TY  - JOUR
AU  - Jovanović, Gvozden
AU  - Glišić, Dragomir
AU  - Dikić, Stefan
AU  - Međo, Bojan
AU  - Marković, Branislav
AU  - Vuković, Nikola
AU  - Radović, Nenad
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6938
AB  - Two medium-carbon microalloyed steels with a predominant acicular ferrite microstructure were investigated in this study in order to determine the initial micro-crack formation mechanism and the role of acicular ferrite structure in cleavage fracture. In order to ensure cleavage fracture, samples were investigated at −196 °C for uniaxial tension and four point bending fracture. Previous investigations have shown that cleavage fracture for steels with a predominant acicular ferrite microstructure has not been initiated by the fracture of coarse TiN particles as in ferrite-pearlite, bainite, or martensitic microalloyed steels. The average maximal thickness of cementite plates measured in this work is 0.798 µm and 0.966 µm, for V and TiV steel, respectively. The corresponding stress values required for their fracture according to Griffith’s equation are 1970 MPa and 1791 MPa, respectively. Estimated values of the effective surface energy for the V steel with an average cementite volume fraction of 3.8% range from 40 Jm−2 to 86 Jm−2, and for the TiV steel with an average cementite volume fraction of 18.3% range from 55 Jm−2 to 82 Jm−2. The fracture of coarse cementite plates was found to not to be responsible for the cleavage fracture initiation in case of both steels.
PB  - MDPI
T2  - Materials
T1  - Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels
IS  - 22
SP  - 7192
VL  - 16
DO  - 10.3390/ma16227192
ER  - 

@article{
author = "Jovanović, Gvozden and Glišić, Dragomir and Dikić, Stefan and Međo, Bojan and Marković, Branislav and Vuković, Nikola and Radović, Nenad",
year = "2023",
abstract = "Two medium-carbon microalloyed steels with a predominant acicular ferrite microstructure were investigated in this study in order to determine the initial micro-crack formation mechanism and the role of acicular ferrite structure in cleavage fracture. In order to ensure cleavage fracture, samples were investigated at −196 °C for uniaxial tension and four point bending fracture. Previous investigations have shown that cleavage fracture for steels with a predominant acicular ferrite microstructure has not been initiated by the fracture of coarse TiN particles as in ferrite-pearlite, bainite, or martensitic microalloyed steels. The average maximal thickness of cementite plates measured in this work is 0.798 µm and 0.966 µm, for V and TiV steel, respectively. The corresponding stress values required for their fracture according to Griffith’s equation are 1970 MPa and 1791 MPa, respectively. Estimated values of the effective surface energy for the V steel with an average cementite volume fraction of 3.8% range from 40 Jm−2 to 86 Jm−2, and for the TiV steel with an average cementite volume fraction of 18.3% range from 55 Jm−2 to 82 Jm−2. The fracture of coarse cementite plates was found to not to be responsible for the cleavage fracture initiation in case of both steels.",
publisher = "MDPI",
journal = "Materials",
title = "Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels",
number = "22",
pages = "7192",
volume = "16",
doi = "10.3390/ma16227192"
}

Jovanović, G., Glišić, D., Dikić, S., Međo, B., Marković, B., Vuković, N.,& Radović, N.. (2023). Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels. in Materials
MDPI., 16(22), 7192.
https://doi.org/10.3390/ma16227192

Jovanović G, Glišić D, Dikić S, Međo B, Marković B, Vuković N, Radović N. Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels. in Materials. 2023;16(22):7192.
doi:10.3390/ma16227192 .

Jovanović, Gvozden, Glišić, Dragomir, Dikić, Stefan, Međo, Bojan, Marković, Branislav, Vuković, Nikola, Radović, Nenad, "Determining the Role of Acicular Ferrite Carbides in Cleavage Fracture Crack Initiation for Two Medium Carbon Microalloyed Steels" in Materials, 16, no. 22 (2023):7192,
https://doi.org/10.3390/ma16227192 . .

TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Ivanović, Aleksandra
AU  - Vuković, Nikola
AU  - Dhawan, Nikhil
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5206
AB  - This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm−3. The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH ~ 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Chemical Papers
T1  - Electrochemical stability of gold complex based on mercaptotriazole at optimal condition
DO  - 10.1007/s11696-022-02447-y
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Ivanović, Aleksandra and Vuković, Nikola and Dhawan, Nikhil",
year = "2022",
abstract = "This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm−3. The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH ~ 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Chemical Papers",
title = "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition",
doi = "10.1007/s11696-022-02447-y"
}

Dimitrijević, S. P., Dimitrijević, S. B., Ivanović, A., Vuković, N.,& Dhawan, N.. (2022). Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers
Springer Science and Business Media Deutschland GmbH..
https://doi.org/10.1007/s11696-022-02447-y

Dimitrijević SP, Dimitrijević SB, Ivanović A, Vuković N, Dhawan N. Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers. 2022;.
doi:10.1007/s11696-022-02447-y .

Dimitrijević, Stevan P., Dimitrijević, Silvana B., Ivanović, Aleksandra, Vuković, Nikola, Dhawan, Nikhil, "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition" in Chemical Papers (2022),
https://doi.org/10.1007/s11696-022-02447-y . .

TY  - JOUR
AU  - Gligorijević, Bojan
AU  - Vilotijević, Miroljub N.
AU  - Scepanović, Maja
AU  - Vuković, Nikola S.
AU  - Radović, Nenad
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3403
AB  - The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures (  gt  100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt  HA remystallization process and the bonding strength of the HACs.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings
EP  - 420
IS  - 1
SP  - 411
VL  - 42
DO  - 10.1016/j.ceramint.2015.08.125
ER  - 

@article{
author = "Gligorijević, Bojan and Vilotijević, Miroljub N. and Scepanović, Maja and Vuković, Nikola S. and Radović, Nenad",
year = "2016",
abstract = "The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures (  gt  100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt  HA remystallization process and the bonding strength of the HACs.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings",
pages = "420-411",
number = "1",
volume = "42",
doi = "10.1016/j.ceramint.2015.08.125"
}

Gligorijević, B., Vilotijević, M. N., Scepanović, M., Vuković, N. S.,& Radović, N.. (2016). Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International
Elsevier Sci Ltd, Oxford., 42(1), 411-420.
https://doi.org/10.1016/j.ceramint.2015.08.125

Gligorijević B, Vilotijević MN, Scepanović M, Vuković NS, Radović N. Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International. 2016;42(1):411-420.
doi:10.1016/j.ceramint.2015.08.125 .

Gligorijević, Bojan, Vilotijević, Miroljub N., Scepanović, Maja, Vuković, Nikola S., Radović, Nenad, "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings" in Ceramics International, 42, no. 1 (2016):411-420,
https://doi.org/10.1016/j.ceramint.2015.08.125 . .

TY  - JOUR
AU  - Ivanković, Negovan
AU  - Rajić, Dušan
AU  - Ivanković, Nataša D.
AU  - Senić, Željko
AU  - Đurović, Branka
AU  - Vuković, Nikola S.
AU  - Karkalić, Radovan
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2621
AB  - Individual protection of the respiratory tract is a key factor in preventing/stopping a potential epidemic/pandemic caused naturally or during biological agents application in war or terrorist activities. Improving the existing or introducing new appropriate personal protective equipment to the military environment would be invaluable. In order to acquire a confirmation of reliability and physiological suitability for use in the protection of military personnel in case of a declared epidemic/pandemic, the protection effectiveness and physiological suitability of three models of epidemiological masks were tested in accordance with BS EN 149: 2007 under the conditions of simulated biological air contamination. The test results and their statistical processing have shown that an epidemiological mask possesses high efficiency and physiological suitability as a protective device in the case of air contamination with aerosols of biological agents. It is recommended for use in peacetime together with the existing standard military masks.
AB  - Individualna zaštita respiratornog trakta predstavlja ključni faktor u sprečavanju/prekidanju potencijalne epidemije/pandemije nastale prirodnim putem ili upotrebom bioloških agenasa u ratnim ili terorističkim dejstvima. Poboljšanje postojećih ili uvođenje novih pogodnijih ličnih zaštitnih sredstava u vojnu sredinu bilo bi od neprocenjivog značaja. U cilju sticanja potvrde pouzdanosti i fiziološke pogodnosti za upotrebu u zaštiti vojnog personala u slučaju objavljene epidemije/pandemije, izvršeno je ispitivanje efikasnosti zaštite i fiziološke podobnosti tri modela epidemiološke maske u uslovima simulirane biološke kontaminacije vazduha, u skladu sa standardom SRPS EN 149:2007. Na osnovu rezultata ispitivanja i njihove statističke obrade utvrđeno je da epidemiološka maska kao zaštitno sredstvo poseduje visoku efikasnost i fiziološku podobnost u slučaju kontaminacije vazduha aerosolima bioloških agenasa. Predlaže se za upotrebu u mirnodopskim uslovima ujedno sa postojećim formacijskim maskama.
PB  - Military Technical Institute, Belgrade
T2  - Scientific Technical Review
T1  - Efficacy of respiratory antimicrobial protection devices
T1  - Efikasnost sredstava respiratorne antimikrobne zaštite
EP  - 53
IS  - 3
SP  - 47
VL  - 64
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2621
ER  - 

@article{
author = "Ivanković, Negovan and Rajić, Dušan and Ivanković, Nataša D. and Senić, Željko and Đurović, Branka and Vuković, Nikola S. and Karkalić, Radovan",
year = "2014",
abstract = "Individual protection of the respiratory tract is a key factor in preventing/stopping a potential epidemic/pandemic caused naturally or during biological agents application in war or terrorist activities. Improving the existing or introducing new appropriate personal protective equipment to the military environment would be invaluable. In order to acquire a confirmation of reliability and physiological suitability for use in the protection of military personnel in case of a declared epidemic/pandemic, the protection effectiveness and physiological suitability of three models of epidemiological masks were tested in accordance with BS EN 149: 2007 under the conditions of simulated biological air contamination. The test results and their statistical processing have shown that an epidemiological mask possesses high efficiency and physiological suitability as a protective device in the case of air contamination with aerosols of biological agents. It is recommended for use in peacetime together with the existing standard military masks., Individualna zaštita respiratornog trakta predstavlja ključni faktor u sprečavanju/prekidanju potencijalne epidemije/pandemije nastale prirodnim putem ili upotrebom bioloških agenasa u ratnim ili terorističkim dejstvima. Poboljšanje postojećih ili uvođenje novih pogodnijih ličnih zaštitnih sredstava u vojnu sredinu bilo bi od neprocenjivog značaja. U cilju sticanja potvrde pouzdanosti i fiziološke pogodnosti za upotrebu u zaštiti vojnog personala u slučaju objavljene epidemije/pandemije, izvršeno je ispitivanje efikasnosti zaštite i fiziološke podobnosti tri modela epidemiološke maske u uslovima simulirane biološke kontaminacije vazduha, u skladu sa standardom SRPS EN 149:2007. Na osnovu rezultata ispitivanja i njihove statističke obrade utvrđeno je da epidemiološka maska kao zaštitno sredstvo poseduje visoku efikasnost i fiziološku podobnost u slučaju kontaminacije vazduha aerosolima bioloških agenasa. Predlaže se za upotrebu u mirnodopskim uslovima ujedno sa postojećim formacijskim maskama.",
publisher = "Military Technical Institute, Belgrade",
journal = "Scientific Technical Review",
title = "Efficacy of respiratory antimicrobial protection devices, Efikasnost sredstava respiratorne antimikrobne zaštite",
pages = "53-47",
number = "3",
volume = "64",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2621"
}

Ivanković, N., Rajić, D., Ivanković, N. D., Senić, Ž., Đurović, B., Vuković, N. S.,& Karkalić, R.. (2014). Efficacy of respiratory antimicrobial protection devices. in Scientific Technical Review
Military Technical Institute, Belgrade., 64(3), 47-53.
https://hdl.handle.net/21.15107/rcub_technorep_2621

Ivanković N, Rajić D, Ivanković ND, Senić Ž, Đurović B, Vuković NS, Karkalić R. Efficacy of respiratory antimicrobial protection devices. in Scientific Technical Review. 2014;64(3):47-53.
https://hdl.handle.net/21.15107/rcub_technorep_2621 .

Ivanković, Negovan, Rajić, Dušan, Ivanković, Nataša D., Senić, Željko, Đurović, Branka, Vuković, Nikola S., Karkalić, Radovan, "Efficacy of respiratory antimicrobial protection devices" in Scientific Technical Review, 64, no. 3 (2014):47-53,
https://hdl.handle.net/21.15107/rcub_technorep_2621 .

TY  - JOUR
AU  - Dimitrijević, Silvana
AU  - Trujić, Vlastimir
AU  - Dragulović, Suzana
AU  - Marković, Radmila
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Vuković, Nikola S.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2058
AB  - Recycling of secondary raw materials recently become more interesting , mainly due to reduced quantities of waste and price of waste water treatment. Aim of this work was recycling and production of copper ana silver from rub out copper wire plated with silver. Silver and copper high purity (99,99%) from rub out copper wire realized by combining pyro-metallurgy, electro-metallurgy and chemical treatment in laboratory and pilot production plant in Institute of Mining and Metallurgy Bor.
AB  - U novije vreme povećan je interes za recikliranjem metala čime se smanjuje količina otpada kao i troškovi tretiranja otpadnih voda. Cilj ovog rada bio je da se iz istrošene posrebrene bakarne žice valorizuju srebro i bakar, a da se nečistoće, kao što su olovo, kalaj, antimon i kadmijum uklone. Srebro i bakar visoke čistoće (99,99 %) iz istrošene žice dobijeni su kombinacijom pirometalurških, elektrometalurških i hemijskih postupaka u laboratorijama i poluindustrijskim postrojenjima Instituta za rudarstvo i metalurgiju u Boru.
PB  - Institut za bakar, Bor
T2  - Bakar
T1  - Recycling silver and copper from rub out copper wire plated with silver
T1  - Reciklaža srebra i bakra iz istrošene posrebrene bakarne žice
EP  - 78
IS  - 1
SP  - 69
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2058
ER  - 

@article{
author = "Dimitrijević, Silvana and Trujić, Vlastimir and Dragulović, Suzana and Marković, Radmila and Kamberović, Željko and Korać, Marija and Vuković, Nikola S.",
year = "2012",
abstract = "Recycling of secondary raw materials recently become more interesting , mainly due to reduced quantities of waste and price of waste water treatment. Aim of this work was recycling and production of copper ana silver from rub out copper wire plated with silver. Silver and copper high purity (99,99%) from rub out copper wire realized by combining pyro-metallurgy, electro-metallurgy and chemical treatment in laboratory and pilot production plant in Institute of Mining and Metallurgy Bor., U novije vreme povećan je interes za recikliranjem metala čime se smanjuje količina otpada kao i troškovi tretiranja otpadnih voda. Cilj ovog rada bio je da se iz istrošene posrebrene bakarne žice valorizuju srebro i bakar, a da se nečistoće, kao što su olovo, kalaj, antimon i kadmijum uklone. Srebro i bakar visoke čistoće (99,99 %) iz istrošene žice dobijeni su kombinacijom pirometalurških, elektrometalurških i hemijskih postupaka u laboratorijama i poluindustrijskim postrojenjima Instituta za rudarstvo i metalurgiju u Boru.",
publisher = "Institut za bakar, Bor",
journal = "Bakar",
title = "Recycling silver and copper from rub out copper wire plated with silver, Reciklaža srebra i bakra iz istrošene posrebrene bakarne žice",
pages = "78-69",
number = "1",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2058"
}

Dimitrijević, S., Trujić, V., Dragulović, S., Marković, R., Kamberović, Ž., Korać, M.,& Vuković, N. S.. (2012). Recycling silver and copper from rub out copper wire plated with silver. in Bakar
Institut za bakar, Bor., 37(1), 69-78.
https://hdl.handle.net/21.15107/rcub_technorep_2058

Dimitrijević S, Trujić V, Dragulović S, Marković R, Kamberović Ž, Korać M, Vuković NS. Recycling silver and copper from rub out copper wire plated with silver. in Bakar. 2012;37(1):69-78.
https://hdl.handle.net/21.15107/rcub_technorep_2058 .

Dimitrijević, Silvana, Trujić, Vlastimir, Dragulović, Suzana, Marković, Radmila, Kamberović, Željko, Korać, Marija, Vuković, Nikola S., "Recycling silver and copper from rub out copper wire plated with silver" in Bakar, 37, no. 1 (2012):69-78,
https://hdl.handle.net/21.15107/rcub_technorep_2058 .