TY  - JOUR
AU  - Ćosović, Aleksandar R.
AU  - Žak, Tomas
AU  - Glisic, Sandra B
AU  - Sokic, Miroslav D
AU  - Lazarević, Slavica
AU  - Ćosović, Vladan
AU  - Orlovic, Aleksandar M
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2009
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
T2  - Journal of Supercritical Fluids
T1  - Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol
VL  - 113
SP  - 96
EP  - 105
DO  - 10.1016/j.supflu.2016.03.014
ER  - 

@article{
author = "Ćosović, Aleksandar R. and Žak, Tomas and Glisic, Sandra B and Sokic, Miroslav D and Lazarević, Slavica and Ćosović, Vladan and Orlovic, Aleksandar M",
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",
journal = "Journal of Supercritical Fluids",
title = "Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol",
volume = "113",
pages = "96-105",
doi = "10.1016/j.supflu.2016.03.014"
}

Ćosović, A. R., Žak, T., Glisic, S. B., Sokic, M. D., Lazarević, S., Ćosović, V.,& Orlovic, A. M.. (2016). Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol. in Journal of Supercritical Fluids
Elsevier., 113, 96-105.
https://doi.org/10.1016/j.supflu.2016.03.014

Ćosović AR, Žak T, Glisic SB, Sokic MD, Lazarević S, Ćosović V, Orlovic AM. 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 R., Žak, Tomas, Glisic, Sandra B, Sokic, Miroslav D, Lazarević, Slavica, Ćosović, Vladan, Orlovic, Aleksandar M, "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  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Ćosović, Aleksandar R.
AU  - Živković, Dragana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1003
AB  - The presented study gives a brief overview of the experimental results of investigations of different production technologies of silver-metal oxide electrical contact materials in relation: processing method - properties. The two most common routes of production, i.e. internal oxidation/ingot metallurgy and powder metallurgy are demonstrated on the example of Ag-CdO and Ag-ZnO materials. For illustration of alternative processing routes that provide higher dispersion of metal-oxide particles in silver matrix more environmentally friendly Ag-SnO2 contact materials are used. Processing of electrical contact materials by mechanical mixing of starting powders in high energy ball mill is presented. The obtained experimental results of application of different methods of introduction of SnO2 nanoparticles in the silver matrix such as conventional powder metallurgy mixing and template method are given and discussed in terms of their influence on microstructure and physical properties (density, hardness and electrical conductivity) of the prepared Ag-SnO2 electrical contact materials.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical and Materials Engineering
T1  - Processing and properties of silver-metal oxide electrical contact materials
VL  - 18
IS  - 4
SP  - 259
EP  - 272
UR  - https://hdl.handle.net/21.15107/rcub_cer_1003
ER  - 

@article{
author = "Talijan, Nadežda M. and Ćosović, Vladan and Ćosović, Aleksandar R. and Živković, Dragana",
year = "2012",
abstract = "The presented study gives a brief overview of the experimental results of investigations of different production technologies of silver-metal oxide electrical contact materials in relation: processing method - properties. The two most common routes of production, i.e. internal oxidation/ingot metallurgy and powder metallurgy are demonstrated on the example of Ag-CdO and Ag-ZnO materials. For illustration of alternative processing routes that provide higher dispersion of metal-oxide particles in silver matrix more environmentally friendly Ag-SnO2 contact materials are used. Processing of electrical contact materials by mechanical mixing of starting powders in high energy ball mill is presented. The obtained experimental results of application of different methods of introduction of SnO2 nanoparticles in the silver matrix such as conventional powder metallurgy mixing and template method are given and discussed in terms of their influence on microstructure and physical properties (density, hardness and electrical conductivity) of the prepared Ag-SnO2 electrical contact materials.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical and Materials Engineering",
title = "Processing and properties of silver-metal oxide electrical contact materials",
volume = "18",
number = "4",
pages = "259-272",
url = "https://hdl.handle.net/21.15107/rcub_cer_1003"
}

Talijan, N. M., Ćosović, V., Ćosović, A. R.,& Živković, D.. (2012). Processing and properties of silver-metal oxide electrical contact materials. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia., 18(4), 259-272.
https://hdl.handle.net/21.15107/rcub_cer_1003

Talijan NM, Ćosović V, Ćosović AR, Živković D. Processing and properties of silver-metal oxide electrical contact materials. in Metallurgical and Materials Engineering. 2012;18(4):259-272.
https://hdl.handle.net/21.15107/rcub_cer_1003 .

Talijan, Nadežda M., Ćosović, Vladan, Ćosović, Aleksandar R., Živković, Dragana, "Processing and properties of silver-metal oxide electrical contact materials" in Metallurgical and Materials Engineering, 18, no. 4 (2012):259-272,
https://hdl.handle.net/21.15107/rcub_cer_1003 .