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  - Dimitrijević, Stevan P.
AU  - Manasijević, Dragan
AU  - Kamberović, Željko
AU  - Dimitrijević, Silvana B.
AU  - Mitrić, Miodrag
AU  - Gorgievski, Milan
AU  - Mladenović, Srba
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4015
AB  - Microstructure and phase transitions of selected brazing alloys from the Ag-Cu-Zn ternary system were investigated. Four ternary alloys with silver content in the compositional range from 25 to 60 wt.% were studied using x-ray diffraction (XRD) and scanning electron microscopy coupled with the energy-dispersive spectroscopy (SEM-EDS). Phase transitions of the investigated alloys were measured using differential scanning calorimetry (DSC). Experimentally obtained results were compared with the results of a thermodynamic calculation of the phase equilibria according to the CALPHAD method. The experiments confirmed the optimized thermodynamic parameters for the calculations from the thermodynamic assessment in literature. Phase compositions, liquidus and solidus temperatures were confirmed by the EDS and DTA methods. Additionally, the calculated solidification paths and predicted phase transformations were in agreement with the SEM images.
PB  - Springer
T2  - Journal of Materials Engineering and Performance
T1  - Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys
EP  - 1579
IS  - 4
SP  - 1570
VL  - 27
DO  - 10.1007/s11665-018-3258-1
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Manasijević, Dragan and Kamberović, Željko and Dimitrijević, Silvana B. and Mitrić, Miodrag and Gorgievski, Milan and Mladenović, Srba",
year = "2018",
abstract = "Microstructure and phase transitions of selected brazing alloys from the Ag-Cu-Zn ternary system were investigated. Four ternary alloys with silver content in the compositional range from 25 to 60 wt.% were studied using x-ray diffraction (XRD) and scanning electron microscopy coupled with the energy-dispersive spectroscopy (SEM-EDS). Phase transitions of the investigated alloys were measured using differential scanning calorimetry (DSC). Experimentally obtained results were compared with the results of a thermodynamic calculation of the phase equilibria according to the CALPHAD method. The experiments confirmed the optimized thermodynamic parameters for the calculations from the thermodynamic assessment in literature. Phase compositions, liquidus and solidus temperatures were confirmed by the EDS and DTA methods. Additionally, the calculated solidification paths and predicted phase transformations were in agreement with the SEM images.",
publisher = "Springer",
journal = "Journal of Materials Engineering and Performance",
title = "Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys",
pages = "1579-1570",
number = "4",
volume = "27",
doi = "10.1007/s11665-018-3258-1"
}

Dimitrijević, S. P., Manasijević, D., Kamberović, Ž., Dimitrijević, S. B., Mitrić, M., Gorgievski, M.,& Mladenović, S.. (2018). Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys. in Journal of Materials Engineering and Performance
Springer., 27(4), 1570-1579.
https://doi.org/10.1007/s11665-018-3258-1

Dimitrijević SP, Manasijević D, Kamberović Ž, Dimitrijević SB, Mitrić M, Gorgievski M, Mladenović S. Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys. in Journal of Materials Engineering and Performance. 2018;27(4):1570-1579.
doi:10.1007/s11665-018-3258-1 .

Dimitrijević, Stevan P., Manasijević, Dragan, Kamberović, Željko, Dimitrijević, Silvana B., Mitrić, Miodrag, Gorgievski, Milan, Mladenović, Srba, "Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys" in Journal of Materials Engineering and Performance, 27, no. 4 (2018):1570-1579,
https://doi.org/10.1007/s11665-018-3258-1 . .

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  - Serbula, S.
AU  - Stanković, V.
AU  - Živković, Dragana
AU  - Kamberović, Željko
AU  - Gorgievski, Milan
AU  - Kalinović, T.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3328
AB  - Wastewaters produced by mining and metallurgical treatment of polymetallic sulfide ores have polluted the Timok River in Serbia for more than 100 years. We have characterized seven different wastewater streams within the RTB Bor facilities, investigating their influence on pollution of the Timok River before its confluence with the Danube River. Their relative contribution was calculated by considering the contaminant load of each wastewater stream and non-conservative transport along their flow paths. Three sampling spots in the Timok River, before and after its confluence with the Borska River, were also monitored.
PB  - Springer Heidelberg, Heidelberg
T2  - Mine Water and the Environment
T1  - Characteristics of Wastewater Streams Within the Bor Copper Mine and Their Influence on Pollution of the Timok River, Serbia
EP  - 485
IS  - 4
SP  - 480
VL  - 35
DO  - 10.1007/s10230-016-0392-6
ER  - 

@article{
author = "Serbula, S. and Stanković, V. and Živković, Dragana and Kamberović, Željko and Gorgievski, Milan and Kalinović, T.",
year = "2016",
abstract = "Wastewaters produced by mining and metallurgical treatment of polymetallic sulfide ores have polluted the Timok River in Serbia for more than 100 years. We have characterized seven different wastewater streams within the RTB Bor facilities, investigating their influence on pollution of the Timok River before its confluence with the Danube River. Their relative contribution was calculated by considering the contaminant load of each wastewater stream and non-conservative transport along their flow paths. Three sampling spots in the Timok River, before and after its confluence with the Borska River, were also monitored.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Mine Water and the Environment",
title = "Characteristics of Wastewater Streams Within the Bor Copper Mine and Their Influence on Pollution of the Timok River, Serbia",
pages = "485-480",
number = "4",
volume = "35",
doi = "10.1007/s10230-016-0392-6"
}

Serbula, S., Stanković, V., Živković, D., Kamberović, Ž., Gorgievski, M.,& Kalinović, T.. (2016). Characteristics of Wastewater Streams Within the Bor Copper Mine and Their Influence on Pollution of the Timok River, Serbia. in Mine Water and the Environment
Springer Heidelberg, Heidelberg., 35(4), 480-485.
https://doi.org/10.1007/s10230-016-0392-6

Serbula S, Stanković V, Živković D, Kamberović Ž, Gorgievski M, Kalinović T. Characteristics of Wastewater Streams Within the Bor Copper Mine and Their Influence on Pollution of the Timok River, Serbia. in Mine Water and the Environment. 2016;35(4):480-485.
doi:10.1007/s10230-016-0392-6 .

Serbula, S., Stanković, V., Živković, Dragana, Kamberović, Željko, Gorgievski, Milan, Kalinović, T., "Characteristics of Wastewater Streams Within the Bor Copper Mine and Their Influence on Pollution of the Timok River, Serbia" in Mine Water and the Environment, 35, no. 4 (2016):480-485,
https://doi.org/10.1007/s10230-016-0392-6 . .

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  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5778
AB  - Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.
PB  - Electrochemical Science Group
T2  - International Journal of Electrochemical Science
T1  - Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways
EP  - 8366
IS  - 12
SP  - 8355
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_cer_1415
ER  - 

@article{
author = "Pavlović, Miroslav M. and Pavlović, Miomir and Ćosović, Vladan and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2014",
abstract = "Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.",
publisher = "Electrochemical Science Group",
journal = "International Journal of Electrochemical Science",
title = "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways",
pages = "8366-8355",
number = "12",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_cer_1415"
}

Pavlović, M. M., Pavlović, M., Ćosović, V., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2014). Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science
Electrochemical Science Group., 9(12), 8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415

Pavlović MM, Pavlović M, Ćosović V, Bojanić V, Nikolić ND, Aleksić R. Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science. 2014;9(12):8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415 .

Pavlović, Miroslav M., Pavlović, Miomir, Ćosović, Vladan, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways" in International Journal of Electrochemical Science, 9, no. 12 (2014):8355-8366,
https://hdl.handle.net/21.15107/rcub_cer_1415 .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Ćosović, Vladan
AU  - Pavlović, Miomir
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5682
AB  - This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold
EP  - 8893
IS  - 9
SP  - 8883
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_cer_1027
ER  - 

@article{
author = "Pavlović, Miroslav M. and Ćosović, Vladan and Pavlović, Miomir and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2012",
abstract = "This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold",
pages = "8893-8883",
number = "9",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_cer_1027"
}

Pavlović, M. M., Ćosović, V., Pavlović, M., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2012). Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science
Esg, Belgrade., 7(9), 8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027

Pavlović MM, Ćosović V, Pavlović M, Bojanić V, Nikolić ND, Aleksić R. Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science. 2012;7(9):8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027 .

Pavlović, Miroslav M., Ćosović, Vladan, Pavlović, Miomir, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold" in International Journal of Electrochemical Science, 7, no. 9 (2012):8883-8893,
https://hdl.handle.net/21.15107/rcub_cer_1027 .

TY  - JOUR
AU  - Dervisević, Irma
AU  - Minić, Duško
AU  - Talijan, Nadežda
AU  - Ristić, Mirjana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1877
AB  - Phase diagram of the ternary Au-Cu-Sb system was investigated experimentally by DTA and SEM-EDS methods and analytically by CALPHAD method. The liquids projection, invariant equilibrium, several vertical sections and isothermal section at 300 degrees C were predicted using COST 531 thermodynamic database. Phase transition temperatures of alloys along four predicted vertical sections of the Au-Cu-Sb ternary system with molar ratios Au:Cu = 1, Cu:Sb = 1, Au:Sb = 1 and x(Au) = 0.2 were measured by DTA (differential thermal analysis). Predicted isothermal section at 300 degrees C was compared with the results of the SEM (scanning electron microscope) with EDS (energy dispersive spectrometry) analysis from this work This Au-Cu-Sb system belongs to the group of gold alloys, as potential candidates for new lead-free solder materials.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Experimental investigation and thermodynamic prediction of the Au-Cu-Sb phase diagram
EP  - 456
IS  - 1-2
SP  - 451
VL  - 129
DO  - 10.1016/j.matchemphys.2011.04.049
ER  - 

@article{
author = "Dervisević, Irma and Minić, Duško and Talijan, Nadežda and Ristić, Mirjana",
year = "2011",
abstract = "Phase diagram of the ternary Au-Cu-Sb system was investigated experimentally by DTA and SEM-EDS methods and analytically by CALPHAD method. The liquids projection, invariant equilibrium, several vertical sections and isothermal section at 300 degrees C were predicted using COST 531 thermodynamic database. Phase transition temperatures of alloys along four predicted vertical sections of the Au-Cu-Sb ternary system with molar ratios Au:Cu = 1, Cu:Sb = 1, Au:Sb = 1 and x(Au) = 0.2 were measured by DTA (differential thermal analysis). Predicted isothermal section at 300 degrees C was compared with the results of the SEM (scanning electron microscope) with EDS (energy dispersive spectrometry) analysis from this work This Au-Cu-Sb system belongs to the group of gold alloys, as potential candidates for new lead-free solder materials.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Experimental investigation and thermodynamic prediction of the Au-Cu-Sb phase diagram",
pages = "456-451",
number = "1-2",
volume = "129",
doi = "10.1016/j.matchemphys.2011.04.049"
}

Dervisević, I., Minić, D., Talijan, N.,& Ristić, M.. (2011). Experimental investigation and thermodynamic prediction of the Au-Cu-Sb phase diagram. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 129(1-2), 451-456.
https://doi.org/10.1016/j.matchemphys.2011.04.049

Dervisević I, Minić D, Talijan N, Ristić M. Experimental investigation and thermodynamic prediction of the Au-Cu-Sb phase diagram. in Materials Chemistry and Physics. 2011;129(1-2):451-456.
doi:10.1016/j.matchemphys.2011.04.049 .

Dervisević, Irma, Minić, Duško, Talijan, Nadežda, Ristić, Mirjana, "Experimental investigation and thermodynamic prediction of the Au-Cu-Sb phase diagram" in Materials Chemistry and Physics, 129, no. 1-2 (2011):451-456,
https://doi.org/10.1016/j.matchemphys.2011.04.049 . .