TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Vasić, Milica
AU  - Terzić, Anja
AU  - Radomirović, Milena
AU  - Miličić, Ljiljana
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6634
AB  - The chemical compositions of refractory materials, such as high-alumina concrete, bricks, and putty, were analyzed using an energy-dispersive X-ray spectrometer (EDXRF). An improved methodology for investigating the effect of particle size on the outcomes of EDXRF chemical analysis is presented. Eight independent refractory samples (refractory concrete, brick, and putty) were pulverized utilizing seven milling times (30, 60, 120, 180, 240, 300, and 360 s) and compared to non-pulverized samples. Thus, sixty-four refractory samples were obtained and analyzed using EDXRF. The method for measuring the fundamental EDXRF characteristics was then tested with ten certified reference materials. The acquired data were compared using inductively coupled plasma atomic emission spectrometry (ICP-OES). Univariate and multivariate statistics are used to evaluate EDXRF data. The particle size of the tested samples affected the z-scores of SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, and P2O5 concentration measurements. Grinding times for refractory concrete, brick, and putty samples were determined in order to validate the robustness of the EDXRF technique and provide reliable chemical analyses. The ideal milling times for the samples studied ranged from 180 to 360 s, depending on the type of refractory material.
PB  - Elsevier B.V.
T2  - Spectrochimica Acta - Part B Atomic Spectroscopy
T1  - An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials
SP  - 106796
VL  - 209
DO  - 10.1016/j.sab.2023.106796
ER  - 

@article{
author = "Mijatović, Nevenka and Vasić, Milica and Terzić, Anja and Radomirović, Milena and Miličić, Ljiljana",
year = "2023",
abstract = "The chemical compositions of refractory materials, such as high-alumina concrete, bricks, and putty, were analyzed using an energy-dispersive X-ray spectrometer (EDXRF). An improved methodology for investigating the effect of particle size on the outcomes of EDXRF chemical analysis is presented. Eight independent refractory samples (refractory concrete, brick, and putty) were pulverized utilizing seven milling times (30, 60, 120, 180, 240, 300, and 360 s) and compared to non-pulverized samples. Thus, sixty-four refractory samples were obtained and analyzed using EDXRF. The method for measuring the fundamental EDXRF characteristics was then tested with ten certified reference materials. The acquired data were compared using inductively coupled plasma atomic emission spectrometry (ICP-OES). Univariate and multivariate statistics are used to evaluate EDXRF data. The particle size of the tested samples affected the z-scores of SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, and P2O5 concentration measurements. Grinding times for refractory concrete, brick, and putty samples were determined in order to validate the robustness of the EDXRF technique and provide reliable chemical analyses. The ideal milling times for the samples studied ranged from 180 to 360 s, depending on the type of refractory material.",
publisher = "Elsevier B.V.",
journal = "Spectrochimica Acta - Part B Atomic Spectroscopy",
title = "An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials",
pages = "106796",
volume = "209",
doi = "10.1016/j.sab.2023.106796"
}

Mijatović, N., Vasić, M., Terzić, A., Radomirović, M.,& Miličić, L.. (2023). An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials. in Spectrochimica Acta - Part B Atomic Spectroscopy
Elsevier B.V.., 209, 106796.
https://doi.org/10.1016/j.sab.2023.106796

Mijatović N, Vasić M, Terzić A, Radomirović M, Miličić L. An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials. in Spectrochimica Acta - Part B Atomic Spectroscopy. 2023;209:106796.
doi:10.1016/j.sab.2023.106796 .

Mijatović, Nevenka, Vasić, Milica, Terzić, Anja, Radomirović, Milena, Miličić, Ljiljana, "An augmented approach for the determination of the particle size effect on energy dispersive X-ray fluorescence analysis outcomes for alumina-based refractory materials" in Spectrochimica Acta - Part B Atomic Spectroscopy, 209 (2023):106796,
https://doi.org/10.1016/j.sab.2023.106796 . .

TY  - CONF
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Miličić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7313
AB  - The novel global trends for waste materials processing and recycling, as well as new
European standards for sampling and testing of these materials, require better performances of
analytical methods for the chemical analysis and improvements regarding their matrices. In this
study, a new method for optical emission spectrometry with inductively coupled plasma (ICP-OES)
has been developed and subsequently validated for determination of 35 elements comprised in
leachates of fly ash and composites based on fly ash, i.e. cement pastes and mortars. Validation
performances and the uncertainty measurement were determined and calculated via three different
routes: validation method, participation in proficiency testing schemes and standard method. It is
proved that this method is acceptable for the determination of all 35 elements in this matrix. The
obtained results highlight a new simple and effective analyzing route for quantity determination of
undesired trace elements in fluids upon conducted leaching test.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - Proceedings / XIII International Mineral Processing and Recycling Conference, MPRC, Belgrade, Serbia, 8-10 May 2019
T1  - Validation of ICP–OES procedure for major and trace elements determination in the leachates of fly ash and fly ash based composites
EP  - 76
SP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7313
ER  - 

@conference{
author = "Mijatović, Nevenka and Terzić, Anja and Miličić, Ljiljana and Živojinović, Dragana",
year = "2019",
abstract = "The novel global trends for waste materials processing and recycling, as well as new
European standards for sampling and testing of these materials, require better performances of
analytical methods for the chemical analysis and improvements regarding their matrices. In this
study, a new method for optical emission spectrometry with inductively coupled plasma (ICP-OES)
has been developed and subsequently validated for determination of 35 elements comprised in
leachates of fly ash and composites based on fly ash, i.e. cement pastes and mortars. Validation
performances and the uncertainty measurement were determined and calculated via three different
routes: validation method, participation in proficiency testing schemes and standard method. It is
proved that this method is acceptable for the determination of all 35 elements in this matrix. The
obtained results highlight a new simple and effective analyzing route for quantity determination of
undesired trace elements in fluids upon conducted leaching test.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "Proceedings / XIII International Mineral Processing and Recycling Conference, MPRC, Belgrade, Serbia, 8-10 May 2019",
title = "Validation of ICP–OES procedure for major and trace elements determination in the leachates of fly ash and fly ash based composites",
pages = "76-70",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7313"
}

Mijatović, N., Terzić, A., Miličić, L.,& Živojinović, D.. (2019). Validation of ICP–OES procedure for major and trace elements determination in the leachates of fly ash and fly ash based composites. in Proceedings / XIII International Mineral Processing and Recycling Conference, MPRC, Belgrade, Serbia, 8-10 May 2019
Bor : University of Belgrade, Technical Faculty., 70-76.
https://hdl.handle.net/21.15107/rcub_technorep_7313

Mijatović N, Terzić A, Miličić L, Živojinović D. Validation of ICP–OES procedure for major and trace elements determination in the leachates of fly ash and fly ash based composites. in Proceedings / XIII International Mineral Processing and Recycling Conference, MPRC, Belgrade, Serbia, 8-10 May 2019. 2019;:70-76.
https://hdl.handle.net/21.15107/rcub_technorep_7313 .

Mijatović, Nevenka, Terzić, Anja, Miličić, Ljiljana, Živojinović, Dragana, "Validation of ICP–OES procedure for major and trace elements determination in the leachates of fly ash and fly ash based composites" in Proceedings / XIII International Mineral Processing and Recycling Conference, MPRC, Belgrade, Serbia, 8-10 May 2019 (2019):70-76,
https://hdl.handle.net/21.15107/rcub_technorep_7313 .

TY  - JOUR
AU  - Aćimović-Pavlović, Zagorka
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Pavlović, Marko
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5755
AB  - This study presents the results of an investigation of high-temperature materials refractory coatings based on different refractory fillers including talc, cordierite, zircon and mullite applied in the lost-foam casting process. Design and optimization of a coating composition with controlled rheological properties and synthesis were achieved by applying different coating components, suspension agents and fillers and by altering the coating-production procedure. A morphological and microstructural analysis of the fillers was carried out with scanning electron microscopy. An X-ray diffraction analysis was applied to determine and monitor the phase-composition changes of the refractory fillers. The particle size and shape were assessed with the PC software application package OZARIA 2.5. To assess the effects of the applications of individual refractory coatings, a detailed investigation of the structural and mechanical properties of the mouldings obtained was performed. Highlight was placed on revealing and analyzing surface and volume defects present on the mouldings. Radiographic moulding tests were carried out with an X-ray device, SAIFORT type-S200. The attained results are essential for the synthesis of the refractory coatings based on high-temperature fillers and their applications in the lost-foam casting process for manufacturing the mouldings with in-advance-set properties.
PB  - Inst Za Kovinske Materiale I In Tehnologie, Ljubjana
T2  - Materiali in tehnologije
T1  - Comparison of refractory coatings based on talc, cordierite, zircon and mullite fillers for lost-foam casting
EP  - 164
IS  - 1
SP  - 157
VL  - 49
UR  - https://hdl.handle.net/21.15107/rcub_rims_277
ER  - 

@article{
author = "Aćimović-Pavlović, Zagorka and Terzić, Anja and Andrić, Ljubiša and Pavlović, Marko",
year = "2015",
abstract = "This study presents the results of an investigation of high-temperature materials refractory coatings based on different refractory fillers including talc, cordierite, zircon and mullite applied in the lost-foam casting process. Design and optimization of a coating composition with controlled rheological properties and synthesis were achieved by applying different coating components, suspension agents and fillers and by altering the coating-production procedure. A morphological and microstructural analysis of the fillers was carried out with scanning electron microscopy. An X-ray diffraction analysis was applied to determine and monitor the phase-composition changes of the refractory fillers. The particle size and shape were assessed with the PC software application package OZARIA 2.5. To assess the effects of the applications of individual refractory coatings, a detailed investigation of the structural and mechanical properties of the mouldings obtained was performed. Highlight was placed on revealing and analyzing surface and volume defects present on the mouldings. Radiographic moulding tests were carried out with an X-ray device, SAIFORT type-S200. The attained results are essential for the synthesis of the refractory coatings based on high-temperature fillers and their applications in the lost-foam casting process for manufacturing the mouldings with in-advance-set properties.",
publisher = "Inst Za Kovinske Materiale I In Tehnologie, Ljubjana",
journal = "Materiali in tehnologije",
title = "Comparison of refractory coatings based on talc, cordierite, zircon and mullite fillers for lost-foam casting",
pages = "164-157",
number = "1",
volume = "49",
url = "https://hdl.handle.net/21.15107/rcub_rims_277"
}

Aćimović-Pavlović, Z., Terzić, A., Andrić, L.,& Pavlović, M.. (2015). Comparison of refractory coatings based on talc, cordierite, zircon and mullite fillers for lost-foam casting. in Materiali in tehnologije
Inst Za Kovinske Materiale I In Tehnologie, Ljubjana., 49(1), 157-164.
https://hdl.handle.net/21.15107/rcub_rims_277

Aćimović-Pavlović Z, Terzić A, Andrić L, Pavlović M. Comparison of refractory coatings based on talc, cordierite, zircon and mullite fillers for lost-foam casting. in Materiali in tehnologije. 2015;49(1):157-164.
https://hdl.handle.net/21.15107/rcub_rims_277 .

Aćimović-Pavlović, Zagorka, Terzić, Anja, Andrić, Ljubiša, Pavlović, Marko, "Comparison of refractory coatings based on talc, cordierite, zircon and mullite fillers for lost-foam casting" in Materiali in tehnologije, 49, no. 1 (2015):157-164,
https://hdl.handle.net/21.15107/rcub_rims_277 .

TY  - JOUR
AU  - Prstić, Aurel
AU  - Aćimović-Pavlović, Zagorka
AU  - Andrić, Ljubiša
AU  - Stojanović, Jovica
AU  - Terzić, Anja
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5748
AB  - U ovom radu je istraživana mogućnost dobijanja novih vatrostalnih premaza na bazi cirkona koji bi imali primenu u livarstvu. Optimizacija sastava premaza kontrolisana reološkim svojstvima postignuta je primenom različitih komponenata premaza, naročito primenom novog veziva na bazi suspenzije i variranjem načina spravljanja premaza. Čestice cirkonskoh praha veličine 25×10-6 m su korišćene kao ispuna. Uzorak cirkona ispitivan je pomoću sledećih metoda: difrakcija X-zraka, diferencijalna termalna analiza i mikroskopija. Oblik i veličina zrna su analizirani pomoću računarskog programa za analizu slike OZARIA 2.5. Pokazano je da primena ovih premaza na bazi vode i alkohola ima pozitivan uticaj na kvalitet površine, tj. na strukturne i mehaničke karakteristike odlivaka livenog gvožđa koji su dobijeni metodom livenja u peščane kalupe i pomoću isparljivih modela (Lost Foam metoda livenja).
AB  - In this work, a possibility to develop a new zircon-based refractory coating for casting applications was investigated. Optimization of the coating composition with controlled rheological properties was attained by application of different coating components, particularly by application of a new suspension agent and by alteration of coating production procedure. Zircon powder with particle size of 25×10-6 m was used as filler. The zircon sample was investigated by means of X-ray diffraction analysis, diffraction thermal analysis and polarized microscopy. The shape and grain size were analyzed using OZARIA 2.5 software. It was shown that application of this type of water-alcohol-based coating had a positive influence on surface quality, structural and mechanical properties of the castings of cast iron obtained by pouring into sand molds by means of the expandable patterns method (Lost Foam casting process).
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja
T1  - Zircon-based coating for the applications in Lost Foam casting process
EP  - 593
IS  - 4
SP  - 587
VL  - 18
DO  - 10.2298/CICEQ111122034P
ER  - 

@article{
author = "Prstić, Aurel and Aćimović-Pavlović, Zagorka and Andrić, Ljubiša and Stojanović, Jovica and Terzić, Anja",
year = "2012",
abstract = "U ovom radu je istraživana mogućnost dobijanja novih vatrostalnih premaza na bazi cirkona koji bi imali primenu u livarstvu. Optimizacija sastava premaza kontrolisana reološkim svojstvima postignuta je primenom različitih komponenata premaza, naročito primenom novog veziva na bazi suspenzije i variranjem načina spravljanja premaza. Čestice cirkonskoh praha veličine 25×10-6 m su korišćene kao ispuna. Uzorak cirkona ispitivan je pomoću sledećih metoda: difrakcija X-zraka, diferencijalna termalna analiza i mikroskopija. Oblik i veličina zrna su analizirani pomoću računarskog programa za analizu slike OZARIA 2.5. Pokazano je da primena ovih premaza na bazi vode i alkohola ima pozitivan uticaj na kvalitet površine, tj. na strukturne i mehaničke karakteristike odlivaka livenog gvožđa koji su dobijeni metodom livenja u peščane kalupe i pomoću isparljivih modela (Lost Foam metoda livenja)., In this work, a possibility to develop a new zircon-based refractory coating for casting applications was investigated. Optimization of the coating composition with controlled rheological properties was attained by application of different coating components, particularly by application of a new suspension agent and by alteration of coating production procedure. Zircon powder with particle size of 25×10-6 m was used as filler. The zircon sample was investigated by means of X-ray diffraction analysis, diffraction thermal analysis and polarized microscopy. The shape and grain size were analyzed using OZARIA 2.5 software. It was shown that application of this type of water-alcohol-based coating had a positive influence on surface quality, structural and mechanical properties of the castings of cast iron obtained by pouring into sand molds by means of the expandable patterns method (Lost Foam casting process).",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja, Zircon-based coating for the applications in Lost Foam casting process",
pages = "593-587",
number = "4",
volume = "18",
doi = "10.2298/CICEQ111122034P"
}

Prstić, A., Aćimović-Pavlović, Z., Andrić, L., Stojanović, J.,& Terzić, A.. (2012). Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 18(4), 587-593.
https://doi.org/10.2298/CICEQ111122034P

Prstić A, Aćimović-Pavlović Z, Andrić L, Stojanović J, Terzić A. Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2012;18(4):587-593.
doi:10.2298/CICEQ111122034P .

Prstić, Aurel, Aćimović-Pavlović, Zagorka, Andrić, Ljubiša, Stojanović, Jovica, Terzić, Anja, "Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18, no. 4 (2012):587-593,
https://doi.org/10.2298/CICEQ111122034P . .