TY  - JOUR
AU  - Mandić, Mina
AU  - Spasić, Jelena
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija
AU  - Ćosović, Vladan
AU  - O'Connor, Kevin E
AU  - Nikodinović-Runić, Jasmina
AU  - Đokić, Lidija
AU  - Jeremić, Sanja
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5040
AB  - Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.
PB  - Elsevier Ltd
T2  - Polymer Degradation and Stability
T1  - Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil
EP  - 168
SP  - 160
VL  - 162
DO  - 10.1016/j.polymdegradstab.2019.02.012
ER  - 

@article{
author = "Mandić, Mina and Spasić, Jelena and Ponjavić, Marijana and Nikolić, Marija and Ćosović, Vladan and O'Connor, Kevin E and Nikodinović-Runić, Jasmina and Đokić, Lidija and Jeremić, Sanja",
year = "2019",
abstract = "Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(ε-caprolactone) (PCL) or polyhydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 μm) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 μm) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chlororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis B-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.",
publisher = "Elsevier Ltd",
journal = "Polymer Degradation and Stability",
title = "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil",
pages = "168-160",
volume = "162",
doi = "10.1016/j.polymdegradstab.2019.02.012"
}

Mandić, M., Spasić, J., Ponjavić, M., Nikolić, M., Ćosović, V., O'Connor, K. E., Nikodinović-Runić, J., Đokić, L.,& Jeremić, S.. (2019). Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability
Elsevier Ltd., 162, 160-168.
https://doi.org/10.1016/j.polymdegradstab.2019.02.012

Mandić M, Spasić J, Ponjavić M, Nikolić M, Ćosović V, O'Connor KE, Nikodinović-Runić J, Đokić L, Jeremić S. Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability. 2019;162:160-168.
doi:10.1016/j.polymdegradstab.2019.02.012 .

Mandić, Mina, Spasić, Jelena, Ponjavić, Marijana, Nikolić, Marija, Ćosović, Vladan, O'Connor, Kevin E, Nikodinović-Runić, Jasmina, Đokić, Lidija, Jeremić, Sanja, "Biodegradation of poly(ε-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil" in Polymer Degradation and Stability, 162 (2019):160-168,
https://doi.org/10.1016/j.polymdegradstab.2019.02.012 . .

TY  - JOUR
AU  - Mandić, Mina
AU  - Spasić, Jelena
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija
AU  - Ćosović, Vladan
AU  - O'Connor, Kevin E.
AU  - Nikodinović-Runić, Jasmina
AU  - Đokić, Lidija
AU  - Jeremić, Sanja
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4250
AB  - Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(epsilon-caprolactone) (PCL) or poly-hydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 mu m) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 mu m) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chiororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis13-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Degradation and Stability
T1  - Biodegradation of poly(epsilon-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil
EP  - 168
SP  - 160
VL  - 162
DO  - 10.1016/j.polymdegradstab.2019.02.012
ER  - 

@article{
author = "Mandić, Mina and Spasić, Jelena and Ponjavić, Marijana and Nikolić, Marija and Ćosović, Vladan and O'Connor, Kevin E. and Nikodinović-Runić, Jasmina and Đokić, Lidija and Jeremić, Sanja",
year = "2019",
abstract = "Petrochemical plastics are generally recalcitrant to microbial degradation and accumulate in the environment. Biodegradable polymers obtained synthetically like poly(epsilon-caprolactone) (PCL) or poly-hydroxyalkanoates (PHA), obtained biotechnologically, have shown great potential as a replacement for petroleum-based plastics. Nevertheless, their biodegradation and environmental faith have been less examined. In this study, thin films of PCL (200 mu m) and medium chain length PHA (mcl-PHA, 70 M fraction of 3-hydroxyoctanoate and 30 M fraction of 3-hydroxydecanoate, 600 mu m) were exposed to total protein preparations (extracellular proteins combined with a crude cell extract) of soil isolates Pseudomonas chiororaphis B-561 and Streptomyces sp. BV315 that had been grown on waste cooking oil as a sole carbon source. Biodegradation potential of two polyesters was evaluated in buffer with total protein preparations and in a laboratory compost model system augmented with selected bacteria. Overall, PCL showed better biodegradation properties in comparison to mcl-PHA. Both materials showed surface erosion after 4-weeks of exposure to total protein preparations of both strains, with a moderate weight loss of 1.3% when P. chlororaphis13-561 was utilized. In laboratory compost model system PCL and mcl-PHA showed significant weight loss ranging from 13 to 17% when Streptomyces sp. BV315 culture was used. Similar weight loss of PCL and mcl-PHA was achieved for 4 and 8 weeks, respectively indicating slower degradation of mcl-PHA. Growth on waste cooking oil as a sole carbon source increased the potential of both tested strains to degrade PCL and mcl-PHA, making them good candidates for augmentation of compost cultures in waste management of both waste cooking oils and biodegradable polymers.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Degradation and Stability",
title = "Biodegradation of poly(epsilon-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil",
pages = "168-160",
volume = "162",
doi = "10.1016/j.polymdegradstab.2019.02.012"
}

Mandić, M., Spasić, J., Ponjavić, M., Nikolić, M., Ćosović, V., O'Connor, K. E., Nikodinović-Runić, J., Đokić, L.,& Jeremić, S.. (2019). Biodegradation of poly(epsilon-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability
Elsevier Sci Ltd, Oxford., 162, 160-168.
https://doi.org/10.1016/j.polymdegradstab.2019.02.012

Mandić M, Spasić J, Ponjavić M, Nikolić M, Ćosović V, O'Connor KE, Nikodinović-Runić J, Đokić L, Jeremić S. Biodegradation of poly(epsilon-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil. in Polymer Degradation and Stability. 2019;162:160-168.
doi:10.1016/j.polymdegradstab.2019.02.012 .

Mandić, Mina, Spasić, Jelena, Ponjavić, Marijana, Nikolić, Marija, Ćosović, Vladan, O'Connor, Kevin E., Nikodinović-Runić, Jasmina, Đokić, Lidija, Jeremić, Sanja, "Biodegradation of poly(epsilon-caprolactone) (PCL) and medium chain length polyhydroxyalkanoate (mcl-PHA) using whole cells and cell free protein preparations of Pseudomonas and Streptomyces strains grown on waste cooking oil" in Polymer Degradation and Stability, 162 (2019):160-168,
https://doi.org/10.1016/j.polymdegradstab.2019.02.012 . .

TY  - JOUR
AU  - Stajčić, Aleksandar
AU  - Radović, Ivana
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Jančić-Heinemann, Radmila
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4131
AB  - This study presents preparation and characterization of ethyl cellulose based nanocomposites. Successful use of simple solvent casting technique provided nanocomposites with high loads of barium ferrite magnetic nanopowder in the polymer matrix, promising significant improvement of mechanical properties. Investigation of morphology revealed formation of agglomerates that are still on nanoscopic level. Nanocomposite thin films with a higher content of the magnetic powder showed substantial enhancement of break strength, elongation and microhardness compared to the pure ethyl cellulose, which was the primary aim of this research.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Influence of Barium Ferrite Nanoparticles on Morphological and Mechanical Properties of Ethyl Cellulose Based Nanocomposites
EP  - 283
IS  - 3
SP  - 277
VL  - 51
DO  - 10.2298/SOS1903277S
ER  - 

@article{
author = "Stajčić, Aleksandar and Radović, Ivana and Ćosović, Vladan and Grujić, Aleksandar and Stajić-Trošić, Jasna and Jančić-Heinemann, Radmila",
year = "2019",
abstract = "This study presents preparation and characterization of ethyl cellulose based nanocomposites. Successful use of simple solvent casting technique provided nanocomposites with high loads of barium ferrite magnetic nanopowder in the polymer matrix, promising significant improvement of mechanical properties. Investigation of morphology revealed formation of agglomerates that are still on nanoscopic level. Nanocomposite thin films with a higher content of the magnetic powder showed substantial enhancement of break strength, elongation and microhardness compared to the pure ethyl cellulose, which was the primary aim of this research.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Influence of Barium Ferrite Nanoparticles on Morphological and Mechanical Properties of Ethyl Cellulose Based Nanocomposites",
pages = "283-277",
number = "3",
volume = "51",
doi = "10.2298/SOS1903277S"
}

Stajčić, A., Radović, I., Ćosović, V., Grujić, A., Stajić-Trošić, J.,& Jančić-Heinemann, R.. (2019). The Influence of Barium Ferrite Nanoparticles on Morphological and Mechanical Properties of Ethyl Cellulose Based Nanocomposites. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(3), 277-283.
https://doi.org/10.2298/SOS1903277S

Stajčić A, Radović I, Ćosović V, Grujić A, Stajić-Trošić J, Jančić-Heinemann R. The Influence of Barium Ferrite Nanoparticles on Morphological and Mechanical Properties of Ethyl Cellulose Based Nanocomposites. in Science of Sintering. 2019;51(3):277-283.
doi:10.2298/SOS1903277S .

Stajčić, Aleksandar, Radović, Ivana, Ćosović, Vladan, Grujić, Aleksandar, Stajić-Trošić, Jasna, Jančić-Heinemann, Radmila, "The Influence of Barium Ferrite Nanoparticles on Morphological and Mechanical Properties of Ethyl Cellulose Based Nanocomposites" in Science of Sintering, 51, no. 3 (2019):277-283,
https://doi.org/10.2298/SOS1903277S . .

TY  - JOUR
AU  - Ponjavić, Marijana
AU  - Nikolić, Marija
AU  - Jeremić, Sanja
AU  - Đokić, Lidija
AU  - Nikodinović-Runić, Jasmina
AU  - Ćosović, Vladan
AU  - Đonlagić, Jasna
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4002
AB  - Hydrolytic, enzymatic degradation and composting under controlled conditions of series of triblock PCL/PEO copolymers, PCEC, with central short PEO block (M (n) 400 g/mol) are presented and compared with homopolymer (PCL). The PCEC copolymers, synthesized via ring-opening polymerization of epsilon-caprolactone, were characterized by H-1 NMR, quantitative C-13 NMR, GPC, DSC and WAXS. The introduction of the PEO central segment ( lt  2 wt%) in PCL chains significantly affected thermal degradation and crystallization behavior, while the hydrophobicity was slightly reduced as confirmed by water absorption and moisture uptake experiments. Hydrolytic degradation studies in phosphate buffer after 8 weeks indicated a small weight loss, while FTIR analysis detected changes in crystallinity indexes and GPC measurements revealed bulk degradation. Enzymatic degradation tested by cell-free extracts containing Pseudomonas aeruginosa PAO1 confirmed high enzyme activity throughout the surface causing morphological changes detected by optical microscopy and AFM analysis. The changes in roughness of polymer films revealed surface erosion mechanism of enzymatic degradation. Copolymer with the highest content of PEO segment and the lowest molecular weight showed better degradation ability compared to PCL and other copolymers. Furthermore, composting of polymer films in a model compost system at 37 A degrees C resulted in significant degradation of the all synthesized block copolymers.
PB  - Springer/Plenum Publishers, New York
T2  - Journal of Polymers and the Environment
T1  - Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers
EP  - 2359
IS  - 6
SP  - 2346
VL  - 26
DO  - 10.1007/s10924-017-1130-2
ER  - 

@article{
author = "Ponjavić, Marijana and Nikolić, Marija and Jeremić, Sanja and Đokić, Lidija and Nikodinović-Runić, Jasmina and Ćosović, Vladan and Đonlagić, Jasna",
year = "2018",
abstract = "Hydrolytic, enzymatic degradation and composting under controlled conditions of series of triblock PCL/PEO copolymers, PCEC, with central short PEO block (M (n) 400 g/mol) are presented and compared with homopolymer (PCL). The PCEC copolymers, synthesized via ring-opening polymerization of epsilon-caprolactone, were characterized by H-1 NMR, quantitative C-13 NMR, GPC, DSC and WAXS. The introduction of the PEO central segment ( lt  2 wt%) in PCL chains significantly affected thermal degradation and crystallization behavior, while the hydrophobicity was slightly reduced as confirmed by water absorption and moisture uptake experiments. Hydrolytic degradation studies in phosphate buffer after 8 weeks indicated a small weight loss, while FTIR analysis detected changes in crystallinity indexes and GPC measurements revealed bulk degradation. Enzymatic degradation tested by cell-free extracts containing Pseudomonas aeruginosa PAO1 confirmed high enzyme activity throughout the surface causing morphological changes detected by optical microscopy and AFM analysis. The changes in roughness of polymer films revealed surface erosion mechanism of enzymatic degradation. Copolymer with the highest content of PEO segment and the lowest molecular weight showed better degradation ability compared to PCL and other copolymers. Furthermore, composting of polymer films in a model compost system at 37 A degrees C resulted in significant degradation of the all synthesized block copolymers.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Journal of Polymers and the Environment",
title = "Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers",
pages = "2359-2346",
number = "6",
volume = "26",
doi = "10.1007/s10924-017-1130-2"
}

Ponjavić, M., Nikolić, M., Jeremić, S., Đokić, L., Nikodinović-Runić, J., Ćosović, V.,& Đonlagić, J.. (2018). Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers. in Journal of Polymers and the Environment
Springer/Plenum Publishers, New York., 26(6), 2346-2359.
https://doi.org/10.1007/s10924-017-1130-2

Ponjavić M, Nikolić M, Jeremić S, Đokić L, Nikodinović-Runić J, Ćosović V, Đonlagić J. Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers. in Journal of Polymers and the Environment. 2018;26(6):2346-2359.
doi:10.1007/s10924-017-1130-2 .

Ponjavić, Marijana, Nikolić, Marija, Jeremić, Sanja, Đokić, Lidija, Nikodinović-Runić, Jasmina, Ćosović, Vladan, Đonlagić, Jasna, "Influence of Short Central PEO Segment on Hydrolytic and Enzymatic Degradation of Triblock PCL Copolymers" in Journal of Polymers and the Environment, 26, no. 6 (2018):2346-2359,
https://doi.org/10.1007/s10924-017-1130-2 . .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Aleksandar
AU  - Stijepović, Mirko
AU  - Putić, Lana S.
AU  - Žák, Tomáš
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3914
AB  - In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes ( lt 13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique
EP  - 180
IS  - 3
SP  - 173
VL  - 24
DO  - 10.30544/387
ER  - 

@article{
author = "Grujić, Aleksandar and Ćosović, Vladan and Stajić-Trošić, Jasna and Ćosović, Aleksandar and Stijepović, Mirko and Putić, Lana S. and Žák, Tomáš",
year = "2018",
abstract = "In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes ( lt 13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique",
pages = "180-173",
number = "3",
volume = "24",
doi = "10.30544/387"
}

Grujić, A., Ćosović, V., Stajić-Trošić, J., Ćosović, A., Stijepović, M., Putić, L. S.,& Žák, T.. (2018). Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 24(3), 173-180.
https://doi.org/10.30544/387

Grujić A, Ćosović V, Stajić-Trošić J, Ćosović A, Stijepović M, Putić LS, Žák T. Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering. 2018;24(3):173-180.
doi:10.30544/387 .

Grujić, Aleksandar, Ćosović, Vladan, Stajić-Trošić, Jasna, Ćosović, Aleksandar, Stijepović, Mirko, Putić, Lana S., Žák, Tomáš, "Synthesis of nife2o4 nanofibers by joint sol-gel and electrospinning technique" in Metallurgical & Materials Engineering, 24, no. 3 (2018):173-180,
https://doi.org/10.30544/387 . .

TY  - JOUR
AU  - Nikolić, Marija
AU  - Petrović, Rada
AU  - Veljović, Đorđe
AU  - Ćosović, Vladan
AU  - Stanković, Nadežda
AU  - Đonlagić, Jasna
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3643
AB  - Poly(epsilon-caprolactone) (PCL) based nanocomposites with unmodified and organomodified sepiolites were prepared by solution casting method. The sepiolites were modified with short (3-mercaptopropyl)trimethoxysilane (SEP-SI) by using covalent grafting or with long hexadecylamine (SEP-HDA) by using ionic exchange. In order to reveal the influence of the organomodification on the nanoclay dispersion and the properties of the nano composites XRD, DSC, TG, SEM, TEM, optical microscopy, melt rheology and dynamic-mechanical analyses were performed. A better dispersion was achieved when organomodified sepiolites instead of native ones were used as fillers. As deduced from the melt rheology data, by analysis of the Cole-Cole plots, the best dispersion was obtained for SEP-SI nanoclay. The thermal stability was not improved, however in the initial stages of the thereto-oxidative degradation a delay in the weight loss was observed for nanocomposites with organomodified sepiolites. The mechanical properties of the nanocomposites were improved in comparison to PCL, particularly for those with modified sepiolites. In terms of mechanical properties the use of sepiolite modified with HDA gave the best results, as a consequence of better interaction between longer alkyl hydrophobic part of the organic modificator and the hydrophobic PCL matrix.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites
EP  - 209
SP  - 198
VL  - 97
DO  - 10.1016/j.eurpolymj.2017.10.010
ER  - 

@article{
author = "Nikolić, Marija and Petrović, Rada and Veljović, Đorđe and Ćosović, Vladan and Stanković, Nadežda and Đonlagić, Jasna",
year = "2017",
abstract = "Poly(epsilon-caprolactone) (PCL) based nanocomposites with unmodified and organomodified sepiolites were prepared by solution casting method. The sepiolites were modified with short (3-mercaptopropyl)trimethoxysilane (SEP-SI) by using covalent grafting or with long hexadecylamine (SEP-HDA) by using ionic exchange. In order to reveal the influence of the organomodification on the nanoclay dispersion and the properties of the nano composites XRD, DSC, TG, SEM, TEM, optical microscopy, melt rheology and dynamic-mechanical analyses were performed. A better dispersion was achieved when organomodified sepiolites instead of native ones were used as fillers. As deduced from the melt rheology data, by analysis of the Cole-Cole plots, the best dispersion was obtained for SEP-SI nanoclay. The thermal stability was not improved, however in the initial stages of the thereto-oxidative degradation a delay in the weight loss was observed for nanocomposites with organomodified sepiolites. The mechanical properties of the nanocomposites were improved in comparison to PCL, particularly for those with modified sepiolites. In terms of mechanical properties the use of sepiolite modified with HDA gave the best results, as a consequence of better interaction between longer alkyl hydrophobic part of the organic modificator and the hydrophobic PCL matrix.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites",
pages = "209-198",
volume = "97",
doi = "10.1016/j.eurpolymj.2017.10.010"
}

Nikolić, M., Petrović, R., Veljović, Đ., Ćosović, V., Stanković, N.,& Đonlagić, J.. (2017). Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 97, 198-209.
https://doi.org/10.1016/j.eurpolymj.2017.10.010

Nikolić M, Petrović R, Veljović Đ, Ćosović V, Stanković N, Đonlagić J. Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites. in European Polymer Journal. 2017;97:198-209.
doi:10.1016/j.eurpolymj.2017.10.010 .

Nikolić, Marija, Petrović, Rada, Veljović, Đorđe, Ćosović, Vladan, Stanković, Nadežda, Đonlagić, Jasna, "Effect of sepiolite organomodification on the performance of PCL/sepiolite nanocomposites" in European Polymer Journal, 97 (2017):198-209,
https://doi.org/10.1016/j.eurpolymj.2017.10.010 . .

TY  - JOUR
AU  - Ćosović, Aleksandar
AU  - Žák, Tomáš
AU  - Glišić, Sandra
AU  - Sokić, Miroslav
AU  - Lazarević, Slavica
AU  - Ćosović, Vladan
AU  - Orlović, Aleksandar
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3262
AB  - Nano-crystalline nickel ferrite has a broad range of applications due to its favourable magnetic properties. Those characteristics can be significantly influenced by the synthesis pathway including methods conducted in the presence of supercritical alcohols. Nano-crystalline NiFe2O4 powders were obtained in the reaction under subcritical and supercritical conditions of ethanol. Both high pressure synthesis routes resulted in powders with smaller primary particles and higher mesoporosity than co-precipitation method. Upon the annealing treatment the average crystallite size increased while material structure remained uniform, resulting in significantly enhanced magnetic properties, such as coercivity and remanence. It was found that synthesis under supercritical conditions provides higher conversion but also material with larger average crystallite size upon annealing. The time and temperature of annealing stage significantly influenced the morphology and magnetic properties of the obtained powders.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol
EP  - 105
SP  - 96
VL  - 113
DO  - 10.1016/j.supflu.2016.03.014
ER  - 

@article{
author = "Ćosović, Aleksandar and Žák, Tomáš and Glišić, Sandra and Sokić, Miroslav and Lazarević, Slavica and Ćosović, Vladan and Orlović, Aleksandar",
year = "2016",
abstract = "Nano-crystalline nickel ferrite has a broad range of applications due to its favourable magnetic properties. Those characteristics can be significantly influenced by the synthesis pathway including methods conducted in the presence of supercritical alcohols. Nano-crystalline NiFe2O4 powders were obtained in the reaction under subcritical and supercritical conditions of ethanol. Both high pressure synthesis routes resulted in powders with smaller primary particles and higher mesoporosity than co-precipitation method. Upon the annealing treatment the average crystallite size increased while material structure remained uniform, resulting in significantly enhanced magnetic properties, such as coercivity and remanence. It was found that synthesis under supercritical conditions provides higher conversion but also material with larger average crystallite size upon annealing. The time and temperature of annealing stage significantly influenced the morphology and magnetic properties of the obtained powders.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol",
pages = "105-96",
volume = "113",
doi = "10.1016/j.supflu.2016.03.014"
}

Ćosović, A., Žák, T., Glišić, S., Sokić, M., Lazarević, S., Ćosović, V.,& Orlović, A.. (2016). Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol. in Journal of Supercritical Fluids
Elsevier Science Bv, Amsterdam., 113, 96-105.
https://doi.org/10.1016/j.supflu.2016.03.014

Ćosović A, Žák T, Glišić S, Sokić M, Lazarević S, Ćosović V, Orlović A. Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol. in Journal of Supercritical Fluids. 2016;113:96-105.
doi:10.1016/j.supflu.2016.03.014 .

Ćosović, Aleksandar, Žák, Tomáš, Glišić, Sandra, Sokić, Miroslav, Lazarević, Slavica, Ćosović, Vladan, Orlović, Aleksandar, "Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol" in Journal of Supercritical Fluids, 113 (2016):96-105,
https://doi.org/10.1016/j.supflu.2016.03.014 . .

TY  - JOUR
AU  - El Swie, H.
AU  - Radojević, Vesna
AU  - Brajović, Ljiljana
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Aleksić, Radoslav
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3084
AB  - The commercial multi-mode optical fiber was coated with magnetic composite material prepared using Nd-Fe-B permanent magnet powder dispersed in poly (ethylene-co-vinyl acetate)-EVA. Characterization of microstructure, thermal stability and mechanical properties of the composite coatings with different Nd-Fe-B powder content were performed using Scanning Electron Microscope (SEM), Differential Scanning Calorimetry (DSC), and standard tensile tester, respectively. Experimental results show that composites with higher content of Nd-Fe-B powder have improved thermal and mechanical properties. Propagation characteristics of the constructed optical fiber magnetic sensing element (OFMSE) in the external magnetic field were investigated in relation to quality and composition of the applied composite coatings. The attenuation of optical signal with applied external magnetic field intensity was monitored and the results suggest that the sample with 50 wt-% of Nd-Fe-B provides the greatest sensitivity of the sensor element.
PB  - Inst Materials Physics, Bucharest
T2  - Digest Journal of Nanomaterials and Biostructures
T1  - Synthesis and performance of polymer based magnetic composite sensing element
EP  - 1483
IS  - 4
SP  - 1475
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3084
ER  - 

@article{
author = "El Swie, H. and Radojević, Vesna and Brajović, Ljiljana and Stajić-Trošić, Jasna and Ćosović, Vladan and Grujić, Aleksandar and Aleksić, Radoslav",
year = "2015",
abstract = "The commercial multi-mode optical fiber was coated with magnetic composite material prepared using Nd-Fe-B permanent magnet powder dispersed in poly (ethylene-co-vinyl acetate)-EVA. Characterization of microstructure, thermal stability and mechanical properties of the composite coatings with different Nd-Fe-B powder content were performed using Scanning Electron Microscope (SEM), Differential Scanning Calorimetry (DSC), and standard tensile tester, respectively. Experimental results show that composites with higher content of Nd-Fe-B powder have improved thermal and mechanical properties. Propagation characteristics of the constructed optical fiber magnetic sensing element (OFMSE) in the external magnetic field were investigated in relation to quality and composition of the applied composite coatings. The attenuation of optical signal with applied external magnetic field intensity was monitored and the results suggest that the sample with 50 wt-% of Nd-Fe-B provides the greatest sensitivity of the sensor element.",
publisher = "Inst Materials Physics, Bucharest",
journal = "Digest Journal of Nanomaterials and Biostructures",
title = "Synthesis and performance of polymer based magnetic composite sensing element",
pages = "1483-1475",
number = "4",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3084"
}

El Swie, H., Radojević, V., Brajović, L., Stajić-Trošić, J., Ćosović, V., Grujić, A.,& Aleksić, R.. (2015). Synthesis and performance of polymer based magnetic composite sensing element. in Digest Journal of Nanomaterials and Biostructures
Inst Materials Physics, Bucharest., 10(4), 1475-1483.
https://hdl.handle.net/21.15107/rcub_technorep_3084

El Swie H, Radojević V, Brajović L, Stajić-Trošić J, Ćosović V, Grujić A, Aleksić R. Synthesis and performance of polymer based magnetic composite sensing element. in Digest Journal of Nanomaterials and Biostructures. 2015;10(4):1475-1483.
https://hdl.handle.net/21.15107/rcub_technorep_3084 .

El Swie, H., Radojević, Vesna, Brajović, Ljiljana, Stajić-Trošić, Jasna, Ćosović, Vladan, Grujić, Aleksandar, Aleksić, Radoslav, "Synthesis and performance of polymer based magnetic composite sensing element" in Digest Journal of Nanomaterials and Biostructures, 10, no. 4 (2015):1475-1483,
https://hdl.handle.net/21.15107/rcub_technorep_3084 .

TY  - JOUR
AU  - Dervisević, Irma
AU  - Minić, Duško
AU  - Kamberović, Željko
AU  - Ćosović, Vladan
AU  - Ristić, Mirjana
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2533
AB  - In this paper, we have analyzed parts of printed circuit board (PCB) and liquid crystal display (LCD) screens of mobile phones and computers, quantitative and qualitative chemical compositions of individual components, and complete PCBs were determined. Differential thermal analysis (DTA) and differential scanning calorimetry (DSC) methods were used to determine the temperatures of phase transformations, whereas qualitative and quantitative compositions of the samples were determined by X-ray fluorescence spectrometry (XRF), inductively coupled plasma optical emission spectrometry (ICP-OES), and scanning electron microscopy (SEM)-energy dispersive X-ray spectrometry (EDS) analyses. The microstructure of samples was studied by optical microscopy. Based on results of the analysis, a procedure for recycling PCBs is proposed. The emphasis was on the effects that can be achieved in the recycling process by extraction of some parts before the melting process. In addition, newly developed materials can be an adequate substitute for some of the dangerous and harmful materials, such as lead and arsenic are proposed, which is in accordance with the European Union (EU) Restriction of the use of certain hazardous substances (RoHS) directive as well as some alternative materials for use in the electronics industry instead of gold and gold alloys.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Characterization of PCBs from computers and mobile phones, and the proposal of newly developed materials for substitution of gold, lead and arsenic
EP  - 4292
IS  - 6
SP  - 4278
VL  - 20
DO  - 10.1007/s11356-012-1448-1
ER  - 

@article{
author = "Dervisević, Irma and Minić, Duško and Kamberović, Željko and Ćosović, Vladan and Ristić, Mirjana",
year = "2013",
abstract = "In this paper, we have analyzed parts of printed circuit board (PCB) and liquid crystal display (LCD) screens of mobile phones and computers, quantitative and qualitative chemical compositions of individual components, and complete PCBs were determined. Differential thermal analysis (DTA) and differential scanning calorimetry (DSC) methods were used to determine the temperatures of phase transformations, whereas qualitative and quantitative compositions of the samples were determined by X-ray fluorescence spectrometry (XRF), inductively coupled plasma optical emission spectrometry (ICP-OES), and scanning electron microscopy (SEM)-energy dispersive X-ray spectrometry (EDS) analyses. The microstructure of samples was studied by optical microscopy. Based on results of the analysis, a procedure for recycling PCBs is proposed. The emphasis was on the effects that can be achieved in the recycling process by extraction of some parts before the melting process. In addition, newly developed materials can be an adequate substitute for some of the dangerous and harmful materials, such as lead and arsenic are proposed, which is in accordance with the European Union (EU) Restriction of the use of certain hazardous substances (RoHS) directive as well as some alternative materials for use in the electronics industry instead of gold and gold alloys.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Characterization of PCBs from computers and mobile phones, and the proposal of newly developed materials for substitution of gold, lead and arsenic",
pages = "4292-4278",
number = "6",
volume = "20",
doi = "10.1007/s11356-012-1448-1"
}

Dervisević, I., Minić, D., Kamberović, Ž., Ćosović, V.,& Ristić, M.. (2013). Characterization of PCBs from computers and mobile phones, and the proposal of newly developed materials for substitution of gold, lead and arsenic. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 20(6), 4278-4292.
https://doi.org/10.1007/s11356-012-1448-1

Dervisević I, Minić D, Kamberović Ž, Ćosović V, Ristić M. Characterization of PCBs from computers and mobile phones, and the proposal of newly developed materials for substitution of gold, lead and arsenic. in Environmental Science and Pollution Research. 2013;20(6):4278-4292.
doi:10.1007/s11356-012-1448-1 .

Dervisević, Irma, Minić, Duško, Kamberović, Željko, Ćosović, Vladan, Ristić, Mirjana, "Characterization of PCBs from computers and mobile phones, and the proposal of newly developed materials for substitution of gold, lead and arsenic" in Environmental Science and Pollution Research, 20, no. 6 (2013):4278-4292,
https://doi.org/10.1007/s11356-012-1448-1 . .

TY  - JOUR
AU  - Stajić-Trošić, Jasna
AU  - Pešić, Olivera
AU  - Jordović, Branka
AU  - Maričić, Aleksandar
AU  - Jančić-Heinemann, Radmila
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Stevanović, Jasmina
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1829
AB  - Magnetic thin films based on iron group elements (Fe, Co, Ni) are currently used in computer's hard disk drives and in MEMS, whereas electrodeposition is a suitable method to obtain these materials. The powders of metals and alloys were obtained by electrochemical deposition at constant current density using alkaline ammonium electrolyte which consist one, two or three different elements Co, Ni and Mo. Ni and Co are deposited anomalously. The Mo element cannot be obtained electrochemically from the aqueous solutions. Electrochemical deposition of this metal is induced by codeposited iron-group metals, Ni and Co, for instance. This study investigates the influence of electrochemical parameters on composition and properties of obtained powders. Based on the obtained experimental results, it could be concluded that the particle size of deposited powders and chemical composition are influenced by the chemical composition of the electrolyte, with changing the concentration ratio of ions of metallic salts as well as current density imposed. As a consequence, the changes in magnetic properties are obvious. The structure and morphology of powders were investigated by Scanning Electron Microscopy (SEM). For demonstration of mechanism of powder deposition Image ProPlus software for SEM microphotograph analysis was used. The values of individual objects as well as formed clusters of powders were measured by this technique. The chemical composition of the powders was determinate using Energy Dispersive X-ray (EDX) analysis. XRD results suggested that obtained powders were of amorphous structure.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metalurgija
T1  - Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition
EP  - 102
IS  - 2
SP  - 95
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1829
ER  - 

@article{
author = "Stajić-Trošić, Jasna and Pešić, Olivera and Jordović, Branka and Maričić, Aleksandar and Jančić-Heinemann, Radmila and Ćosović, Vladan and Grujić, Aleksandar and Stevanović, Jasmina",
year = "2011",
abstract = "Magnetic thin films based on iron group elements (Fe, Co, Ni) are currently used in computer's hard disk drives and in MEMS, whereas electrodeposition is a suitable method to obtain these materials. The powders of metals and alloys were obtained by electrochemical deposition at constant current density using alkaline ammonium electrolyte which consist one, two or three different elements Co, Ni and Mo. Ni and Co are deposited anomalously. The Mo element cannot be obtained electrochemically from the aqueous solutions. Electrochemical deposition of this metal is induced by codeposited iron-group metals, Ni and Co, for instance. This study investigates the influence of electrochemical parameters on composition and properties of obtained powders. Based on the obtained experimental results, it could be concluded that the particle size of deposited powders and chemical composition are influenced by the chemical composition of the electrolyte, with changing the concentration ratio of ions of metallic salts as well as current density imposed. As a consequence, the changes in magnetic properties are obvious. The structure and morphology of powders were investigated by Scanning Electron Microscopy (SEM). For demonstration of mechanism of powder deposition Image ProPlus software for SEM microphotograph analysis was used. The values of individual objects as well as formed clusters of powders were measured by this technique. The chemical composition of the powders was determinate using Energy Dispersive X-ray (EDX) analysis. XRD results suggested that obtained powders were of amorphous structure.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition",
pages = "102-95",
number = "2",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1829"
}

Stajić-Trošić, J., Pešić, O., Jordović, B., Maričić, A., Jančić-Heinemann, R., Ćosović, V., Grujić, A.,& Stevanović, J.. (2011). Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 17(2), 95-102.
https://hdl.handle.net/21.15107/rcub_technorep_1829

Stajić-Trošić J, Pešić O, Jordović B, Maričić A, Jančić-Heinemann R, Ćosović V, Grujić A, Stevanović J. Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition. in Metalurgija. 2011;17(2):95-102.
https://hdl.handle.net/21.15107/rcub_technorep_1829 .

Stajić-Trošić, Jasna, Pešić, Olivera, Jordović, Branka, Maričić, Aleksandar, Jančić-Heinemann, Radmila, Ćosović, Vladan, Grujić, Aleksandar, Stevanović, Jasmina, "Structural properties of Co, Ni and Mo powders obtained by electrochemical deposition" in Metalurgija, 17, no. 2 (2011):95-102,
https://hdl.handle.net/21.15107/rcub_technorep_1829 .

TY  - JOUR
AU  - Talijan, Nadežda
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Grujić, Aleksandar
AU  - Živković, Dragana
AU  - Romhanji, Endre
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1072
AB  - The presented work covers part of experimental results of simultaneous study of microstructure, density, hardness and electrical conductivity of sintered electrical contact materials based of Ag- SnO2 with 8, 10 and 12 mass% SnO2. The mentioned characteristics were analyzed in the function of different sintering regimes and after additional mechanical treatment (forging and rolling). The influence of small addition of In2O3 (2.9 mass%) on the increase of dispersion of main oxide SnO2 in Ag matrix is observed and presented also.
PB  - University of Belgrade, Technical Faculty, Bor
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - Microstructure and properties of silver based cadmium free electrical contact materials
EP  - 176
IS  - 2
SP  - 171
VL  - 43
DO  - 10.2298/JMMB0702171T
ER  - 

@article{
author = "Talijan, Nadežda and Ćosović, Vladan and Stajić-Trošić, Jasna and Grujić, Aleksandar and Živković, Dragana and Romhanji, Endre",
year = "2007",
abstract = "The presented work covers part of experimental results of simultaneous study of microstructure, density, hardness and electrical conductivity of sintered electrical contact materials based of Ag- SnO2 with 8, 10 and 12 mass% SnO2. The mentioned characteristics were analyzed in the function of different sintering regimes and after additional mechanical treatment (forging and rolling). The influence of small addition of In2O3 (2.9 mass%) on the increase of dispersion of main oxide SnO2 in Ag matrix is observed and presented also.",
publisher = "University of Belgrade, Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Microstructure and properties of silver based cadmium free electrical contact materials",
pages = "176-171",
number = "2",
volume = "43",
doi = "10.2298/JMMB0702171T"
}

Talijan, N., Ćosović, V., Stajić-Trošić, J., Grujić, A., Živković, D.,& Romhanji, E.. (2007). Microstructure and properties of silver based cadmium free electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy
University of Belgrade, Technical Faculty, Bor., 43(2), 171-176.
https://doi.org/10.2298/JMMB0702171T

Talijan N, Ćosović V, Stajić-Trošić J, Grujić A, Živković D, Romhanji E. Microstructure and properties of silver based cadmium free electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy. 2007;43(2):171-176.
doi:10.2298/JMMB0702171T .

Talijan, Nadežda, Ćosović, Vladan, Stajić-Trošić, Jasna, Grujić, Aleksandar, Živković, Dragana, Romhanji, Endre, "Microstructure and properties of silver based cadmium free electrical contact materials" in Journal of Mining and Metallurgy B: Metallurgy, 43, no. 2 (2007):171-176,
https://doi.org/10.2298/JMMB0702171T . .

TY  - JOUR
AU  - Radojević, Vesna
AU  - Nedeljković, Dragutin
AU  - Grujić, Aleksandar
AU  - Talijan, Nadežda
AU  - Ćosović, Vladan
AU  - Aleksić, Radoslav
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1011
AB  - The optical fiber magnetic sensing element (OFMSE) based on the optical fiber coated with composite coating polymer-magnetic powder has been already introduced in magnetic field sensing. In this research, the rapid quenched Nd-Fe-B powder with Nd rich content was used as magneto-active component in composite coating. Magnetic powder was dispersed in poly-(ethylene-co-vinyl-acetate) - EVA solution in toluene. The influence of magnetic powder content (20, 30, 40 and 50 mass %) in composite coating of multimode optical fiber on the thickness, hardness and uniformity was observed and discussed. Sensitivity and reversibility of the constructed OFMSE in the external magnetic field are illustrated.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element
EP  - 2878
IS  - 9
SP  - 2873
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1011
ER  - 

@article{
author = "Radojević, Vesna and Nedeljković, Dragutin and Grujić, Aleksandar and Talijan, Nadežda and Ćosović, Vladan and Aleksić, Radoslav",
year = "2007",
abstract = "The optical fiber magnetic sensing element (OFMSE) based on the optical fiber coated with composite coating polymer-magnetic powder has been already introduced in magnetic field sensing. In this research, the rapid quenched Nd-Fe-B powder with Nd rich content was used as magneto-active component in composite coating. Magnetic powder was dispersed in poly-(ethylene-co-vinyl-acetate) - EVA solution in toluene. The influence of magnetic powder content (20, 30, 40 and 50 mass %) in composite coating of multimode optical fiber on the thickness, hardness and uniformity was observed and discussed. Sensitivity and reversibility of the constructed OFMSE in the external magnetic field are illustrated.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element",
pages = "2878-2873",
number = "9",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1011"
}

Radojević, V., Nedeljković, D., Grujić, A., Talijan, N., Ćosović, V.,& Aleksić, R.. (2007). Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 9(9), 2873-2878.
https://hdl.handle.net/21.15107/rcub_technorep_1011

Radojević V, Nedeljković D, Grujić A, Talijan N, Ćosović V, Aleksić R. Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element. in Journal of Optoelectronics and Advanced Materials. 2007;9(9):2873-2878.
https://hdl.handle.net/21.15107/rcub_technorep_1011 .

Radojević, Vesna, Nedeljković, Dragutin, Grujić, Aleksandar, Talijan, Nadežda, Ćosović, Vladan, Aleksić, Radoslav, "Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element" in Journal of Optoelectronics and Advanced Materials, 9, no. 9 (2007):2873-2878,
https://hdl.handle.net/21.15107/rcub_technorep_1011 .

TY  - JOUR
AU  - Radojević, Vesna
AU  - Nedeljković, Dragutin
AU  - Grujić, Aleksandar
AU  - Talijan, Nadežda
AU  - Ćosović, Vladan
AU  - Aleksić, Radoslav
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1010
AB  - The optical fiber magnetic sensing element (OFMSE) based on the optical fiber coated with composite coating polymermagnetic powder has been already introduced in magnetic field sensing. In this research, the rapid quenched Nd-Fe-B powder with Nd rich content was used as magneto-active component in composite coating. Magnetic powder was dispersed in poly-(ethylene-co-vinyl-acetate) - EVA solution in toluene, The influence of magnetic powder content (20, 30, 40 and 50 mass %) in composite coating of multimode optical fiber on the thickness, hardness and uniformity was observed and discussed. Sensitivity and reversibility of the constructed OFMSE in the external magnetic field are illustrated.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element
EP  - 2429
IS  - 8
SP  - 2424
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1010
ER  - 

@article{
author = "Radojević, Vesna and Nedeljković, Dragutin and Grujić, Aleksandar and Talijan, Nadežda and Ćosović, Vladan and Aleksić, Radoslav",
year = "2007",
abstract = "The optical fiber magnetic sensing element (OFMSE) based on the optical fiber coated with composite coating polymermagnetic powder has been already introduced in magnetic field sensing. In this research, the rapid quenched Nd-Fe-B powder with Nd rich content was used as magneto-active component in composite coating. Magnetic powder was dispersed in poly-(ethylene-co-vinyl-acetate) - EVA solution in toluene, The influence of magnetic powder content (20, 30, 40 and 50 mass %) in composite coating of multimode optical fiber on the thickness, hardness and uniformity was observed and discussed. Sensitivity and reversibility of the constructed OFMSE in the external magnetic field are illustrated.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element",
pages = "2429-2424",
number = "8",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1010"
}

Radojević, V., Nedeljković, D., Grujić, A., Talijan, N., Ćosović, V.,& Aleksić, R.. (2007). Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 9(8), 2424-2429.
https://hdl.handle.net/21.15107/rcub_technorep_1010

Radojević V, Nedeljković D, Grujić A, Talijan N, Ćosović V, Aleksić R. Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element. in Journal of Optoelectronics and Advanced Materials. 2007;9(8):2424-2429.
https://hdl.handle.net/21.15107/rcub_technorep_1010 .

Radojević, Vesna, Nedeljković, Dragutin, Grujić, Aleksandar, Talijan, Nadežda, Ćosović, Vladan, Aleksić, Radoslav, "Influence of composition of the magnetic composite coating on the performance of the optical fiber magnetic field sensing element" in Journal of Optoelectronics and Advanced Materials, 9, no. 8 (2007):2424-2429,
https://hdl.handle.net/21.15107/rcub_technorep_1010 .

TY  - JOUR
AU  - Nedeljković, Dragutin
AU  - Radojević, Vesna
AU  - Ćosović, Vladan
AU  - Serbez, Tatjana
AU  - Talijan, Nadezda
AU  - Aleksić, Radoslav
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/879
AB  - A multimode optical fiber with a composite polymer-magnetic coating was investigated as an optical fiber magnetic sensing element (OFMSE) for detecting external magnetic fields. The coating was formed by dispersing the magnetic powder Nd-Fe-B in poly-(ethylene-co-vinyl acetate)-EVA solution in toluene. The influence of an applied magnetic field on the change in intensity of a light signal propagated through the OFMSE constructed was investigated. In this study, the influence of the magnetic powder concentration in the composite coating on optical propagation characteristics of the modified optical fiber with the composite polymer-magnetic coating was investigated.
PB  - MYU
T2  - Sensors and Materials
T1  - Application of permanent magnetic powder for magnetic field sensing elements
EP  - 070
IS  - 2
SP  - 063
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_technorep_879
ER  - 

@article{
author = "Nedeljković, Dragutin and Radojević, Vesna and Ćosović, Vladan and Serbez, Tatjana and Talijan, Nadezda and Aleksić, Radoslav",
year = "2006",
abstract = "A multimode optical fiber with a composite polymer-magnetic coating was investigated as an optical fiber magnetic sensing element (OFMSE) for detecting external magnetic fields. The coating was formed by dispersing the magnetic powder Nd-Fe-B in poly-(ethylene-co-vinyl acetate)-EVA solution in toluene. The influence of an applied magnetic field on the change in intensity of a light signal propagated through the OFMSE constructed was investigated. In this study, the influence of the magnetic powder concentration in the composite coating on optical propagation characteristics of the modified optical fiber with the composite polymer-magnetic coating was investigated.",
publisher = "MYU",
journal = "Sensors and Materials",
title = "Application of permanent magnetic powder for magnetic field sensing elements",
pages = "070-063",
number = "2",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_technorep_879"
}

Nedeljković, D., Radojević, V., Ćosović, V., Serbez, T., Talijan, N.,& Aleksić, R.. (2006). Application of permanent magnetic powder for magnetic field sensing elements. in Sensors and Materials
MYU., 18(2), 063-070.
https://hdl.handle.net/21.15107/rcub_technorep_879

Nedeljković D, Radojević V, Ćosović V, Serbez T, Talijan N, Aleksić R. Application of permanent magnetic powder for magnetic field sensing elements. in Sensors and Materials. 2006;18(2):063-070.
https://hdl.handle.net/21.15107/rcub_technorep_879 .

Nedeljković, Dragutin, Radojević, Vesna, Ćosović, Vladan, Serbez, Tatjana, Talijan, Nadezda, Aleksić, Radoslav, "Application of permanent magnetic powder for magnetic field sensing elements" in Sensors and Materials, 18, no. 2 (2006):063-070,
https://hdl.handle.net/21.15107/rcub_technorep_879 .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Talijan, Nadežda
AU  - Maričić, Aleksa M.
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Vladan
AU  - Radojević, Vesna
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/789
AB  - As a part of these experimental investigations of melt-spun Nd-Fe-B alloy with Nd rich content in relation to Nd2Fe14B prepared by rapid quenching process for optimally selected cooling rate and heat treatment, the influence of the chosen chemical composition on magnetic properties was observed. The results of X-ray diffraction, Mössbauer spectroscopy phase analysis and magnetic measurement of investigated melt-spun Nd14.5Fe78.5B7 alloy are presented to bring some new information concerning the relation between their structure and magnetic properties.
AB  - Istraživana melt-spun Nd14,5Fe78,5B7 legura sa sadržajem Nd iznad stehiometrijskog sastava Nd2Fe14B, dobijena je metodom brzog hlađenja, optimalno odabranom brzinom hlađenja. Razmotren je uticaj hemijskog sastava i primenjenog režima termičke obrade na magnetna svojstva. Eksperimentalni rezultati XRD analize i Mössbauer spektroskopske fazne analize korelisani su sa izmerenim magnetnim osobinama u cilju dobijanja novih saznanja za tumačenje relacije mikrostruktura - magnetna svojstva.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy
EP  - 145
IS  - 2
SP  - 139
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_technorep_789
ER  - 

@article{
author = "Grujić, Aleksandar and Talijan, Nadežda and Maričić, Aleksa M. and Stajić-Trošić, Jasna and Ćosović, Vladan and Radojević, Vesna",
year = "2005",
abstract = "As a part of these experimental investigations of melt-spun Nd-Fe-B alloy with Nd rich content in relation to Nd2Fe14B prepared by rapid quenching process for optimally selected cooling rate and heat treatment, the influence of the chosen chemical composition on magnetic properties was observed. The results of X-ray diffraction, Mössbauer spectroscopy phase analysis and magnetic measurement of investigated melt-spun Nd14.5Fe78.5B7 alloy are presented to bring some new information concerning the relation between their structure and magnetic properties., Istraživana melt-spun Nd14,5Fe78,5B7 legura sa sadržajem Nd iznad stehiometrijskog sastava Nd2Fe14B, dobijena je metodom brzog hlađenja, optimalno odabranom brzinom hlađenja. Razmotren je uticaj hemijskog sastava i primenjenog režima termičke obrade na magnetna svojstva. Eksperimentalni rezultati XRD analize i Mössbauer spektroskopske fazne analize korelisani su sa izmerenim magnetnim osobinama u cilju dobijanja novih saznanja za tumačenje relacije mikrostruktura - magnetna svojstva.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy",
pages = "145-139",
number = "2",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_technorep_789"
}

Grujić, A., Talijan, N., Maričić, A. M., Stajić-Trošić, J., Ćosović, V.,& Radojević, V.. (2005). Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 37(2), 139-145.
https://hdl.handle.net/21.15107/rcub_technorep_789

Grujić A, Talijan N, Maričić AM, Stajić-Trošić J, Ćosović V, Radojević V. Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy. in Science of Sintering. 2005;37(2):139-145.
https://hdl.handle.net/21.15107/rcub_technorep_789 .

Grujić, Aleksandar, Talijan, Nadežda, Maričić, Aleksa M., Stajić-Trošić, Jasna, Ćosović, Vladan, Radojević, Vesna, "Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy" in Science of Sintering, 37, no. 2 (2005):139-145,
https://hdl.handle.net/21.15107/rcub_technorep_789 .