Ni, Fe). Mehanizam krtog intergranularnog loma objašnjen je prisustvom masivnog taloženja grubih intergranularnih karbida na granicama zrna. Niža zatezna svojstva cevi izložene eksploataciji mogu biti u korelaciji sa morfološkim, hemijskim i distributivnim promenama taloga tokom eksploatacije na visokoj temperaturi. Smanjenje vrednosti tvrdoće može se pripisati povećanju veličine zrna kao i razlaganju Cr-karbida tokom termičke obrade na temperaturama iznad 1073 K.",
publisher = "Society for Structural Integrity and Life (DIVK)",
journal = "Structural Integrity and Life",
title = "Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service, Mikrostrukturni razvoj i degradacija mehaničkih svojstava legure HPNB posle jedanaest godina eksploatacije",
pages = "304-299",
number = "3",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6320"
}
Timotijević, M., Erić Cekić, O., Rajnović, D., Dojčinović, M.,& Janjatović, P.. (2022). Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service. in Structural Integrity and Life
Society for Structural Integrity and Life (DIVK)., 22(3), 299-304.
https://hdl.handle.net/21.15107/rcub_technorep_6320
Timotijević M, Erić Cekić O, Rajnović D, Dojčinović M, Janjatović P. Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service. in Structural Integrity and Life. 2022;22(3):299-304.
https://hdl.handle.net/21.15107/rcub_technorep_6320 .
Timotijević, Milica, Erić Cekić, Olivera, Rajnović, Dragan, Dojčinović, Marina, Janjatović, Petar, "Microstructure evolution and mechanical properties degradation of HPNB alloy after an eleven-year service" in Structural Integrity and Life, 22, no. 3 (2022):299-304,
https://hdl.handle.net/21.15107/rcub_technorep_6320 .

SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS

Pavlović, Marko; Dojčinović, Marina; Sedmak, Aleksandar; Martić, Igor; Vučetić, Filip; Aćimović, Zagorka

(Bor : Mining and Metallurgy Institute, 2022)

TY  - CONF
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Sedmak, Aleksandar
AU  - Martić, Igor
AU  - Vučetić, Filip
AU  - Aćimović, Zagorka
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7022
AB  - Composition and production procedures of the mullite-based coatings for the protection of metal surfaces in the conditions of cavitation, wear and corrosion were investigated. An ultrasonic vibration method according to the ASTM G32 standard was used to characterize the coating. The change in the mass of samples as a function of the cavitation time was monitored and the cavitation rate was determined. The occurrence and development of the coating surface damage were monitored using a scanning electron microscope. Based on the value of cavitation rate and analysis of the surface damage morphology, the cavitation resistance of coating was determined. Coatings have shown the satisfactory resistance in the conditions of cavitation and possibility of application for the protection of parts of equipment in metallurgy and mining.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
T1  - SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS
EP  - 150
SP  - 147
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7022
ER  - 
@conference{
author = "Pavlović, Marko and Dojčinović, Marina and Sedmak, Aleksandar and Martić, Igor and Vučetić, Filip and Aćimović, Zagorka",
year = "2022",
abstract = "Composition and production procedures of the mullite-based coatings for the protection of metal surfaces in the conditions of cavitation, wear and corrosion were investigated. An ultrasonic vibration method according to the ASTM G32 standard was used to characterize the coating. The change in the mass of samples as a function of the cavitation time was monitored and the cavitation rate was determined. The occurrence and development of the coating surface damage were monitored using a scanning electron microscope. Based on the value of cavitation rate and analysis of the surface damage morphology, the cavitation resistance of coating was determined. Coatings have shown the satisfactory resistance in the conditions of cavitation and possibility of application for the protection of parts of equipment in metallurgy and mining.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor",
title = "SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS",
pages = "150-147",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7022"
}
Pavlović, M., Dojčinović, M., Sedmak, A., Martić, I., Vučetić, F.,& Aćimović, Z.. (2022). SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS. in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
Bor : Mining and Metallurgy Institute., 147-150.
https://hdl.handle.net/21.15107/rcub_technorep_7022
Pavlović M, Dojčinović M, Sedmak A, Martić I, Vučetić F, Aćimović Z. SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS. in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor. 2022;:147-150.
https://hdl.handle.net/21.15107/rcub_technorep_7022 .
Pavlović, Marko, Dojčinović, Marina, Sedmak, Aleksandar, Martić, Igor, Vučetić, Filip, Aćimović, Zagorka, "SYNTHESIS AND CHARACTERISATION OF THE MULLITE-BASED PROTECTIVE COATINGS" in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor (2022):147-150,
https://hdl.handle.net/21.15107/rcub_technorep_7022 .

CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING

Dojčinović, Marina B.; Erić Cekić, Olivera A.; Svetel, Igor; Ćirić-Kostić, Snežana M.; Bogojević, Nebojša M.

(Belgrade : Innovation Center of Faculty of Mechanical Engineering, 2022)

TY  - CONF
AU  - Dojčinović, Marina B.
AU  - Erić Cekić, Olivera A.
AU  - Svetel, Igor
AU  - Ćirić-Kostić, Snežana M.
AU  - Bogojević, Nebojša M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7052
AB  - The present study focuses on the results of cavitation resistance research of samples obtained by the Selective
Laser Sintering technology. The material used was Polyamide powder PA 3200 GF reinforced with glass fibers.
The laser-sintered samples were produced from 100% new and recycled powder mixed with 70% of new
powder. The samples were tested under cavitation conditions using an ultrasonic vibration method with a
stationary sample according to the ASTM G-32 standard. Examination of the morphology of cavitation damage
was investigated by scanning electron microscopy. The change in mass loss during different cavitation times
was measured on the tested samples. The main objective of the research was to determine the validity
application of the tested material in cavitation conditions
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - Programme ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia
T1  - CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING
SP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7052
ER  - 
@conference{
author = "Dojčinović, Marina B. and Erić Cekić, Olivera A. and Svetel, Igor and Ćirić-Kostić, Snežana M. and Bogojević, Nebojša M.",
year = "2022",
abstract = "The present study focuses on the results of cavitation resistance research of samples obtained by the Selective
Laser Sintering technology. The material used was Polyamide powder PA 3200 GF reinforced with glass fibers.
The laser-sintered samples were produced from 100% new and recycled powder mixed with 70% of new
powder. The samples were tested under cavitation conditions using an ultrasonic vibration method with a
stationary sample according to the ASTM G-32 standard. Examination of the morphology of cavitation damage
was investigated by scanning electron microscopy. The change in mass loss during different cavitation times
was measured on the tested samples. The main objective of the research was to determine the validity
application of the tested material in cavitation conditions",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "Programme ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia",
title = "CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING",
pages = "51",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7052"
}
Dojčinović, M. B., Erić Cekić, O. A., Svetel, I., Ćirić-Kostić, S. M.,& Bogojević, N. M.. (2022). CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING. in Programme ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 51.
https://hdl.handle.net/21.15107/rcub_technorep_7052
Dojčinović MB, Erić Cekić OA, Svetel I, Ćirić-Kostić SM, Bogojević NM. CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING. in Programme ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia. 2022;:51.
https://hdl.handle.net/21.15107/rcub_technorep_7052 .
Dojčinović, Marina B., Erić Cekić, Olivera A., Svetel, Igor, Ćirić-Kostić, Snežana M., Bogojević, Nebojša M., "CAVITATION RESISTANCE OF THE MATERIAL PA 3200 GF PRODUCED BY SELECTIVE LASER SINTERING" in Programme ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia (2022):51,
https://hdl.handle.net/21.15107/rcub_technorep_7052 .

Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70

Aleksić, Vujadin; Dojčinović, Marina; Milović, Ljubica; Zečević, Bojana; Maksimović, Ana

(Inženjersko društvo za koroziju, Beograd, 2021)

TY  - JOUR
AU  - Aleksić, Vujadin
AU  - Dojčinović, Marina
AU  - Milović, Ljubica
AU  - Zečević, Bojana
AU  - Maksimović, Ana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5623
AB  - Polomljene epruvete za ispitivanje niskocikličnim zamorom čelika Nionikral 70 (NN-70) osnovnog materijala (OM) i simulirane zone pod uticajem toplote (SZUT) poslužile su NAM za izradu uzoraka za ispitivanje otpornosti na kavitaciju. Za ispitivanje u laboratorijskim uslovima primenjena je ultrazvučna vibraciona metoda kavitacije (metoda stacionarnog uzorka). Uslovi i procedura ispitivanja, priprema uzoraka kao i interpretacija rezultata definisani su standardom ASTM G32. Površine uzoraka čelika NN-70 OM i SZUT bile su izložene dejstvu kavitacije i praćenju oštećenja kroz određeno vreme. Merenje gubitka mase uzoraka na analitičkoj vagi posle određenog vremena omogućilo NAM je određivanje kavitacione brzine kao mere procene otpornosti materijala na dejstvo kavitacije. Za praćenje varijacija u morfologiji površine s promenom vremena ispitivanja primenjena je skenirajuća elektronska mikroskopija (SEM). Na osnovu rezultata ispitivanja otpornosti na kavitaciju u radu su analizirane morfologije oštećenja površina za različita vremena izlaganja dejstvu kavitacije uzoraka OM i SZUT čelika NN-70 kao i mehanizmi koji su doveli do oštećenja površina uzoraka.
AB  - Broken test tubes for low-cycle fatigue testing of Nionicral 70 (NN-70) parent material (PM) steel and simulated heat-affected zones (SHAZ) were used to produce samples for cavitation resistance testing. Ultrasonic vibrational cavitation method (stationary sample method) was applied for testing in laboratory conditions. The test conditions and procedure, sample preparation and interpretation of results are defined by ASTM G32. The surfaces of the NN-70 PM and SHAZ steel samples were exposed to cavitation and damage monitoring over time. Measuring the weight loss of samples on the analytical balance after a certain time allowed us to determine the cavitation velocity as a measure of the material's resistance to the effect of cavitation. Scanning electron microscopy (SEM) was applied to monitor variations in surface morphology with changing test time. On the basis of the results of the cavitation resistance test, the morphologies of the surface damage for different exposure times of the cavitation of PM and SHAZ steel NN-70 samples were analyzed, as well as the mechanisms that led to the damage of the sample surfaces.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70
T1  - Mechanisms and morphologies of cavitation damage of NN 70 steel
EP  - 105
IS  - 2
SP  - 95
VL  - 2021
DO  - 10.5937/zasmat2102095A
ER  - 
@article{
author = "Aleksić, Vujadin and Dojčinović, Marina and Milović, Ljubica and Zečević, Bojana and Maksimović, Ana",
year = "2021",
abstract = "Polomljene epruvete za ispitivanje niskocikličnim zamorom čelika Nionikral 70 (NN-70) osnovnog materijala (OM) i simulirane zone pod uticajem toplote (SZUT) poslužile su NAM za izradu uzoraka za ispitivanje otpornosti na kavitaciju. Za ispitivanje u laboratorijskim uslovima primenjena je ultrazvučna vibraciona metoda kavitacije (metoda stacionarnog uzorka). Uslovi i procedura ispitivanja, priprema uzoraka kao i interpretacija rezultata definisani su standardom ASTM G32. Površine uzoraka čelika NN-70 OM i SZUT bile su izložene dejstvu kavitacije i praćenju oštećenja kroz određeno vreme. Merenje gubitka mase uzoraka na analitičkoj vagi posle određenog vremena omogućilo NAM je određivanje kavitacione brzine kao mere procene otpornosti materijala na dejstvo kavitacije. Za praćenje varijacija u morfologiji površine s promenom vremena ispitivanja primenjena je skenirajuća elektronska mikroskopija (SEM). Na osnovu rezultata ispitivanja otpornosti na kavitaciju u radu su analizirane morfologije oštećenja površina za različita vremena izlaganja dejstvu kavitacije uzoraka OM i SZUT čelika NN-70 kao i mehanizmi koji su doveli do oštećenja površina uzoraka., Broken test tubes for low-cycle fatigue testing of Nionicral 70 (NN-70) parent material (PM) steel and simulated heat-affected zones (SHAZ) were used to produce samples for cavitation resistance testing. Ultrasonic vibrational cavitation method (stationary sample method) was applied for testing in laboratory conditions. The test conditions and procedure, sample preparation and interpretation of results are defined by ASTM G32. The surfaces of the NN-70 PM and SHAZ steel samples were exposed to cavitation and damage monitoring over time. Measuring the weight loss of samples on the analytical balance after a certain time allowed us to determine the cavitation velocity as a measure of the material's resistance to the effect of cavitation. Scanning electron microscopy (SEM) was applied to monitor variations in surface morphology with changing test time. On the basis of the results of the cavitation resistance test, the morphologies of the surface damage for different exposure times of the cavitation of PM and SHAZ steel NN-70 samples were analyzed, as well as the mechanisms that led to the damage of the sample surfaces.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70, Mechanisms and morphologies of cavitation damage of NN 70 steel",
pages = "105-95",
number = "2",
volume = "2021",
doi = "10.5937/zasmat2102095A"
}
Aleksić, V., Dojčinović, M., Milović, L., Zečević, B.,& Maksimović, A.. (2021). Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 2021(2), 95-105.
https://doi.org/10.5937/zasmat2102095A
Aleksić V, Dojčinović M, Milović L, Zečević B, Maksimović A. Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70. in Zaštita materijala. 2021;2021(2):95-105.
doi:10.5937/zasmat2102095A .
Aleksić, Vujadin, Dojčinović, Marina, Milović, Ljubica, Zečević, Bojana, Maksimović, Ana, "Mehanizmi i morfologije kavitacionog oštećenja čelika Nionikral 70" in Zaštita materijala, 2021, no. 2 (2021):95-105,
https://doi.org/10.5937/zasmat2102095A . .
1

Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance

Kovačević, Tihomir; Brzić, Saša; Kalagasidis Krušić, Melina; Nešić, Jovica; Radović, Ljubica; Dojčinović, Marina; Rusmirović, Jelena

(SAGE Publications Ltd., 2021)

TY  - JOUR
AU  - Kovačević, Tihomir
AU  - Brzić, Saša
AU  - Kalagasidis Krušić, Melina
AU  - Nešić, Jovica
AU  - Radović, Ljubica
AU  - Dojčinović, Marina
AU  - Rusmirović, Jelena
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4851
AB  - Two types of polymer waste materials, poly(ethylene terephthalate) (PET) and polycarbonate based Colombian Resin (CR-39), were used for the designing of fully recycled composite materials. Waste PET was employed for the synthesis of thermoset unsaturated polyester resin (UPR), while CR-39 was used as reinforcement in the UPR matrix. Prior to mixing, CR-39 particles were subjected to oxidation and chemical activation using acids/base and ethanol amine, respectively. The effect of the modifier type and variable loading of the activated CR-39 particles on mechanical and dynamic-mechanical properties of the corresponding composites was investigated. The greatest improvement in the tensile and flexural strength of UPR resin was achieved with the composite containing 0.5 wt% of amine activated filler particles, 96.0% and 62.2%, respectively. The Arrhenius equation was used to calculate the activation energy for glass transition from dynamic mechanical properties measured at various frequencies. The activation energy of the main transition for UPR resin and composites were calculated to be 173 and 350 kJ center dot mol(-1) indicating that reinforcement results in an increase in the energy barrier to macromolecules viscoelastic relaxation. In addition, erosion resistance was studied during exposure of samples to cavitation tests. According to the obtained results, these materials can be applied in construction and mining industry.
PB  - SAGE Publications Ltd.
T2  - Journal of Composite Materials
T1  - Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance
EP  - 4220
IS  - 28
SP  - 4207
VL  - 55
DO  - 10.1177/00219983211037045
ER  - 
@article{
author = "Kovačević, Tihomir and Brzić, Saša and Kalagasidis Krušić, Melina and Nešić, Jovica and Radović, Ljubica and Dojčinović, Marina and Rusmirović, Jelena",
year = "2021",
abstract = "Two types of polymer waste materials, poly(ethylene terephthalate) (PET) and polycarbonate based Colombian Resin (CR-39), were used for the designing of fully recycled composite materials. Waste PET was employed for the synthesis of thermoset unsaturated polyester resin (UPR), while CR-39 was used as reinforcement in the UPR matrix. Prior to mixing, CR-39 particles were subjected to oxidation and chemical activation using acids/base and ethanol amine, respectively. The effect of the modifier type and variable loading of the activated CR-39 particles on mechanical and dynamic-mechanical properties of the corresponding composites was investigated. The greatest improvement in the tensile and flexural strength of UPR resin was achieved with the composite containing 0.5 wt% of amine activated filler particles, 96.0% and 62.2%, respectively. The Arrhenius equation was used to calculate the activation energy for glass transition from dynamic mechanical properties measured at various frequencies. The activation energy of the main transition for UPR resin and composites were calculated to be 173 and 350 kJ center dot mol(-1) indicating that reinforcement results in an increase in the energy barrier to macromolecules viscoelastic relaxation. In addition, erosion resistance was studied during exposure of samples to cavitation tests. According to the obtained results, these materials can be applied in construction and mining industry.",
publisher = "SAGE Publications Ltd.",
journal = "Journal of Composite Materials",
title = "Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance",
pages = "4220-4207",
number = "28",
volume = "55",
doi = "10.1177/00219983211037045"
}
Kovačević, T., Brzić, S., Kalagasidis Krušić, M., Nešić, J., Radović, L., Dojčinović, M.,& Rusmirović, J.. (2021). Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance. in Journal of Composite Materials
SAGE Publications Ltd.., 55(28), 4207-4220.
https://doi.org/10.1177/00219983211037045
Kovačević T, Brzić S, Kalagasidis Krušić M, Nešić J, Radović L, Dojčinović M, Rusmirović J. Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance. in Journal of Composite Materials. 2021;55(28):4207-4220.
doi:10.1177/00219983211037045 .
Kovačević, Tihomir, Brzić, Saša, Kalagasidis Krušić, Melina, Nešić, Jovica, Radović, Ljubica, Dojčinović, Marina, Rusmirović, Jelena, "Reuse potential of functionalized thermoplastic waste as reinforcement for thermoset polymers: Mechanical properties and erosion resistance" in Journal of Composite Materials, 55, no. 28 (2021):4207-4220,
https://doi.org/10.1177/00219983211037045 . .
2
2

Influence of the polymer matrix type on cavitation resistance of composites

Dojčinović, Marina; Pavlović, Marko; Jezdimirović, Slađana; Purić, Branka; Cvetković, Aleksandar

(Banja Luka : Faculty of Mechanical Engineering, 2021)

TY  - CONF
AU  - Dojčinović, Marina
AU  - Pavlović, Marko
AU  - Jezdimirović, Slađana
AU  - Purić, Branka
AU  - Cvetković, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7056
AB  - Cavitation resistance of polymer matrix/basalt powder composites was determined in this work.
Two types of composites were tested: epoxy resin / basalt powder composite and polyester resin /
basalt powder composite. In both cases, a basalt powder was used as reinforcement in the resin
(grain size 20µm, in the amount of 15 wt%). An ultrasonic vibration method with a stationary
sample was used to test the cavitation resistance of composites in laboratory conditions.The change 
in sample mass with test time was monitored to define cavitation rate. Scanning electron microscopy 
was used to monitor the morphology of composites surface damage.
PB  - Banja Luka : Faculty of Mechanical Engineering
C3  - Proceedings : DEMI 2021 / 15th international conference on accomplishments in mechanical and industrial engineering, Banja Luka, May 2021
T1  - Influence of the polymer matrix type on cavitation resistance of composites
EP  - 386
SP  - 383
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7056
ER  - 
@conference{
author = "Dojčinović, Marina and Pavlović, Marko and Jezdimirović, Slađana and Purić, Branka and Cvetković, Aleksandar",
year = "2021",
abstract = "Cavitation resistance of polymer matrix/basalt powder composites was determined in this work.
Two types of composites were tested: epoxy resin / basalt powder composite and polyester resin /
basalt powder composite. In both cases, a basalt powder was used as reinforcement in the resin
(grain size 20µm, in the amount of 15 wt%). An ultrasonic vibration method with a stationary
sample was used to test the cavitation resistance of composites in laboratory conditions.The change 
in sample mass with test time was monitored to define cavitation rate. Scanning electron microscopy 
was used to monitor the morphology of composites surface damage.",
publisher = "Banja Luka : Faculty of Mechanical Engineering",
journal = "Proceedings : DEMI 2021 / 15th international conference on accomplishments in mechanical and industrial engineering, Banja Luka, May 2021",
title = "Influence of the polymer matrix type on cavitation resistance of composites",
pages = "386-383",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7056"
}
Dojčinović, M., Pavlović, M., Jezdimirović, S., Purić, B.,& Cvetković, A.. (2021). Influence of the polymer matrix type on cavitation resistance of composites. in Proceedings : DEMI 2021 / 15th international conference on accomplishments in mechanical and industrial engineering, Banja Luka, May 2021
Banja Luka : Faculty of Mechanical Engineering., 383-386.
https://hdl.handle.net/21.15107/rcub_technorep_7056
Dojčinović M, Pavlović M, Jezdimirović S, Purić B, Cvetković A. Influence of the polymer matrix type on cavitation resistance of composites. in Proceedings : DEMI 2021 / 15th international conference on accomplishments in mechanical and industrial engineering, Banja Luka, May 2021. 2021;:383-386.
https://hdl.handle.net/21.15107/rcub_technorep_7056 .
Dojčinović, Marina, Pavlović, Marko, Jezdimirović, Slađana, Purić, Branka, Cvetković, Aleksandar, "Influence of the polymer matrix type on cavitation resistance of composites" in Proceedings : DEMI 2021 / 15th international conference on accomplishments in mechanical and industrial engineering, Banja Luka, May 2021 (2021):383-386,
https://hdl.handle.net/21.15107/rcub_technorep_7056 .

Influence of the polymer matrix type on cavitation resistance of composites

Dojčinović, Marina; Pavlović, Marko; Jezdimirović, Slađana; Purić, Branka; Cvetković, Aleksandar

(University of Novi Sad, Faculty of Technical Sciences, 2021)

TY  - JOUR
AU  - Dojčinović, Marina
AU  - Pavlović, Marko
AU  - Jezdimirović, Slađana
AU  - Purić, Branka
AU  - Cvetković, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7060
AB  - Cavitation resistance of polymer matrix / basalt powder composites was determined in this work. Two types of composites
were tested: epoxy resin / basalt powder composite and polyester resin / basalt powder composite. In both cases, a basalt
powder was used as reinforcement in the resin (grain size 20μm, in the amount of 15 wt%). An ultrasonic vibration method
with a stationary sample was used to test the cavitation resistance of composites in laboratory conditions. The change in
sample mass with test time was monitored to define cavitation rate. Scanning electron microscopy was used to monitor the
morphology of composites surface damage.
PB  - University of Novi Sad, Faculty of Technical Sciences
T2  - Advanced Technologies & Materials
T1  - Influence of the polymer matrix type on cavitation resistance of composites
EP  - 34
IS  - 1
SP  - 31
VL  - 46
DO  - 10.24867/ATM-2021-1-006
ER  - 
@article{
author = "Dojčinović, Marina and Pavlović, Marko and Jezdimirović, Slađana and Purić, Branka and Cvetković, Aleksandar",
year = "2021",
abstract = "Cavitation resistance of polymer matrix / basalt powder composites was determined in this work. Two types of composites
were tested: epoxy resin / basalt powder composite and polyester resin / basalt powder composite. In both cases, a basalt
powder was used as reinforcement in the resin (grain size 20μm, in the amount of 15 wt%). An ultrasonic vibration method
with a stationary sample was used to test the cavitation resistance of composites in laboratory conditions. The change in
sample mass with test time was monitored to define cavitation rate. Scanning electron microscopy was used to monitor the
morphology of composites surface damage.",
publisher = "University of Novi Sad, Faculty of Technical Sciences",
journal = "Advanced Technologies & Materials",
title = "Influence of the polymer matrix type on cavitation resistance of composites",
pages = "34-31",
number = "1",
volume = "46",
doi = "10.24867/ATM-2021-1-006"
}
Dojčinović, M., Pavlović, M., Jezdimirović, S., Purić, B.,& Cvetković, A.. (2021). Influence of the polymer matrix type on cavitation resistance of composites. in Advanced Technologies & Materials
University of Novi Sad, Faculty of Technical Sciences., 46(1), 31-34.
https://doi.org/10.24867/ATM-2021-1-006
Dojčinović M, Pavlović M, Jezdimirović S, Purić B, Cvetković A. Influence of the polymer matrix type on cavitation resistance of composites. in Advanced Technologies & Materials. 2021;46(1):31-34.
doi:10.24867/ATM-2021-1-006 .
Dojčinović, Marina, Pavlović, Marko, Jezdimirović, Slađana, Purić, Branka, Cvetković, Aleksandar, "Influence of the polymer matrix type on cavitation resistance of composites" in Advanced Technologies & Materials, 46, no. 1 (2021):31-34,
https://doi.org/10.24867/ATM-2021-1-006 . .

SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS

Pavlović, Marko; Trumbulović, Ljiljana; Dojčinović, Marina; Čeganjac, Zoran

(Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice, 2021)

TY  - CONF
AU  - Pavlović, Marko
AU  - Trumbulović, Ljiljana
AU  - Dojčinović, Marina
AU  - Čeganjac, Zoran
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7061
AB  - This paper presents the results of research on coatings based on basalt for use in Lost foam casting process. These
coatings have not been used in practice so far. The coating compositions and the synthesis process were studied. Test series of
casting aluminum alloy castings were made. Positive results of testing the surface, structure and properties of the obtained castings
are shown. The possibility of using basalt for the synthesis of coatings in foundry will enable great savings in the production of
castings. This is significant considering that Serbia has significant reserves of this type of mineral raw materials.
PB  - Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice
C3  - Conference Proceedings / 12th International Conference Science and Higher Education in Function of Sustainable Development - SED 2021, 8th October 2021, Užice, Serbia
T1  - SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS
EP  - 26
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7061
ER  - 
@conference{
author = "Pavlović, Marko and Trumbulović, Ljiljana and Dojčinović, Marina and Čeganjac, Zoran",
year = "2021",
abstract = "This paper presents the results of research on coatings based on basalt for use in Lost foam casting process. These
coatings have not been used in practice so far. The coating compositions and the synthesis process were studied. Test series of
casting aluminum alloy castings were made. Positive results of testing the surface, structure and properties of the obtained castings
are shown. The possibility of using basalt for the synthesis of coatings in foundry will enable great savings in the production of
castings. This is significant considering that Serbia has significant reserves of this type of mineral raw materials.",
publisher = "Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice",
journal = "Conference Proceedings / 12th International Conference Science and Higher Education in Function of Sustainable Development - SED 2021, 8th October 2021, Užice, Serbia",
title = "SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS",
pages = "26-1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7061"
}
Pavlović, M., Trumbulović, L., Dojčinović, M.,& Čeganjac, Z.. (2021). SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS. in Conference Proceedings / 12th International Conference Science and Higher Education in Function of Sustainable Development - SED 2021, 8th October 2021, Užice, Serbia
Užice : Akademija strukovnih studija "Zapadna Srbija", Odsek Užice., 1-26.
https://hdl.handle.net/21.15107/rcub_technorep_7061
Pavlović M, Trumbulović L, Dojčinović M, Čeganjac Z. SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS. in Conference Proceedings / 12th International Conference Science and Higher Education in Function of Sustainable Development - SED 2021, 8th October 2021, Užice, Serbia. 2021;:1-26.
https://hdl.handle.net/21.15107/rcub_technorep_7061 .
Pavlović, Marko, Trumbulović, Ljiljana, Dojčinović, Marina, Čeganjac, Zoran, "SYNTHESIS OF NEW REFRACTORY COATINGS BASED ON BASALT FOR FOUNDRY APPLICATIONS" in Conference Proceedings / 12th International Conference Science and Higher Education in Function of Sustainable Development - SED 2021, 8th October 2021, Užice, Serbia (2021):1-26,
https://hdl.handle.net/21.15107/rcub_technorep_7061 .

OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI

Andrić, Ljubiša; Dojčinović, Marina; Jezdimirović, Slađana; Purić, Branka; Pavlović, Marko; Cvetković, Aleksandar

(Zenica : Faculty of Mechanical Engineering, 2021)

TY  - CONF
AU  - Andrić, Ljubiša
AU  - Dojčinović, Marina
AU  - Jezdimirović, Slađana
AU  - Purić, Branka
AU  - Pavlović, Marko
AU  - Cvetković, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7058
AB  - Pirofilit je mineralna sirovina pogodna za izradu šireg spektra proizvoda i primenu u različitim granama privrede (građevinarstvu, poljoprivredi, industriji hartije). Tehnologija prerade stena pirofilita je ekološki čista, a proizvodi dobijeni tehnološkom preradom pirofilita nisu kancerogeni. 
U radu su ispitivani uzorci pirofilita sinterovani na temperaturi 1150 ºC. Polazni uzorak pirofilita  dobijen je iz ležišta Parsović-BiH. Eksperimentalno je određena otpornost ovog vatrostalnog uzorka na dejstvo kavitacije primenom ultrazvučne vibracione metode sa stacionarnim uzorkom prema standardu ASTM G32. Na osnovu vrednosti kavitacione brzine i analize morfologije oštećenja površine određena je otpornost na dejstvo kavitacije ispitivanog uzorka na bazi pirofilita i procenjena mogućnost njihove primene u hidrodinamičkim uslovima eksploatacije u kojima se očekuje pojava kavitacije.
AB  - Pyrophyllite is a mineral raw material suitable for the production of a wider range of products and application in various branches of the economy (construction, agriculture, paper industry). 
The technology of pyrophyllite rock processing is ecologically clean, and the products obtained by technological processing of pyrophyllite are not carcinogenic. The paper tested pyrophyllite sample sintered at temperaturi 1150 ºC. Initial sample of pyrophyllite were obtained from the Parsović-BiH deposit. The resistance of these refractory sample to the action of cavitation was determined experimentally using the ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Based on the value of cavitation velocity and analysis of surface damage morphology, the resistance to cavitation of these sample based on pyrophyllite was determined and the possibility of their application in hydrodynamic operating conditions in which cavitation is expected was asessed.
PB  - Zenica : Faculty of Mechanical Engineering
C3  - Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021
T1  - OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI
T1  - QUALITY ASSESSMENT OF SINTERED PYROPHYLLITE USING THE METHOD OF CAVITATION RESISTANCE TESTING
EP  - 100
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7058
ER  - 
@conference{
author = "Andrić, Ljubiša and Dojčinović, Marina and Jezdimirović, Slađana and Purić, Branka and Pavlović, Marko and Cvetković, Aleksandar",
year = "2021",
abstract = "Pirofilit je mineralna sirovina pogodna za izradu šireg spektra proizvoda i primenu u različitim granama privrede (građevinarstvu, poljoprivredi, industriji hartije). Tehnologija prerade stena pirofilita je ekološki čista, a proizvodi dobijeni tehnološkom preradom pirofilita nisu kancerogeni. 
U radu su ispitivani uzorci pirofilita sinterovani na temperaturi 1150 ºC. Polazni uzorak pirofilita  dobijen je iz ležišta Parsović-BiH. Eksperimentalno je određena otpornost ovog vatrostalnog uzorka na dejstvo kavitacije primenom ultrazvučne vibracione metode sa stacionarnim uzorkom prema standardu ASTM G32. Na osnovu vrednosti kavitacione brzine i analize morfologije oštećenja površine određena je otpornost na dejstvo kavitacije ispitivanog uzorka na bazi pirofilita i procenjena mogućnost njihove primene u hidrodinamičkim uslovima eksploatacije u kojima se očekuje pojava kavitacije., Pyrophyllite is a mineral raw material suitable for the production of a wider range of products and application in various branches of the economy (construction, agriculture, paper industry). 
The technology of pyrophyllite rock processing is ecologically clean, and the products obtained by technological processing of pyrophyllite are not carcinogenic. The paper tested pyrophyllite sample sintered at temperaturi 1150 ºC. Initial sample of pyrophyllite were obtained from the Parsović-BiH deposit. The resistance of these refractory sample to the action of cavitation was determined experimentally using the ultrasonic vibration method with a stationary sample according to the ASTM G32 standard. Based on the value of cavitation velocity and analysis of surface damage morphology, the resistance to cavitation of these sample based on pyrophyllite was determined and the possibility of their application in hydrodynamic operating conditions in which cavitation is expected was asessed.",
publisher = "Zenica : Faculty of Mechanical Engineering",
journal = "Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021",
title = "OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI, QUALITY ASSESSMENT OF SINTERED PYROPHYLLITE USING THE METHOD OF CAVITATION RESISTANCE TESTING",
pages = "100-95",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7058"
}
Andrić, L., Dojčinović, M., Jezdimirović, S., Purić, B., Pavlović, M.,& Cvetković, A.. (2021). OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI. in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021
Zenica : Faculty of Mechanical Engineering., 95-100.
https://hdl.handle.net/21.15107/rcub_technorep_7058
Andrić L, Dojčinović M, Jezdimirović S, Purić B, Pavlović M, Cvetković A. OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI. in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021. 2021;:95-100.
https://hdl.handle.net/21.15107/rcub_technorep_7058 .
Andrić, Ljubiša, Dojčinović, Marina, Jezdimirović, Slađana, Purić, Branka, Pavlović, Marko, Cvetković, Aleksandar, "OCENA KVALITETA SINTEROVANOG PIROFILITA PRIMENOM METODE ISPITIVANJA KAVITACIONE OTPORNOSTI" in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021 (2021):95-100,
https://hdl.handle.net/21.15107/rcub_technorep_7058 .

ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA

Dojčinović, Marina; Purić, Branka; Jezdimirović, Slađana; Kovačević, Andrej; Pavlović, Marko

(Zenica : Faculty of Mechanical Engineering, 2021)

TY  - CONF
AU  - Dojčinović, Marina
AU  - Purić, Branka
AU  - Jezdimirović, Slađana
AU  - Kovačević, Andrej
AU  - Pavlović, Marko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7059
AB  - U radu je analizirana morfologija kavitacionog oštećenja martenzitnog nerđajućeg čelika. Za ispitivanje otpornosti na dejstvo kavitacije, u laboratorijskim uslovima je primenjena ultrazvučna vibraciona metoda sa stacionarnim uzorkom. Praćenjem promene mase uzorka u funkciji vremena dejstva kavitacije određena je kavitaciona brzina čelika, kao mera otpornosti čelika na dejstvo kavitacije. Tokom ispitivanja primenjena je skenirajuća elektronska mikroskopija (SEM) koja je omogućila analizu morfologije kavitacionog oštećenja ovog materijala. Dobijeni rezultati ispitivanja pokazali su visoku otpornost martenzitnog nerđajućeg čelika na dejstvo kavitacije.
AB  - The morphology of cavitation damage of martensitic stainless steel was analyzed in this paper. Ultrasonic vibration method with a stationary sample was applied for cavitation resistance testing in laboratory conditions. By monitoring the change in the mass of the sample as a function of the time of cavitation action, the cavitation rate of steel was determined as a measure of the cavitation resistance of steel. During the examination, scanning electron microscopy (SEM) was applied, which enabled the analysis of the morphology of cavitation damage of this material. The obtained test results showed high cavitation resistance of martensitic stainless steel.
PB  - Zenica : Faculty of Mechanical Engineering
C3  - Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021
T1  - ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA
T1  - ANALYSIS OF CAVITATION DAMAGE MORPHOLOGY OF MARTENSITIC STAINLESS STEEL
EP  - 176
SP  - 171
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7059
ER  - 
@conference{
author = "Dojčinović, Marina and Purić, Branka and Jezdimirović, Slađana and Kovačević, Andrej and Pavlović, Marko",
year = "2021",
abstract = "U radu je analizirana morfologija kavitacionog oštećenja martenzitnog nerđajućeg čelika. Za ispitivanje otpornosti na dejstvo kavitacije, u laboratorijskim uslovima je primenjena ultrazvučna vibraciona metoda sa stacionarnim uzorkom. Praćenjem promene mase uzorka u funkciji vremena dejstva kavitacije određena je kavitaciona brzina čelika, kao mera otpornosti čelika na dejstvo kavitacije. Tokom ispitivanja primenjena je skenirajuća elektronska mikroskopija (SEM) koja je omogućila analizu morfologije kavitacionog oštećenja ovog materijala. Dobijeni rezultati ispitivanja pokazali su visoku otpornost martenzitnog nerđajućeg čelika na dejstvo kavitacije., The morphology of cavitation damage of martensitic stainless steel was analyzed in this paper. Ultrasonic vibration method with a stationary sample was applied for cavitation resistance testing in laboratory conditions. By monitoring the change in the mass of the sample as a function of the time of cavitation action, the cavitation rate of steel was determined as a measure of the cavitation resistance of steel. During the examination, scanning electron microscopy (SEM) was applied, which enabled the analysis of the morphology of cavitation damage of this material. The obtained test results showed high cavitation resistance of martensitic stainless steel.",
publisher = "Zenica : Faculty of Mechanical Engineering",
journal = "Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021",
title = "ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA, ANALYSIS OF CAVITATION DAMAGE MORPHOLOGY OF MARTENSITIC STAINLESS STEEL",
pages = "176-171",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7059"
}
Dojčinović, M., Purić, B., Jezdimirović, S., Kovačević, A.,& Pavlović, M.. (2021). ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA. in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021
Zenica : Faculty of Mechanical Engineering., 171-176.
https://hdl.handle.net/21.15107/rcub_technorep_7059
Dojčinović M, Purić B, Jezdimirović S, Kovačević A, Pavlović M. ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA. in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021. 2021;:171-176.
https://hdl.handle.net/21.15107/rcub_technorep_7059 .
Dojčinović, Marina, Purić, Branka, Jezdimirović, Slađana, Kovačević, Andrej, Pavlović, Marko, "ANALIZA MORFOLOGIJE KAVITACIONOG OŠTEĆENJA MARTENZITNOG NERĐAJUĆEG ČELIKA" in Quality 2021 : proceedings / 12th Research/expert Conference with international participation, Neum, Bosnia and Herzegovina, 16-19 June 2021 (2021):171-176,
https://hdl.handle.net/21.15107/rcub_technorep_7059 .

Cavitation resistance of basalt-based protective coatings and epoxy system

Pavlovic, Marko; Cvetkovic, Aleksandar; Dojčinović, Marina; Trumbulovic, Ljiljana; Milovanovic, Aleksandar

(2021)

TY  - JOUR
AU  - Pavlovic, Marko
AU  - Cvetkovic, Aleksandar
AU  - Dojčinović, Marina
AU  - Trumbulovic, Ljiljana
AU  - Milovanovic, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4813
AB  - The paper presents the results of synthesis and characterization of new refractory coatings based on basalt and epoxy system. Coatings are intended to protect the surfaces of parts of equipment and various structures in civil and mechanical engineering and metallurgy which are exposed to wear, corrosion, or cavitation during exploitation. Coating composition, procedures for preparation of components from coating composition, synthesis procedures, and application of coatings are investigated. Several methods are used to characterize the coating: X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), optical microscopy and ultrasonic vibration method with a stationary sample according to ASTM G32 standard. Material resistance to the action of cavitation is determined using the ultrasonic method. In order to monitor the formation and development of surface damage on samples under the effect of cavitation, the morphology of surface coating damage is analysed using scanning electron microscopy. Results show high resistance of the tested basalt-based coatings under the action of cavitation, with low cavitation rate (0.04 mg/min), low mass losses of coating and minor surface damage during exposure. This indicates the possibility of applying this type of refractory coating for the protection of various metallic and non-metallic structures in conditions of wear and cavitation.
T2  - Structural Integrity and Life-Integritet I Vek Konstrukcija
T1  - Cavitation resistance of basalt-based protective coatings and epoxy system
EP  - 189
IS  - 2
SP  - 185
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4813
ER  - 
@article{
author = "Pavlovic, Marko and Cvetkovic, Aleksandar and Dojčinović, Marina and Trumbulovic, Ljiljana and Milovanovic, Aleksandar",
year = "2021",
abstract = "The paper presents the results of synthesis and characterization of new refractory coatings based on basalt and epoxy system. Coatings are intended to protect the surfaces of parts of equipment and various structures in civil and mechanical engineering and metallurgy which are exposed to wear, corrosion, or cavitation during exploitation. Coating composition, procedures for preparation of components from coating composition, synthesis procedures, and application of coatings are investigated. Several methods are used to characterize the coating: X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), optical microscopy and ultrasonic vibration method with a stationary sample according to ASTM G32 standard. Material resistance to the action of cavitation is determined using the ultrasonic method. In order to monitor the formation and development of surface damage on samples under the effect of cavitation, the morphology of surface coating damage is analysed using scanning electron microscopy. Results show high resistance of the tested basalt-based coatings under the action of cavitation, with low cavitation rate (0.04 mg/min), low mass losses of coating and minor surface damage during exposure. This indicates the possibility of applying this type of refractory coating for the protection of various metallic and non-metallic structures in conditions of wear and cavitation.",
journal = "Structural Integrity and Life-Integritet I Vek Konstrukcija",
title = "Cavitation resistance of basalt-based protective coatings and epoxy system",
pages = "189-185",
number = "2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4813"
}
Pavlovic, M., Cvetkovic, A., Dojčinović, M., Trumbulovic, L.,& Milovanovic, A.. (2021). Cavitation resistance of basalt-based protective coatings and epoxy system. in Structural Integrity and Life-Integritet I Vek Konstrukcija, 21(2), 185-189.
https://hdl.handle.net/21.15107/rcub_technorep_4813
Pavlovic M, Cvetkovic A, Dojčinović M, Trumbulovic L, Milovanovic A. Cavitation resistance of basalt-based protective coatings and epoxy system. in Structural Integrity and Life-Integritet I Vek Konstrukcija. 2021;21(2):185-189.
https://hdl.handle.net/21.15107/rcub_technorep_4813 .
Pavlovic, Marko, Cvetkovic, Aleksandar, Dojčinović, Marina, Trumbulovic, Ljiljana, Milovanovic, Aleksandar, "Cavitation resistance of basalt-based protective coatings and epoxy system" in Structural Integrity and Life-Integritet I Vek Konstrukcija, 21, no. 2 (2021):185-189,
https://hdl.handle.net/21.15107/rcub_technorep_4813 .

Cavitation Properties of Rendering Mortars with Micro Silica Addition

Terzic, Anja; Dojčinović, Marina; Milicic, Ljiljana; Stojanovic, Jovica; Radojevic, Zagorka

(2021)

TY  - JOUR
AU  - Terzic, Anja
AU  - Dojčinović, Marina
AU  - Milicic, Ljiljana
AU  - Stojanovic, Jovica
AU  - Radojevic, Zagorka
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4958
AB  - Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.
T2  - Science of Sintering
T1  - Cavitation Properties of Rendering Mortars with Micro Silica Addition
EP  - 459
IS  - 4
SP  - 445
VL  - 53
DO  - 10.2298/SOS2104445T
ER  - 
@article{
author = "Terzic, Anja and Dojčinović, Marina and Milicic, Ljiljana and Stojanovic, Jovica and Radojevic, Zagorka",
year = "2021",
abstract = "Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.",
journal = "Science of Sintering",
title = "Cavitation Properties of Rendering Mortars with Micro Silica Addition",
pages = "459-445",
number = "4",
volume = "53",
doi = "10.2298/SOS2104445T"
}
Terzic, A., Dojčinović, M., Milicic, L., Stojanovic, J.,& Radojevic, Z.. (2021). Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering, 53(4), 445-459.
https://doi.org/10.2298/SOS2104445T
Terzic A, Dojčinović M, Milicic L, Stojanovic J, Radojevic Z. Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering. 2021;53(4):445-459.
doi:10.2298/SOS2104445T .
Terzic, Anja, Dojčinović, Marina, Milicic, Ljiljana, Stojanovic, Jovica, Radojevic, Zagorka, "Cavitation Properties of Rendering Mortars with Micro Silica Addition" in Science of Sintering, 53, no. 4 (2021):445-459,
https://doi.org/10.2298/SOS2104445T . .
5
5

Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita

Andrić, Ljubiša; Pavlović, Marko; Dojčinović, Marina; Radulović, Dragan

(Inženjersko društvo za koroziju, 2021)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Pavlović, Marko
AU  - Dojčinović, Marina
AU  - Radulović, Dragan
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5625
AB  - U radu je ispitivana otpornost pod dejstvom kavitacije uzoraka sinterovanog pirofilita. Polazni
uzorak pirofilita iz ležišta Parsović- BiH mleven je u vibracionom mlinu na granulaciju 20μm,
presovan je i sinterovan na temperaturama (ºC): 1000; 1100; 1200. Za procenu kavitacione
otpornosti praćena je promena mase uzorka u funkciji vremena delovanja kavitacije. Primenjena je
ultrazvučna vibraciona metoda sa stacionarnim uzorkom prema standardu ASTM G32. Izračunate
su kavitacione brzine za sve uzorke, kao osnovni pokazatelj otpornosti materijala pod dejstvom
kavitacije. Promena morfologije površine uzorka sa vremenom ispitivanja praćena je primenom
skenirajuće elektronske mikroskopije. Na osnovu vrednosti kavitacione brzine i analize morfologije
oštećenja površine određena je kavitaciona otpornost ispitivanih uzoraka na bazi pirofilita. Dobijeni
rezultati ukazuju da uzorci sinterovanog pirofilita imaju zadovoljavajuću otpornost na dejstvo
kavitacije i mogu se primeniti u uslovima manjih kavitacionih opterećenja.
AB  - The resistance under the action of cavitation of sintered pyrophillite samples was investigated. The initial sample of pyrophillite from the Parsovic-BiH deposit was ground a vibrating mill to a granulation of 20 mμ, pressed and sintered at temperatures (⁰C): 100; 1100; 1200. To assess cavitation resistance, the change in sample mass as a function of cavitation time was monitored. The cavitation erosion test was performed using the ultrasonic vibratory cavitation test method according to the ASTM G-32 standard. Cavitation velocites were calculated for all samples, as a basic indicator of the resistance of the material under the action of cavitation. The change in the morphology of the surface with the test time was followed by scanning electron microscopy. Based on the values of cavitation velocity and analysis of the surface damage morphology, the cavitation resistance of the tested samples based on pyrophillite was determined. The obtained results indicate that the samples of sintered pyrophillite have satisfactory resistance to the action of cavitation and be applied in conditions of lower cavitation loads.
PB  - Inženjersko društvo za koroziju
T2  - Zaštita materijala
T1  - Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita
T1  - Determination of resistance to cavitation of pyrophyllite samples
EP  - 134
IS  - 2
SP  - 126
VL  - 62
DO  - 10.5937/zasmat2102126A
ER  - 
@article{
author = "Andrić, Ljubiša and Pavlović, Marko and Dojčinović, Marina and Radulović, Dragan",
year = "2021",
abstract = "U radu je ispitivana otpornost pod dejstvom kavitacije uzoraka sinterovanog pirofilita. Polazni
uzorak pirofilita iz ležišta Parsović- BiH mleven je u vibracionom mlinu na granulaciju 20μm,
presovan je i sinterovan na temperaturama (ºC): 1000; 1100; 1200. Za procenu kavitacione
otpornosti praćena je promena mase uzorka u funkciji vremena delovanja kavitacije. Primenjena je
ultrazvučna vibraciona metoda sa stacionarnim uzorkom prema standardu ASTM G32. Izračunate
su kavitacione brzine za sve uzorke, kao osnovni pokazatelj otpornosti materijala pod dejstvom
kavitacije. Promena morfologije površine uzorka sa vremenom ispitivanja praćena je primenom
skenirajuće elektronske mikroskopije. Na osnovu vrednosti kavitacione brzine i analize morfologije
oštećenja površine određena je kavitaciona otpornost ispitivanih uzoraka na bazi pirofilita. Dobijeni
rezultati ukazuju da uzorci sinterovanog pirofilita imaju zadovoljavajuću otpornost na dejstvo
kavitacije i mogu se primeniti u uslovima manjih kavitacionih opterećenja., The resistance under the action of cavitation of sintered pyrophillite samples was investigated. The initial sample of pyrophillite from the Parsovic-BiH deposit was ground a vibrating mill to a granulation of 20 mμ, pressed and sintered at temperatures (⁰C): 100; 1100; 1200. To assess cavitation resistance, the change in sample mass as a function of cavitation time was monitored. The cavitation erosion test was performed using the ultrasonic vibratory cavitation test method according to the ASTM G-32 standard. Cavitation velocites were calculated for all samples, as a basic indicator of the resistance of the material under the action of cavitation. The change in the morphology of the surface with the test time was followed by scanning electron microscopy. Based on the values of cavitation velocity and analysis of the surface damage morphology, the cavitation resistance of the tested samples based on pyrophillite was determined. The obtained results indicate that the samples of sintered pyrophillite have satisfactory resistance to the action of cavitation and be applied in conditions of lower cavitation loads.",
publisher = "Inženjersko društvo za koroziju",
journal = "Zaštita materijala",
title = "Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita, Determination of resistance to cavitation of pyrophyllite samples",
pages = "134-126",
number = "2",
volume = "62",
doi = "10.5937/zasmat2102126A"
}
Andrić, L., Pavlović, M., Dojčinović, M.,& Radulović, D.. (2021). Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita. in Zaštita materijala
Inženjersko društvo za koroziju., 62(2), 126-134.
https://doi.org/10.5937/zasmat2102126A
Andrić L, Pavlović M, Dojčinović M, Radulović D. Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita. in Zaštita materijala. 2021;62(2):126-134.
doi:10.5937/zasmat2102126A .
Andrić, Ljubiša, Pavlović, Marko, Dojčinović, Marina, Radulović, Dragan, "Određivanje otpornosti na dejstvo kavitacije uzoraka pirofilita" in Zaštita materijala, 62, no. 2 (2021):126-134,
https://doi.org/10.5937/zasmat2102126A . .

Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance

Ashor, Almabrok A.; Vuksanović, Marija M.; Tomić, Nataša; Petrović, Miloš; Dojčinović, Marina; Volkov-Husović, Tatjana; Radojević, Vesna; Jančić-Heinemann, Radmila

(Springer, New York, 2020)

TY  - JOUR
AU  - Ashor, Almabrok A.
AU  - Vuksanović, Marija M.
AU  - Tomić, Nataša
AU  - Petrović, Miloš
AU  - Dojčinović, Marina
AU  - Volkov-Husović, Tatjana
AU  - Radojević, Vesna
AU  - Jančić-Heinemann, Radmila
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4544
AB  - Composites based on poly(methyl methacrylate), dimethyl itaconate matrix and alumina particles were prepared. Ferrous oxide-doped alumina particles (Al2O3Fe) and commercial alumina nanoparticles (Al(2)O(3)n) modified with (3-aminopropyl)trimethoxysilane (AM) and methyl esters of linseed oil fatty acids (biodiesel-BD) were used as reinforcement. The mechanical properties of the prepared composites, containing 1, 3 and 5 wt% of surface-modified alumina particles, are compared to a neat polymer matrix. The particles were characterized by single-beam Fourier transform infrared spectroscopy, thermogravimetry and differential scanning calorimetry. The mechanical properties of the composites were determined by micro-Vickers hardness and impact testing. The morphology of the surface of the composites exposed to cavitation was observed through a field emission scanning electron microscope. AFM analysis was used to compare surface features seen using the SEM and to interpret the surface degradation properties. The hardness, cavitation resistance and high-impact energy resistance of the composites are better in the case of AM surface modification of alumina fillers, but biodiesel modified particles have comparable mechanical properties and a stabilized Al-O-Si bond that could be important when a composite is exposed to humidity or a wet environment.
PB  - Springer, New York
T2  - Polymer Bulletin
T1  - Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance
EP  - 3620
IS  - 7
SP  - 3603
VL  - 77
DO  - 10.1007/s00289-019-02923-8
ER  - 
@article{
author = "Ashor, Almabrok A. and Vuksanović, Marija M. and Tomić, Nataša and Petrović, Miloš and Dojčinović, Marina and Volkov-Husović, Tatjana and Radojević, Vesna and Jančić-Heinemann, Radmila",
year = "2020",
abstract = "Composites based on poly(methyl methacrylate), dimethyl itaconate matrix and alumina particles were prepared. Ferrous oxide-doped alumina particles (Al2O3Fe) and commercial alumina nanoparticles (Al(2)O(3)n) modified with (3-aminopropyl)trimethoxysilane (AM) and methyl esters of linseed oil fatty acids (biodiesel-BD) were used as reinforcement. The mechanical properties of the prepared composites, containing 1, 3 and 5 wt% of surface-modified alumina particles, are compared to a neat polymer matrix. The particles were characterized by single-beam Fourier transform infrared spectroscopy, thermogravimetry and differential scanning calorimetry. The mechanical properties of the composites were determined by micro-Vickers hardness and impact testing. The morphology of the surface of the composites exposed to cavitation was observed through a field emission scanning electron microscope. AFM analysis was used to compare surface features seen using the SEM and to interpret the surface degradation properties. The hardness, cavitation resistance and high-impact energy resistance of the composites are better in the case of AM surface modification of alumina fillers, but biodiesel modified particles have comparable mechanical properties and a stabilized Al-O-Si bond that could be important when a composite is exposed to humidity or a wet environment.",
publisher = "Springer, New York",
journal = "Polymer Bulletin",
title = "Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance",
pages = "3620-3603",
number = "7",
volume = "77",
doi = "10.1007/s00289-019-02923-8"
}
Ashor, A. A., Vuksanović, M. M., Tomić, N., Petrović, M., Dojčinović, M., Volkov-Husović, T., Radojević, V.,& Jančić-Heinemann, R.. (2020). Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance. in Polymer Bulletin
Springer, New York., 77(7), 3603-3620.
https://doi.org/10.1007/s00289-019-02923-8
Ashor AA, Vuksanović MM, Tomić N, Petrović M, Dojčinović M, Volkov-Husović T, Radojević V, Jančić-Heinemann R. Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance. in Polymer Bulletin. 2020;77(7):3603-3620.
doi:10.1007/s00289-019-02923-8 .
Ashor, Almabrok A., Vuksanović, Marija M., Tomić, Nataša, Petrović, Miloš, Dojčinović, Marina, Volkov-Husović, Tatjana, Radojević, Vesna, Jančić-Heinemann, Radmila, "Optimization of modifier deposition on the alumina surface to enhance mechanical properties and cavitation resistance" in Polymer Bulletin, 77, no. 7 (2020):3603-3620,
https://doi.org/10.1007/s00289-019-02923-8 . .
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