Logar, Mihovil

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Authority KeyName Variants
orcid::0000-0002-4284-5699
  • Logar, Mihovil (13)
  • Logar, Mihovil M. (1)

Author's Bibliography

Application of the final flotation waste for obtaining the glass-ceramic materials

Cocić, Mira; Logar, Mihovil; Erić, Suzana; Tasić, Viša; Dević, Snežana; Cocić, Saša; Matović, Branko

(2017)

TY  - JOUR
AU  - Cocić, Mira
AU  - Logar, Mihovil
AU  - Erić, Suzana
AU  - Tasić, Viša
AU  - Dević, Snežana
AU  - Cocić, Saša
AU  - Matović, Branko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10336
AB  - This work describes the investigation of the final flotation waste (FFW), originating from the RTB Bor Company (Serbia), as the main component for the production of glass-ceramic materials. The glass-ceramics was synthesized by the sintering of FFW, mixtures of FFW with basalt (10%, 20%, and 40%), and mixtures of FFW with tuff (20% and 40%). The sintering was conducted at the different temperatures and with the different time duration in order to find the optimal composition and conditions for crystallization. The increase of temperature, from 1100 to 1480°C, and sintering time, from 4 to 6h resulted in a higher content of hematite crystal in the obtained glass-ceramic (up to 44%). The glass-ceramics sintered from pure FFW (1080°C/36h) has good mechanical properties, such as high propagation speed (4500 m/s) and hardness (10800 MPa), as well as very good thermal stability. The glass-ceramics obtained from mixtures shows weaker mechanical properties compared to that obtained from pure FFW. The mixtures of FFW with tuff have a significantly lower bulk density compared to other obtained glass-ceramics. Our results indicate that FFW can be applied as a basis for obtaining the construction materials.
T2  - Science of Sintering
T1  - Application of the final flotation waste for obtaining the glass-ceramic materials
VL  - 49
IS  - 4
SP  - 431
EP  - 443
DO  - 10.2298/SOS1704431C
ER  - 
@article{
author = "Cocić, Mira and Logar, Mihovil and Erić, Suzana and Tasić, Viša and Dević, Snežana and Cocić, Saša and Matović, Branko",
year = "2017",
abstract = "This work describes the investigation of the final flotation waste (FFW), originating from the RTB Bor Company (Serbia), as the main component for the production of glass-ceramic materials. The glass-ceramics was synthesized by the sintering of FFW, mixtures of FFW with basalt (10%, 20%, and 40%), and mixtures of FFW with tuff (20% and 40%). The sintering was conducted at the different temperatures and with the different time duration in order to find the optimal composition and conditions for crystallization. The increase of temperature, from 1100 to 1480°C, and sintering time, from 4 to 6h resulted in a higher content of hematite crystal in the obtained glass-ceramic (up to 44%). The glass-ceramics sintered from pure FFW (1080°C/36h) has good mechanical properties, such as high propagation speed (4500 m/s) and hardness (10800 MPa), as well as very good thermal stability. The glass-ceramics obtained from mixtures shows weaker mechanical properties compared to that obtained from pure FFW. The mixtures of FFW with tuff have a significantly lower bulk density compared to other obtained glass-ceramics. Our results indicate that FFW can be applied as a basis for obtaining the construction materials.",
journal = "Science of Sintering",
title = "Application of the final flotation waste for obtaining the glass-ceramic materials",
volume = "49",
number = "4",
pages = "431-443",
doi = "10.2298/SOS1704431C"
}
Cocić, M., Logar, M., Erić, S., Tasić, V., Dević, S., Cocić, S.,& Matović, B.. (2017). Application of the final flotation waste for obtaining the glass-ceramic materials. in Science of Sintering, 49(4), 431-443.
https://doi.org/10.2298/SOS1704431C
Cocić M, Logar M, Erić S, Tasić V, Dević S, Cocić S, Matović B. Application of the final flotation waste for obtaining the glass-ceramic materials. in Science of Sintering. 2017;49(4):431-443.
doi:10.2298/SOS1704431C .
Cocić, Mira, Logar, Mihovil, Erić, Suzana, Tasić, Viša, Dević, Snežana, Cocić, Saša, Matović, Branko, "Application of the final flotation waste for obtaining the glass-ceramic materials" in Science of Sintering, 49, no. 4 (2017):431-443,
https://doi.org/10.2298/SOS1704431C . .
1
3

Final Flotation Waste Kinetics of Sintering at Different Heating Regimes

Cocic, Mira; Logar, Mihovil; Matović, Branko; Devic, Snezana; Volkov-Husović, Tatjana; Cocic, Sasa; Tasic, Visa

(2016)

TY  - JOUR
AU  - Cocic, Mira
AU  - Logar, Mihovil
AU  - Matović, Branko
AU  - Devic, Snezana
AU  - Volkov-Husović, Tatjana
AU  - Cocic, Sasa
AU  - Tasic, Visa
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1228
AB  - In the copper extraction, especially during the process of flotation enrichment and the pyrometallurgical processing, the waste materials that represent huge polluters of environment are being generated. In order to examine the application of Final flotation waste (FFW) in the manufacturing of new materials from the glass-ceramic group phase and mineral composition were examined as well as thermal properties. FFW kinetics of sintering has been tested at different dyamics (1 degrees C/min, 29 degrees C/min and 43 degrees C/min), in order to find the optimum conditions for sintering with a minimum amount of energy and time consumption. The samples were examined using: X-ray diffraction, X-ray fluorescence analysis, SEM (Scanning Electron Microscopy) and thermal microscopy. The best results for the production of glass ceramic materials were obtained during the sintering at heating regime of 29 degrees C/min.
T2  - Science of Sintering
T1  - Final Flotation Waste Kinetics of Sintering at Different Heating Regimes
VL  - 48
IS  - 2
SP  - 197
EP  - 208
DO  - 10.2298/SOS1602197C
ER  - 
@article{
author = "Cocic, Mira and Logar, Mihovil and Matović, Branko and Devic, Snezana and Volkov-Husović, Tatjana and Cocic, Sasa and Tasic, Visa",
year = "2016",
abstract = "In the copper extraction, especially during the process of flotation enrichment and the pyrometallurgical processing, the waste materials that represent huge polluters of environment are being generated. In order to examine the application of Final flotation waste (FFW) in the manufacturing of new materials from the glass-ceramic group phase and mineral composition were examined as well as thermal properties. FFW kinetics of sintering has been tested at different dyamics (1 degrees C/min, 29 degrees C/min and 43 degrees C/min), in order to find the optimum conditions for sintering with a minimum amount of energy and time consumption. The samples were examined using: X-ray diffraction, X-ray fluorescence analysis, SEM (Scanning Electron Microscopy) and thermal microscopy. The best results for the production of glass ceramic materials were obtained during the sintering at heating regime of 29 degrees C/min.",
journal = "Science of Sintering",
title = "Final Flotation Waste Kinetics of Sintering at Different Heating Regimes",
volume = "48",
number = "2",
pages = "197-208",
doi = "10.2298/SOS1602197C"
}
Cocic, M., Logar, M., Matović, B., Devic, S., Volkov-Husović, T., Cocic, S.,& Tasic, V.. (2016). Final Flotation Waste Kinetics of Sintering at Different Heating Regimes. in Science of Sintering, 48(2), 197-208.
https://doi.org/10.2298/SOS1602197C
Cocic M, Logar M, Matović B, Devic S, Volkov-Husović T, Cocic S, Tasic V. Final Flotation Waste Kinetics of Sintering at Different Heating Regimes. in Science of Sintering. 2016;48(2):197-208.
doi:10.2298/SOS1602197C .
Cocic, Mira, Logar, Mihovil, Matović, Branko, Devic, Snezana, Volkov-Husović, Tatjana, Cocic, Sasa, Tasic, Visa, "Final Flotation Waste Kinetics of Sintering at Different Heating Regimes" in Science of Sintering, 48, no. 2 (2016):197-208,
https://doi.org/10.2298/SOS1602197C . .
1
1
2

Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure

Rosić, Milena; Logar, Mihovil; Zagorac, Jelena B.; Devečerski, Aleksandar; Egelja, Adela; Kusigerski, Vladan; Spasojević, Vojislav; Matović, Branko

(2013)

TY  - JOUR
AU  - Rosić, Milena
AU  - Logar, Mihovil
AU  - Zagorac, Jelena B.
AU  - Devečerski, Aleksandar
AU  - Egelja, Adela
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Matović, Branko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5259
AB  - The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and Ca0.8Gd0.2MnO3 were prepared using a modified glycine nitrate procedure. Obtained powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. All samples where characterized by DTA, XRD and SQUID magnetometry. The possibility of incorporation of Gd ions in the positions A of the perovskite structure was investigated by X-ray methods. Influence of Gd on unit cell volume of the perovskite compounds, occupation numbers and distances between atoms were analyzed by Rietveld refinement. Microstructure size strain analysis was performed, as well. The results revealed that Gd entered positions A in the structure. Magnetic measurements showed that a Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure
VL  - 39
IS  - 2
SP  - 1853
EP  - 1861
DO  - 10.1016/j.ceramint.2012.08.033
ER  - 
@article{
author = "Rosić, Milena and Logar, Mihovil and Zagorac, Jelena B. and Devečerski, Aleksandar and Egelja, Adela and Kusigerski, Vladan and Spasojević, Vojislav and Matović, Branko",
year = "2013",
abstract = "The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and Ca0.8Gd0.2MnO3 were prepared using a modified glycine nitrate procedure. Obtained powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. All samples where characterized by DTA, XRD and SQUID magnetometry. The possibility of incorporation of Gd ions in the positions A of the perovskite structure was investigated by X-ray methods. Influence of Gd on unit cell volume of the perovskite compounds, occupation numbers and distances between atoms were analyzed by Rietveld refinement. Microstructure size strain analysis was performed, as well. The results revealed that Gd entered positions A in the structure. Magnetic measurements showed that a Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure",
volume = "39",
number = "2",
pages = "1853-1861",
doi = "10.1016/j.ceramint.2012.08.033"
}
Rosić, M., Logar, M., Zagorac, J. B., Devečerski, A., Egelja, A., Kusigerski, V., Spasojević, V.,& Matović, B.. (2013). Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure. in Ceramics International, 39(2), 1853-1861.
https://doi.org/10.1016/j.ceramint.2012.08.033
Rosić M, Logar M, Zagorac JB, Devečerski A, Egelja A, Kusigerski V, Spasojević V, Matović B. Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure. in Ceramics International. 2013;39(2):1853-1861.
doi:10.1016/j.ceramint.2012.08.033 .
Rosić, Milena, Logar, Mihovil, Zagorac, Jelena B., Devečerski, Aleksandar, Egelja, Adela, Kusigerski, Vladan, Spasojević, Vojislav, Matović, Branko, "Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure" in Ceramics International, 39, no. 2 (2013):1853-1861,
https://doi.org/10.1016/j.ceramint.2012.08.033 . .
16
12
15

Characterization of bentonite clay from 'Greda' deposit

Stanković, Nadežda; Logar, Mihovil; Luković, Jelena; Pantić, Jelena; Miljević, Miljana; Babić, Biljana; Radosavljević-Mihajlović, Ana

(2011)

TY  - JOUR
AU  - Stanković, Nadežda
AU  - Logar, Mihovil
AU  - Luković, Jelena
AU  - Pantić, Jelena
AU  - Miljević, Miljana
AU  - Babić, Biljana
AU  - Radosavljević-Mihajlović, Ana
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11894
AB  - Based on mineralogical and technological investigations of the deposit 'Greda' important characteristics of bentonite clay were determined. Representative samples of the deposit were characterized with X-ray diffraction, low-temperature nitrogen adsorption, chemical analysis, differential thermal analysis and scanning electron microscopy. It was determined that the main mineral is montmorillonite and in subordinate quantities kaolinite, quartz and pyrite. The chemical composition generally shows high silica and alumina contents in all samples and small quantities of Fe3+, Ca2+ and Mg2+ cations. Based on technological and mineralogical research, bentonite from this deposit is a high-quality raw material for use in the ceramic industry.
T2  - Processing and Application of Ceramics
T1  - Characterization of bentonite clay from 'Greda' deposit
VL  - 5
IS  - 2
SP  - 97
EP  - 101
DO  - 10.2298/PAC1102097S
ER  - 
@article{
author = "Stanković, Nadežda and Logar, Mihovil and Luković, Jelena and Pantić, Jelena and Miljević, Miljana and Babić, Biljana and Radosavljević-Mihajlović, Ana",
year = "2011",
abstract = "Based on mineralogical and technological investigations of the deposit 'Greda' important characteristics of bentonite clay were determined. Representative samples of the deposit were characterized with X-ray diffraction, low-temperature nitrogen adsorption, chemical analysis, differential thermal analysis and scanning electron microscopy. It was determined that the main mineral is montmorillonite and in subordinate quantities kaolinite, quartz and pyrite. The chemical composition generally shows high silica and alumina contents in all samples and small quantities of Fe3+, Ca2+ and Mg2+ cations. Based on technological and mineralogical research, bentonite from this deposit is a high-quality raw material for use in the ceramic industry.",
journal = "Processing and Application of Ceramics",
title = "Characterization of bentonite clay from 'Greda' deposit",
volume = "5",
number = "2",
pages = "97-101",
doi = "10.2298/PAC1102097S"
}
Stanković, N., Logar, M., Luković, J., Pantić, J., Miljević, M., Babić, B.,& Radosavljević-Mihajlović, A.. (2011). Characterization of bentonite clay from 'Greda' deposit. in Processing and Application of Ceramics, 5(2), 97-101.
https://doi.org/10.2298/PAC1102097S
Stanković N, Logar M, Luković J, Pantić J, Miljević M, Babić B, Radosavljević-Mihajlović A. Characterization of bentonite clay from 'Greda' deposit. in Processing and Application of Ceramics. 2011;5(2):97-101.
doi:10.2298/PAC1102097S .
Stanković, Nadežda, Logar, Mihovil, Luković, Jelena, Pantić, Jelena, Miljević, Miljana, Babić, Biljana, Radosavljević-Mihajlović, Ana, "Characterization of bentonite clay from 'Greda' deposit" in Processing and Application of Ceramics, 5, no. 2 (2011):97-101,
https://doi.org/10.2298/PAC1102097S . .
29

Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP)

Rosić, Milena; Logar, Mihovil; Devečerski, Aleksandar; Prekajski, Marija D.; Radosavljević-Mihajlović, Ana S.; Kusigerski, Vladan; Spasojević, Vojislav; Matović, Branko

(2011)

TY  - JOUR
AU  - Rosić, Milena
AU  - Logar, Mihovil
AU  - Devečerski, Aleksandar
AU  - Prekajski, Marija D.
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Matović, Branko
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4271
AB  - Ca0.9Gd0.1MnO3 nanopowders with perovskite type crystal structure were synthesized by modified glycine nitrate procedure. Nanopowders were prepared by combining glycine with metal nitrates and/or metal acetates in their appropriate stoichiometric ratios. Modification of the procedure was performed by partial replacement of nitrates by acetates, in order to control the burn-up reaction. Obtained Ca0.9Gd0.1MnO3 powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. Properties such as phase evolution, lattice parameters, chemical composition and magnetic properties were monitored by DTA, X-ray diffraction, SEM/EDS and magnetic measurements. Magnetic measurements performed at the sample with the smallest crystallite size showed that a 10% of Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by the introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. Presence of competing interactions and their randomness lead to a formation of a spin glass state below Neel temperature T-N = 110 K. From the high temperature magnetic susceptibility measurements effective magnetic moment of manganese ions is determined which lies between the values for Mn3+ and Mn4+ ions. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP)
VL  - 37
IS  - 4
SP  - 1313
EP  - 1319
DO  - 10.1016/j.ceramint.2010.12.015
ER  - 
@article{
author = "Rosić, Milena and Logar, Mihovil and Devečerski, Aleksandar and Prekajski, Marija D. and Radosavljević-Mihajlović, Ana S. and Kusigerski, Vladan and Spasojević, Vojislav and Matović, Branko",
year = "2011",
abstract = "Ca0.9Gd0.1MnO3 nanopowders with perovskite type crystal structure were synthesized by modified glycine nitrate procedure. Nanopowders were prepared by combining glycine with metal nitrates and/or metal acetates in their appropriate stoichiometric ratios. Modification of the procedure was performed by partial replacement of nitrates by acetates, in order to control the burn-up reaction. Obtained Ca0.9Gd0.1MnO3 powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. Properties such as phase evolution, lattice parameters, chemical composition and magnetic properties were monitored by DTA, X-ray diffraction, SEM/EDS and magnetic measurements. Magnetic measurements performed at the sample with the smallest crystallite size showed that a 10% of Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by the introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. Presence of competing interactions and their randomness lead to a formation of a spin glass state below Neel temperature T-N = 110 K. From the high temperature magnetic susceptibility measurements effective magnetic moment of manganese ions is determined which lies between the values for Mn3+ and Mn4+ ions. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP)",
volume = "37",
number = "4",
pages = "1313-1319",
doi = "10.1016/j.ceramint.2010.12.015"
}
Rosić, M., Logar, M., Devečerski, A., Prekajski, M. D., Radosavljević-Mihajlović, A. S., Kusigerski, V., Spasojević, V.,& Matović, B.. (2011). Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP). in Ceramics International, 37(4), 1313-1319.
https://doi.org/10.1016/j.ceramint.2010.12.015
Rosić M, Logar M, Devečerski A, Prekajski MD, Radosavljević-Mihajlović AS, Kusigerski V, Spasojević V, Matović B. Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP). in Ceramics International. 2011;37(4):1313-1319.
doi:10.1016/j.ceramint.2010.12.015 .
Rosić, Milena, Logar, Mihovil, Devečerski, Aleksandar, Prekajski, Marija D., Radosavljević-Mihajlović, Ana S., Kusigerski, Vladan, Spasojević, Vojislav, Matović, Branko, "Synthesis, structural and magnetic properties of nanostructured Ca0.9Gd0.1MnO3 obtained by modified glycine nitrate procedure (MGNP)" in Ceramics International, 37, no. 4 (2011):1313-1319,
https://doi.org/10.1016/j.ceramint.2010.12.015 . .
7
7
7

Synthesis and surface characterization of ordered mesoporous silica SBA-15

Kokunešoski, Maja; Gulicovski, Jelena J.; Matović, Branko; Logar, Mihovil; Milonjić, Slobodan K.; Babić, Biljana M.

(2010)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Gulicovski, Jelena J.
AU  - Matović, Branko
AU  - Logar, Mihovil
AU  - Milonjić, Slobodan K.
AU  - Babić, Biljana M.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4152
AB  - Ordered mesoporous silica SBA-15 materials were synthesized using Plutonic P123 (non-ionic triblock copolymer EO(20)PO(70)O(20)) as a template under acidic conditions and different heating temperatures and time of the reaction solution These materials were characterized by nitrogen adsorption-desorption measurements Fourier-transformed infrared spectroscopy (FT-IR) and determination of points of zero charge and izoelectric points as well as particle diameters Synthesis at lower temperature (80 C) and longer time of reaction (48 h) gives samples with higher specific surface area (S(BET) = 710 m(2) g(-1)) mesoporose surface (S(meso) = 481 m(2) g(-1)) and narrower pore size distribution Material synthesized at higher temperature (100 degrees C) and shorter time of reaction (24 h) has lower specific surface and mesoporosity (S(BET) = 641 m(2) g(-1) and S(meso) = 367 m(2) g(-1)) At both samples the presence of micropores was confirmed The point of zero charge pH(PZC) = 5 2 +/- 0 2 and the isoelectric point pH(IEB) = 2 3 +/- 0 1 were not affected by synthesis conditions Washing of silica samples in a dilute solution of nitric acid shifts the isoelectric point to a higher value (pH(IEP) = 3 0 +/- 0 2) while the point of zero charge remains constant (C) 2010 Elsevier B V All rights reserved
T2  - Materials Chemistry and Physics
T1  - Synthesis and surface characterization of ordered mesoporous silica SBA-15
VL  - 124
IS  - 2-3
SP  - 1248
EP  - 1252
DO  - 10.1016/j.matchemphys.2010.08.066
ER  - 
@article{
author = "Kokunešoski, Maja and Gulicovski, Jelena J. and Matović, Branko and Logar, Mihovil and Milonjić, Slobodan K. and Babić, Biljana M.",
year = "2010",
abstract = "Ordered mesoporous silica SBA-15 materials were synthesized using Plutonic P123 (non-ionic triblock copolymer EO(20)PO(70)O(20)) as a template under acidic conditions and different heating temperatures and time of the reaction solution These materials were characterized by nitrogen adsorption-desorption measurements Fourier-transformed infrared spectroscopy (FT-IR) and determination of points of zero charge and izoelectric points as well as particle diameters Synthesis at lower temperature (80 C) and longer time of reaction (48 h) gives samples with higher specific surface area (S(BET) = 710 m(2) g(-1)) mesoporose surface (S(meso) = 481 m(2) g(-1)) and narrower pore size distribution Material synthesized at higher temperature (100 degrees C) and shorter time of reaction (24 h) has lower specific surface and mesoporosity (S(BET) = 641 m(2) g(-1) and S(meso) = 367 m(2) g(-1)) At both samples the presence of micropores was confirmed The point of zero charge pH(PZC) = 5 2 +/- 0 2 and the isoelectric point pH(IEB) = 2 3 +/- 0 1 were not affected by synthesis conditions Washing of silica samples in a dilute solution of nitric acid shifts the isoelectric point to a higher value (pH(IEP) = 3 0 +/- 0 2) while the point of zero charge remains constant (C) 2010 Elsevier B V All rights reserved",
journal = "Materials Chemistry and Physics",
title = "Synthesis and surface characterization of ordered mesoporous silica SBA-15",
volume = "124",
number = "2-3",
pages = "1248-1252",
doi = "10.1016/j.matchemphys.2010.08.066"
}
Kokunešoski, M., Gulicovski, J. J., Matović, B., Logar, M., Milonjić, S. K.,& Babić, B. M.. (2010). Synthesis and surface characterization of ordered mesoporous silica SBA-15. in Materials Chemistry and Physics, 124(2-3), 1248-1252.
https://doi.org/10.1016/j.matchemphys.2010.08.066
Kokunešoski M, Gulicovski JJ, Matović B, Logar M, Milonjić SK, Babić BM. Synthesis and surface characterization of ordered mesoporous silica SBA-15. in Materials Chemistry and Physics. 2010;124(2-3):1248-1252.
doi:10.1016/j.matchemphys.2010.08.066 .
Kokunešoski, Maja, Gulicovski, Jelena J., Matović, Branko, Logar, Mihovil, Milonjić, Slobodan K., Babić, Biljana M., "Synthesis and surface characterization of ordered mesoporous silica SBA-15" in Materials Chemistry and Physics, 124, no. 2-3 (2010):1248-1252,
https://doi.org/10.1016/j.matchemphys.2010.08.066 . .
68
51
68

Cost-effective synthesis of Si3N4-SiC nanocomposite powder

Šaponjić, Aleksandra; Matović, Branko; Babić, Biljana M.; Zagorac, Jelena B.; Poharc-Logar, V.; Logar, Mihovil

(2010)

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Matović, Branko
AU  - Babić, Biljana M.
AU  - Zagorac, Jelena B.
AU  - Poharc-Logar, V.
AU  - Logar, Mihovil
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4174
AB  - A carbothermal reduction and nitridation process (CRN) was employed to prepare Si3N4-SiC nanocomposite powder [1-4]. Diatomaceous earth from Serbian deposite was used as Si precursor in the synthesis of nanocomposite powder by mixing with commercial sugar as reduscing agent. Purified diatomaceous earth with pre-determined C/SiO2 ratio of 5 yuilded Si3N4-SiC nanocomposite powder. The XRD (Rietveld analysis) was employed to evaluate Si3N4/SiC ratio of the obtained powder after CRN. Also IR and SEM analysis were used to determine morphology and chemical composistion. The results show that the optimally temperature was 1450 degrees C, which is wery low, compared to the classical synthesis process.
T2  - Optoelectronics and Advanced Materials - Rapid Communications
T1  - Cost-effective synthesis of Si3N4-SiC nanocomposite powder
VL  - 4
IS  - 11
SP  - 1681
EP  - 1684
UR  - https://hdl.handle.net/21.15107/rcub_vinar_4174
ER  - 
@article{
author = "Šaponjić, Aleksandra and Matović, Branko and Babić, Biljana M. and Zagorac, Jelena B. and Poharc-Logar, V. and Logar, Mihovil",
year = "2010",
abstract = "A carbothermal reduction and nitridation process (CRN) was employed to prepare Si3N4-SiC nanocomposite powder [1-4]. Diatomaceous earth from Serbian deposite was used as Si precursor in the synthesis of nanocomposite powder by mixing with commercial sugar as reduscing agent. Purified diatomaceous earth with pre-determined C/SiO2 ratio of 5 yuilded Si3N4-SiC nanocomposite powder. The XRD (Rietveld analysis) was employed to evaluate Si3N4/SiC ratio of the obtained powder after CRN. Also IR and SEM analysis were used to determine morphology and chemical composistion. The results show that the optimally temperature was 1450 degrees C, which is wery low, compared to the classical synthesis process.",
journal = "Optoelectronics and Advanced Materials - Rapid Communications",
title = "Cost-effective synthesis of Si3N4-SiC nanocomposite powder",
volume = "4",
number = "11",
pages = "1681-1684",
url = "https://hdl.handle.net/21.15107/rcub_vinar_4174"
}
Šaponjić, A., Matović, B., Babić, B. M., Zagorac, J. B., Poharc-Logar, V.,& Logar, M.. (2010). Cost-effective synthesis of Si3N4-SiC nanocomposite powder. in Optoelectronics and Advanced Materials - Rapid Communications, 4(11), 1681-1684.
https://hdl.handle.net/21.15107/rcub_vinar_4174
Šaponjić A, Matović B, Babić BM, Zagorac JB, Poharc-Logar V, Logar M. Cost-effective synthesis of Si3N4-SiC nanocomposite powder. in Optoelectronics and Advanced Materials - Rapid Communications. 2010;4(11):1681-1684.
https://hdl.handle.net/21.15107/rcub_vinar_4174 .
Šaponjić, Aleksandra, Matović, Branko, Babić, Biljana M., Zagorac, Jelena B., Poharc-Logar, V., Logar, Mihovil, "Cost-effective synthesis of Si3N4-SiC nanocomposite powder" in Optoelectronics and Advanced Materials - Rapid Communications, 4, no. 11 (2010):1681-1684,
https://hdl.handle.net/21.15107/rcub_vinar_4174 .
2

Synthesis and characterization of the nanometric Pr-doped ceria

Matović, Branko; Bošković, Snežana B.; Logar, Mihovil; Radović, Marko B.; Dohcevic-Mitrovic, Z.; Popović, Zoran V.; Aldinger, Fritz

(2010)

TY  - JOUR
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Logar, Mihovil
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4089
AB  - In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Synthesis and characterization of the nanometric Pr-doped ceria
VL  - 505
IS  - 1
SP  - 235
EP  - 238
DO  - 10.1016/j.jallcom.2010.06.036
ER  - 
@article{
author = "Matović, Branko and Bošković, Snežana B. and Logar, Mihovil and Radović, Marko B. and Dohcevic-Mitrovic, Z. and Popović, Zoran V. and Aldinger, Fritz",
year = "2010",
abstract = "In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Synthesis and characterization of the nanometric Pr-doped ceria",
volume = "505",
number = "1",
pages = "235-238",
doi = "10.1016/j.jallcom.2010.06.036"
}
Matović, B., Bošković, S. B., Logar, M., Radović, M. B., Dohcevic-Mitrovic, Z., Popović, Z. V.,& Aldinger, F.. (2010). Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds, 505(1), 235-238.
https://doi.org/10.1016/j.jallcom.2010.06.036
Matović B, Bošković SB, Logar M, Radović MB, Dohcevic-Mitrovic Z, Popović ZV, Aldinger F. Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds. 2010;505(1):235-238.
doi:10.1016/j.jallcom.2010.06.036 .
Matović, Branko, Bošković, Snežana B., Logar, Mihovil, Radović, Marko B., Dohcevic-Mitrovic, Z., Popović, Zoran V., Aldinger, Fritz, "Synthesis and characterization of the nanometric Pr-doped ceria" in Journal of Alloys and Compounds, 505, no. 1 (2010):235-238,
https://doi.org/10.1016/j.jallcom.2010.06.036 . .
11
12
12

Glass-Ceramics Obtained by the Crystallization of Basalt

Cocic, M.; Logar, Mihovil; Matović, Branko; Poharc-Logar, V.

(2010)

TY  - JOUR
AU  - Cocic, M.
AU  - Logar, Mihovil
AU  - Matović, Branko
AU  - Poharc-Logar, V.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4284
AB  - The possibility to obtain glass-ceramics from basalt from the locality on Vrelo (Kopaonik mt.) is shown in this paper. The parent rock was ground to fraction -0.4 +0.1 mm, and then melted at 1250 - 1300 degrees C. The crystallization melted bazaltic glass at 950 degrees C during the time interval of 3 hours caused synthesis of a glass-ceramic material with a microstructure that has excellent mechanical properties according to the determined dynamic modulus of elasticity and uniaxial compresive strength. The phase composition of. the obtained glass ceramic material was determined by XRPD using Rietveld refinement and SEM. Two phases were found: pyroxene which corresponds to omphacite of the composition (Na(0.199) K(0.180) Ca(0.471) Mg(0.249))(1.1)(Mg(0.271)Fe(0.299)Al(0.430))(1.0)(Si(1.704)Ti(0.046)Al(0.250))(2.0)O(6) and glass with on approximate relationship 69:31.
T2  - Science of Sintering
T1  - Glass-Ceramics Obtained by the Crystallization of Basalt
VL  - 42
IS  - 3
SP  - 383
EP  - 388
DO  - 10.2298/SOS1003383C
ER  - 
@article{
author = "Cocic, M. and Logar, Mihovil and Matović, Branko and Poharc-Logar, V.",
year = "2010",
abstract = "The possibility to obtain glass-ceramics from basalt from the locality on Vrelo (Kopaonik mt.) is shown in this paper. The parent rock was ground to fraction -0.4 +0.1 mm, and then melted at 1250 - 1300 degrees C. The crystallization melted bazaltic glass at 950 degrees C during the time interval of 3 hours caused synthesis of a glass-ceramic material with a microstructure that has excellent mechanical properties according to the determined dynamic modulus of elasticity and uniaxial compresive strength. The phase composition of. the obtained glass ceramic material was determined by XRPD using Rietveld refinement and SEM. Two phases were found: pyroxene which corresponds to omphacite of the composition (Na(0.199) K(0.180) Ca(0.471) Mg(0.249))(1.1)(Mg(0.271)Fe(0.299)Al(0.430))(1.0)(Si(1.704)Ti(0.046)Al(0.250))(2.0)O(6) and glass with on approximate relationship 69:31.",
journal = "Science of Sintering",
title = "Glass-Ceramics Obtained by the Crystallization of Basalt",
volume = "42",
number = "3",
pages = "383-388",
doi = "10.2298/SOS1003383C"
}
Cocic, M., Logar, M., Matović, B.,& Poharc-Logar, V.. (2010). Glass-Ceramics Obtained by the Crystallization of Basalt. in Science of Sintering, 42(3), 383-388.
https://doi.org/10.2298/SOS1003383C
Cocic M, Logar M, Matović B, Poharc-Logar V. Glass-Ceramics Obtained by the Crystallization of Basalt. in Science of Sintering. 2010;42(3):383-388.
doi:10.2298/SOS1003383C .
Cocic, M., Logar, Mihovil, Matović, Branko, Poharc-Logar, V., "Glass-Ceramics Obtained by the Crystallization of Basalt" in Science of Sintering, 42, no. 3 (2010):383-388,
https://doi.org/10.2298/SOS1003383C . .
17
14
18

Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis

Cocić, Mira B.; Logar, Mihovil M.; Cocić, Saša; Živković, Dragana T.; Matović, Branko; Dević, Snežana S.

(2009)

TY  - JOUR
AU  - Cocić, Mira B.
AU  - Logar, Mihovil M.
AU  - Cocić, Saša
AU  - Živković, Dragana T.
AU  - Matović, Branko
AU  - Dević, Snežana S.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3814
AB  - Roasting process of sulphide copper concentrates in fluo-solid reactor is an oxidation process, and presents the first stage of copper concentrate processing in Copper Mining and Smelting Complex Bor, RTB Bor. Therefore, the importance of accurate and up to date process control is an apparent precondition for the correct treatment in the following stages and also for of high grade cathode copper. As concentrate is fed into the roaster, it is heated by a stream of hot air to about 590 degrees C. The process takes place between solid and gaseous phases without the appearance of a liquid phase. The heat generated by the exothermic oxidation reaction of sulphur from cooper and iron minerals (chalcopyrite and pyrite) is sufficient to carry out the entire process autogenously at temperature from 620 to 670 degrees C. The temperature of sulphur firing which defines the start of roasting depends on physical traits, particle size of sulfides and characteristic product of oxidation. The obtained products of the roasting process are: calcine, ready for smelting in the furnace and gas-rich sulphure dioxide (SO(2)) well suited for the production of sulfuric acid. The relationship between the quantitative mineral composition of the charge and of the calcine directly points out to the efficiency of the roasting process in fluo-solid reactor. The amount of bornite and magnetite, resulting from the sulfide oxidation is the most important parameter. Hence, quantitative determination of mineral composition is of great interest. In this work, the results of the determination of quantitative mineral composition of the copper sulphide concentrate (charge) and products of their roasting (calcine and overflow) in fluo-solid reactor in the RTB; Bor are presented. The aim was to compare the results of the iron, copper, sulfur and oxygen contents determined by two independent techniques, the chemical (HA) and X-ray powder diffraction analysis (XRPD) that is based on the quantitative mineral composition. Differences in the obtained results are evident, but small enough to confirm the reliability of measurement.
T2  - Hemijska industrija
T1  - Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis
VL  - 63
IS  - 4
SP  - 319
EP  - 324
DO  - 10.2298/HEMIND0904319C
ER  - 
@article{
author = "Cocić, Mira B. and Logar, Mihovil M. and Cocić, Saša and Živković, Dragana T. and Matović, Branko and Dević, Snežana S.",
year = "2009",
abstract = "Roasting process of sulphide copper concentrates in fluo-solid reactor is an oxidation process, and presents the first stage of copper concentrate processing in Copper Mining and Smelting Complex Bor, RTB Bor. Therefore, the importance of accurate and up to date process control is an apparent precondition for the correct treatment in the following stages and also for of high grade cathode copper. As concentrate is fed into the roaster, it is heated by a stream of hot air to about 590 degrees C. The process takes place between solid and gaseous phases without the appearance of a liquid phase. The heat generated by the exothermic oxidation reaction of sulphur from cooper and iron minerals (chalcopyrite and pyrite) is sufficient to carry out the entire process autogenously at temperature from 620 to 670 degrees C. The temperature of sulphur firing which defines the start of roasting depends on physical traits, particle size of sulfides and characteristic product of oxidation. The obtained products of the roasting process are: calcine, ready for smelting in the furnace and gas-rich sulphure dioxide (SO(2)) well suited for the production of sulfuric acid. The relationship between the quantitative mineral composition of the charge and of the calcine directly points out to the efficiency of the roasting process in fluo-solid reactor. The amount of bornite and magnetite, resulting from the sulfide oxidation is the most important parameter. Hence, quantitative determination of mineral composition is of great interest. In this work, the results of the determination of quantitative mineral composition of the copper sulphide concentrate (charge) and products of their roasting (calcine and overflow) in fluo-solid reactor in the RTB; Bor are presented. The aim was to compare the results of the iron, copper, sulfur and oxygen contents determined by two independent techniques, the chemical (HA) and X-ray powder diffraction analysis (XRPD) that is based on the quantitative mineral composition. Differences in the obtained results are evident, but small enough to confirm the reliability of measurement.",
journal = "Hemijska industrija",
title = "Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis",
volume = "63",
number = "4",
pages = "319-324",
doi = "10.2298/HEMIND0904319C"
}
Cocić, M. B., Logar, M. M., Cocić, S., Živković, D. T., Matović, B.,& Dević, S. S.. (2009). Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis. in Hemijska industrija, 63(4), 319-324.
https://doi.org/10.2298/HEMIND0904319C
Cocić MB, Logar MM, Cocić S, Živković DT, Matović B, Dević SS. Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis. in Hemijska industrija. 2009;63(4):319-324.
doi:10.2298/HEMIND0904319C .
Cocić, Mira B., Logar, Mihovil M., Cocić, Saša, Živković, Dragana T., Matović, Branko, Dević, Snežana S., "Determination of Sulphide Concentrates of Ore Copper By Xrpd and Chemical Analysis" in Hemijska industrija, 63, no. 4 (2009):319-324,
https://doi.org/10.2298/HEMIND0904319C . .

Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos

Devečerski, Aleksandar; Pošarac, Milica B.; Egelja, Adela; Radosavljević-Mihajlović, Ana S.; Bošković, Snežana B.; Logar, Mihovil; Matović, Branko

(2008)

TY  - JOUR
AU  - Devečerski, Aleksandar
AU  - Pošarac, Milica B.
AU  - Egelja, Adela
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Bošković, Snežana B.
AU  - Logar, Mihovil
AU  - Matović, Branko
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3535
AB  - Fibrous magnesium silicate (Mg6Si4O10(OH)s: Mountain leather asbestos) of Serbian origin was used as Si precursor for the Synthesis of SiC by carbothermal-reduction process. As a reducing agent, carbon (from various precursors) was used. Formation of beta-SiC was confirmed by XRD and SEM/EDS analyses. Porous SiC particles obtained at 1873 K possess longish plate-like morphology. The results show that reduction reaction is assisted by liquid phase formation, as well as vapor phase transport, and that mountain leather asbestos can be very effective mineral precursor for preparation of silicon carbide. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos
VL  - 464
IS  - 1-2
SP  - 270
EP  - 276
DO  - 10.1016/j.jallcom.2007.09.090
ER  - 
@article{
author = "Devečerski, Aleksandar and Pošarac, Milica B. and Egelja, Adela and Radosavljević-Mihajlović, Ana S. and Bošković, Snežana B. and Logar, Mihovil and Matović, Branko",
year = "2008",
abstract = "Fibrous magnesium silicate (Mg6Si4O10(OH)s: Mountain leather asbestos) of Serbian origin was used as Si precursor for the Synthesis of SiC by carbothermal-reduction process. As a reducing agent, carbon (from various precursors) was used. Formation of beta-SiC was confirmed by XRD and SEM/EDS analyses. Porous SiC particles obtained at 1873 K possess longish plate-like morphology. The results show that reduction reaction is assisted by liquid phase formation, as well as vapor phase transport, and that mountain leather asbestos can be very effective mineral precursor for preparation of silicon carbide. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos",
volume = "464",
number = "1-2",
pages = "270-276",
doi = "10.1016/j.jallcom.2007.09.090"
}
Devečerski, A., Pošarac, M. B., Egelja, A., Radosavljević-Mihajlović, A. S., Bošković, S. B., Logar, M.,& Matović, B.. (2008). Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos. in Journal of Alloys and Compounds, 464(1-2), 270-276.
https://doi.org/10.1016/j.jallcom.2007.09.090
Devečerski A, Pošarac MB, Egelja A, Radosavljević-Mihajlović AS, Bošković SB, Logar M, Matović B. Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos. in Journal of Alloys and Compounds. 2008;464(1-2):270-276.
doi:10.1016/j.jallcom.2007.09.090 .
Devečerski, Aleksandar, Pošarac, Milica B., Egelja, Adela, Radosavljević-Mihajlović, Ana S., Bošković, Snežana B., Logar, Mihovil, Matović, Branko, "Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos" in Journal of Alloys and Compounds, 464, no. 1-2 (2008):270-276,
https://doi.org/10.1016/j.jallcom.2007.09.090 . .
11
14
14

Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor

Cocic, M.; Logar, Mihovil; Cocic, S.; Devic, S.; Matović, Branko; Manasijević, Dragan

(2007)

TY  - JOUR
AU  - Cocic, M.
AU  - Logar, Mihovil
AU  - Cocic, S.
AU  - Devic, S.
AU  - Matović, Branko
AU  - Manasijević, Dragan
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2721
AB  - This work presents the results of investigation process of copper concentrate roasting in fluo-solid reactor with the aim of studying a transformation degree of primary ore minerals under various technological parameters. Input material (charge) and roasting products (calcine) were investigated by x-ray diffraction, ore microscopy and chemical analysis. The investigation results have shown that reaction of mineral transformation are not completed, i.e. they are developed only partially (12 - 22%) what is a consequence of insufficient long heating, unsuitable temperature or unfilled other parameters as well as non-uniform grain size.
T2  - Journal of mining and metallurgy, Section B: Metallurgy
T1  - Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor
VL  - 43
IS  - 1
SP  - 71
EP  - 84
DO  - 10.2298/JMMB0701071C
ER  - 
@article{
author = "Cocic, M. and Logar, Mihovil and Cocic, S. and Devic, S. and Matović, Branko and Manasijević, Dragan",
year = "2007",
abstract = "This work presents the results of investigation process of copper concentrate roasting in fluo-solid reactor with the aim of studying a transformation degree of primary ore minerals under various technological parameters. Input material (charge) and roasting products (calcine) were investigated by x-ray diffraction, ore microscopy and chemical analysis. The investigation results have shown that reaction of mineral transformation are not completed, i.e. they are developed only partially (12 - 22%) what is a consequence of insufficient long heating, unsuitable temperature or unfilled other parameters as well as non-uniform grain size.",
journal = "Journal of mining and metallurgy, Section B: Metallurgy",
title = "Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor",
volume = "43",
number = "1",
pages = "71-84",
doi = "10.2298/JMMB0701071C"
}
Cocic, M., Logar, M., Cocic, S., Devic, S., Matović, B.,& Manasijević, D.. (2007). Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor. in Journal of mining and metallurgy, Section B: Metallurgy, 43(1), 71-84.
https://doi.org/10.2298/JMMB0701071C
Cocic M, Logar M, Cocic S, Devic S, Matović B, Manasijević D. Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor. in Journal of mining and metallurgy, Section B: Metallurgy. 2007;43(1):71-84.
doi:10.2298/JMMB0701071C .
Cocic, M., Logar, Mihovil, Cocic, S., Devic, S., Matović, Branko, Manasijević, Dragan, "Mineralogical Transformations in Copper Concentrate Roasting in Fluo-Solid Reactor" in Journal of mining and metallurgy, Section B: Metallurgy, 43, no. 1 (2007):71-84,
https://doi.org/10.2298/JMMB0701071C . .
6
6
6

Synthesis of fibrous SiC from natural precursor

Devečerski, Aleksandar; Logar, Mihovil; Pošarac-Marković, Milica B.; Brdarić, Tanja; Božić, Dušan; Matović, Branko

(Society of Physical Chemists of Serbia, 2006)

TY  - CONF
AU  - Devečerski, Aleksandar
AU  - Logar, Mihovil
AU  - Pošarac-Marković, Milica B.
AU  - Brdarić, Tanja
AU  - Božić, Dušan
AU  - Matović, Branko
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9454
AB  - Fibrous magnesio-silicate (mountain leather asbestos) of Serbian origin was used as Si precursor for the synthesis of SiC by carbothermal-reduction process [1, 2]. As a reducing agent, sugar (saccharose) was used. Formation of SiC was confirmed by XRD analysis and optical microscopy images. Results showed that obtained SiC possess fibrous morphology. Due to the experimental procedure MgF2 is also formed, which is known as an excellent additive for sintering of non-oxide ceramics.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
T1  - Synthesis of fibrous SiC from natural precursor
SP  - 525
EP  - 527
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9454
ER  - 
@conference{
author = "Devečerski, Aleksandar and Logar, Mihovil and Pošarac-Marković, Milica B. and Brdarić, Tanja and Božić, Dušan and Matović, Branko",
year = "2006",
abstract = "Fibrous magnesio-silicate (mountain leather asbestos) of Serbian origin was used as Si precursor for the synthesis of SiC by carbothermal-reduction process [1, 2]. As a reducing agent, sugar (saccharose) was used. Formation of SiC was confirmed by XRD analysis and optical microscopy images. Results showed that obtained SiC possess fibrous morphology. Due to the experimental procedure MgF2 is also formed, which is known as an excellent additive for sintering of non-oxide ceramics.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry",
title = "Synthesis of fibrous SiC from natural precursor",
pages = "525-527",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9454"
}
Devečerski, A., Logar, M., Pošarac-Marković, M. B., Brdarić, T., Božić, D.,& Matović, B.. (2006). Synthesis of fibrous SiC from natural precursor. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 525-527.
https://hdl.handle.net/21.15107/rcub_vinar_9454
Devečerski A, Logar M, Pošarac-Marković MB, Brdarić T, Božić D, Matović B. Synthesis of fibrous SiC from natural precursor. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry. 2006;:525-527.
https://hdl.handle.net/21.15107/rcub_vinar_9454 .
Devečerski, Aleksandar, Logar, Mihovil, Pošarac-Marković, Milica B., Brdarić, Tanja, Božić, Dušan, Matović, Branko, "Synthesis of fibrous SiC from natural precursor" in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry (2006):525-527,
https://hdl.handle.net/21.15107/rcub_vinar_9454 .

Preparation of basalt-based glass ceramics

Matović, Branko; Bošković, Snežana B.; Logar, Mihovil

(2003)

TY  - JOUR
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Logar, Mihovil
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2642
AB  - Local and conventional raw materials-massive basalt from the Vrelo locality on Kopaonik mountain-have been used as starting materials to test their suitability for the production of glass-ceramics. Crystallization phenomena of glasses of the fused basalt rocks were studied by X-ray phase analysis. optical microscopy and other techniques. Various heat treatments were used, and their influences. on controlling the microstructures and properties of the products were studied with the aim of developing high strength glass-ceramic materials. Diopside CaMg(SiO3)(2) and hypersthene ((Mg,Fe)SiO3) were identifies as the crystalline phases. The final products contained considerable amounts of a glassy phase. The crystalline size was in range of 8-480 mum with plate or needle shape. Microhardness, crashing strength and wears resistence of the glass-ceramics ranged from 6.5-7.5, from 2000-6300 kg/cm(2) and from 0.1-0.2 g/cm, respectively.
T2  - Journal of the Serbian Chemical Society
T1  - Preparation of basalt-based glass ceramics
VL  - 68
IS  - 6
SP  - 505
EP  - 510
DO  - 10.2298/JSC0306505M
ER  - 
@article{
author = "Matović, Branko and Bošković, Snežana B. and Logar, Mihovil",
year = "2003",
abstract = "Local and conventional raw materials-massive basalt from the Vrelo locality on Kopaonik mountain-have been used as starting materials to test their suitability for the production of glass-ceramics. Crystallization phenomena of glasses of the fused basalt rocks were studied by X-ray phase analysis. optical microscopy and other techniques. Various heat treatments were used, and their influences. on controlling the microstructures and properties of the products were studied with the aim of developing high strength glass-ceramic materials. Diopside CaMg(SiO3)(2) and hypersthene ((Mg,Fe)SiO3) were identifies as the crystalline phases. The final products contained considerable amounts of a glassy phase. The crystalline size was in range of 8-480 mum with plate or needle shape. Microhardness, crashing strength and wears resistence of the glass-ceramics ranged from 6.5-7.5, from 2000-6300 kg/cm(2) and from 0.1-0.2 g/cm, respectively.",
journal = "Journal of the Serbian Chemical Society",
title = "Preparation of basalt-based glass ceramics",
volume = "68",
number = "6",
pages = "505-510",
doi = "10.2298/JSC0306505M"
}
Matović, B., Bošković, S. B.,& Logar, M.. (2003). Preparation of basalt-based glass ceramics. in Journal of the Serbian Chemical Society, 68(6), 505-510.
https://doi.org/10.2298/JSC0306505M
Matović B, Bošković SB, Logar M. Preparation of basalt-based glass ceramics. in Journal of the Serbian Chemical Society. 2003;68(6):505-510.
doi:10.2298/JSC0306505M .
Matović, Branko, Bošković, Snežana B., Logar, Mihovil, "Preparation of basalt-based glass ceramics" in Journal of the Serbian Chemical Society, 68, no. 6 (2003):505-510,
https://doi.org/10.2298/JSC0306505M . .
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