Filipovic, S.

Link to this page

Authority KeyName Variants
orcid::0000-0001-6383-8327
  • Filipovic, S. (11)
  • Filipovic, Suzana (2)
Projects

Author's Bibliography

Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities

Obradovic, Nina; Filipovic, Suzana; Markovic, Smilja; Mitrić, Miodrag; Rusmirović, Jelena D.; Marinković, Aleksandar D.; Antic, Vesna; Pavlović, Vladimir B.

(2017)

TY  - JOUR
AU  - Obradovic, Nina
AU  - Filipovic, Suzana
AU  - Markovic, Smilja
AU  - Mitrić, Miodrag
AU  - Rusmirović, Jelena D.
AU  - Marinković, Aleksandar D.
AU  - Antic, Vesna
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1558
AB  - In this study, porous macro- and micro-cellular wollastonite-based ceramics was synthesized. A ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as a starting material. After 20 min of ultrasound treatment, and calcination at 250 degrees C for 30 min, different pore-forming agents were added to the as-obtained powders. Differential thermal analysis was used to determine characteristic temperatures of processes occurring within powders during heating. Based on the obtained results, the sintering regime was set up. The prepared mixtures were pressed into pallets and sintered at 900 degrees C. During the sintering regime, porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples, as well as the microstructures, were analyzed by using X-ray diffraction and SEM. A two-phase system was detected in all samples, CaSiO3 wollastonite and Ca2SiO4 larnite, and their ratio varied with each pore-forming agent. It was observed that the addition of different pore-forming agents resulted in significantly different microstructures. In a batch test, the influence of pH, the contact time and the initial ion concentration on the adsorption efficiency of As+5, Cr(+6)and phosphate ions on the synthesized adsorbents were studied. Time-dependent adsorption is best described by the pseudo-second-order kinetic model and the Weber-Morris model, which predict intra-particle diffusion as a rate-controlling step of the overall process. High adsorption capacities, 21.93, 23.88, and 27.29 mg g(-1), were obtained for the CaCO3-siloxane-nanocellulose sorbent, and similar/lower capacities were obtained for the CaCO3-siloxane-PMMA and CaCO3-siloxane-cotton wool adsorbents.
T2  - Ceramics International
T1  - Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities
VL  - 43
IS  - 10
SP  - 7461
EP  - 7468
DO  - 10.1016/j.ceramint.2017.03.021
ER  - 
@article{
author = "Obradovic, Nina and Filipovic, Suzana and Markovic, Smilja and Mitrić, Miodrag and Rusmirović, Jelena D. and Marinković, Aleksandar D. and Antic, Vesna and Pavlović, Vladimir B.",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1558",
abstract = "In this study, porous macro- and micro-cellular wollastonite-based ceramics was synthesized. A ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as a starting material. After 20 min of ultrasound treatment, and calcination at 250 degrees C for 30 min, different pore-forming agents were added to the as-obtained powders. Differential thermal analysis was used to determine characteristic temperatures of processes occurring within powders during heating. Based on the obtained results, the sintering regime was set up. The prepared mixtures were pressed into pallets and sintered at 900 degrees C. During the sintering regime, porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples, as well as the microstructures, were analyzed by using X-ray diffraction and SEM. A two-phase system was detected in all samples, CaSiO3 wollastonite and Ca2SiO4 larnite, and their ratio varied with each pore-forming agent. It was observed that the addition of different pore-forming agents resulted in significantly different microstructures. In a batch test, the influence of pH, the contact time and the initial ion concentration on the adsorption efficiency of As+5, Cr(+6)and phosphate ions on the synthesized adsorbents were studied. Time-dependent adsorption is best described by the pseudo-second-order kinetic model and the Weber-Morris model, which predict intra-particle diffusion as a rate-controlling step of the overall process. High adsorption capacities, 21.93, 23.88, and 27.29 mg g(-1), were obtained for the CaCO3-siloxane-nanocellulose sorbent, and similar/lower capacities were obtained for the CaCO3-siloxane-PMMA and CaCO3-siloxane-cotton wool adsorbents.",
journal = "Ceramics International",
title = "Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities",
volume = "43",
number = "10",
pages = "7461-7468",
doi = "10.1016/j.ceramint.2017.03.021"
}
Obradovic, N., Filipovic, S., Markovic, S., Mitrić, M., Rusmirović, J. D., Marinković, A. D., Antic, V.,& Pavlović, V. B. (2017). Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities.
Ceramics International, 43(10), 7461-7468.
https://doi.org/10.1016/j.ceramint.2017.03.021
Obradovic N, Filipovic S, Markovic S, Mitrić M, Rusmirović JD, Marinković AD, Antic V, Pavlović VB. Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities. Ceramics International. 2017;43(10):7461-7468
Obradovic Nina, Filipovic Suzana, Markovic Smilja, Mitrić Miodrag, Rusmirović Jelena D., Marinković Aleksandar D., Antic Vesna, Pavlović Vladimir B., "Influence of different pore-forming agents on wollastonite microstructures and adsorption capacities" Ceramics International, 43, no. 10 (2017):7461-7468,
https://doi.org/10.1016/j.ceramint.2017.03.021 .
13
13
17

Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA

Obradovic, Nina; Dordevic, Natasa; Filipovic, Suzana; Markovic, Smilja; Kosanovic, Darko; Mitrić, Miodrag; Pavlović, Vladimir B.

(2016)

TY  - JOUR
AU  - Obradovic, Nina
AU  - Dordevic, Natasa
AU  - Filipovic, Suzana
AU  - Markovic, Smilja
AU  - Kosanovic, Darko
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/999
AB  - Since cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2) (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 A degrees C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissingers equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 A degrees C, comparing to the literature data.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA
VL  - 124
IS  - 2
SP  - 667
EP  - 673
DO  - 10.1007/s10973-015-5132-9
ER  - 
@article{
author = "Obradovic, Nina and Dordevic, Natasa and Filipovic, Suzana and Markovic, Smilja and Kosanovic, Darko and Mitrić, Miodrag and Pavlović, Vladimir B.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/999",
abstract = "Since cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2) (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 A degrees C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissingers equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 A degrees C, comparing to the literature data.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA",
volume = "124",
number = "2",
pages = "667-673",
doi = "10.1007/s10973-015-5132-9"
}
Obradovic, N., Dordevic, N., Filipovic, S., Markovic, S., Kosanovic, D., Mitrić, M.,& Pavlović, V. B. (2016). Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA.
Journal of Thermal Analysis and Calorimetry, 124(2), 667-673.
https://doi.org/10.1007/s10973-015-5132-9
Obradovic N, Dordevic N, Filipovic S, Markovic S, Kosanovic D, Mitrić M, Pavlović VB. Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA. Journal of Thermal Analysis and Calorimetry. 2016;124(2):667-673
Obradovic Nina, Dordevic Natasa, Filipovic Suzana, Markovic Smilja, Kosanovic Darko, Mitrić Miodrag, Pavlović Vladimir B., "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA" Journal of Thermal Analysis and Calorimetry, 124, no. 2 (2016):667-673,
https://doi.org/10.1007/s10973-015-5132-9 .
6
7
7

Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics

Filipovic, S.; Obradovic, N.; Pavlović, Vladimir B.; Mitrić, Miodrag; Dordevic, A.; Kachlik, M.; Maca, K.

(2016)

TY  - JOUR
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Pavlović, Vladimir B.
AU  - Mitrić, Miodrag
AU  - Dordevic, A.
AU  - Kachlik, M.
AU  - Maca, K.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1037
AB  - The aim of this study is to explore the influence of the processing route on the structural and physical properties of bulk MgTiO3 ceramics. Commercially available MgO and TiO2 powders were mechanically activated in a planetary ball mill. Green bodies were formed by an isostatic pressure of 300 MPa. The sintering of these samples was done either by the Two-Step Sintering (TSS) approach or by conventional pressureless sintering followed by Hot Isostatic Pressing (post-HIPing). The first set of compacts was sintered by TSS in air at 1300 degrees C for 30 min and the next step was performed at 1200 degrees C for 20 h. The density of the obtained samples after the two-step sintering reached almost 90% of the theoretical density (%TD). The second set of compacts was sintered at 1400 degrees C for 30 min in air. The samples without open porosity were post-sintered by the HIP at 1200 degrees C for 2 h in an argon atmosphere at a pressure of 200 MPa. The density significantly increased up to 96%TD. The differences between samples prepared by these two techniques were also analyzed by XRD and SEM. The lattice vibration spectra were obtained using Raman spectroscopy and they indicate a high degree of lattice disorder, as well as high values of the oxygen vacancy concentration. Electrical characteristic were established in the frequency range from 10 kHz to 10 GHz. The choice of the processing route had considerable influence on structural and physical properties of MgTiO3 ceramics. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics
VL  - 42
IS  - 8
SP  - 9887
EP  - 9898
DO  - 10.1016/j.ceramint.2016.03.088
ER  - 
@article{
author = "Filipovic, S. and Obradovic, N. and Pavlović, Vladimir B. and Mitrić, Miodrag and Dordevic, A. and Kachlik, M. and Maca, K.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1037",
abstract = "The aim of this study is to explore the influence of the processing route on the structural and physical properties of bulk MgTiO3 ceramics. Commercially available MgO and TiO2 powders were mechanically activated in a planetary ball mill. Green bodies were formed by an isostatic pressure of 300 MPa. The sintering of these samples was done either by the Two-Step Sintering (TSS) approach or by conventional pressureless sintering followed by Hot Isostatic Pressing (post-HIPing). The first set of compacts was sintered by TSS in air at 1300 degrees C for 30 min and the next step was performed at 1200 degrees C for 20 h. The density of the obtained samples after the two-step sintering reached almost 90% of the theoretical density (%TD). The second set of compacts was sintered at 1400 degrees C for 30 min in air. The samples without open porosity were post-sintered by the HIP at 1200 degrees C for 2 h in an argon atmosphere at a pressure of 200 MPa. The density significantly increased up to 96%TD. The differences between samples prepared by these two techniques were also analyzed by XRD and SEM. The lattice vibration spectra were obtained using Raman spectroscopy and they indicate a high degree of lattice disorder, as well as high values of the oxygen vacancy concentration. Electrical characteristic were established in the frequency range from 10 kHz to 10 GHz. The choice of the processing route had considerable influence on structural and physical properties of MgTiO3 ceramics. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics",
volume = "42",
number = "8",
pages = "9887-9898",
doi = "10.1016/j.ceramint.2016.03.088"
}
Filipovic, S., Obradovic, N., Pavlović, V. B., Mitrić, M., Dordevic, A., Kachlik, M.,& Maca, K. (2016). Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics.
Ceramics International, 42(8), 9887-9898.
https://doi.org/10.1016/j.ceramint.2016.03.088
Filipovic S, Obradovic N, Pavlović VB, Mitrić M, Dordevic A, Kachlik M, Maca K. Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics. Ceramics International. 2016;42(8):9887-9898
Filipovic S., Obradovic N., Pavlović Vladimir B., Mitrić Miodrag, Dordevic A., Kachlik M., Maca K., "Effect of consolidation parameters on structural, microstructural and electrical properties of magnesium titanate ceramics" Ceramics International, 42, no. 8 (2016):9887-9898,
https://doi.org/10.1016/j.ceramint.2016.03.088 .
7
8
9

The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics

Obradovic, N.; Dordevic, N.; Peleš, Adriana; Filipovic, S.; Mitrić, Miodrag; Pavlović, Vladimir B.

(2015)

TY  - JOUR
AU  - Obradovic, N.
AU  - Dordevic, N.
AU  - Peleš, Adriana
AU  - Filipovic, S.
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/565
AB  - Due to its characteristics, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a high-temperature ceramic material of a great scientific interest. Mechanical activation of the starting mixtures containing 5.00 mass% TiO2 was performed in a high-energy ball mill for 10 minutes. The compaction pressure varied from 0.5 to 6tcm(-2) (49-588 MPa). The sintering process was performed at 1350 degrees C for four hours in the air atmosphere. The phase composition of the activated and sintered samples was analyzed using X-ray diffraction. Scanning electron microscopy was used to analyze the microstructure of both compacted and sintered samples. The authors have investigated the influence of compaction pressure on the sintered samples and their electrical properties.
T2  - Science of Sintering
T1  - The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics
VL  - 47
IS  - 1
SP  - 15
EP  - 22
DO  - 10.2298/SOS1501015O
ER  - 
@article{
author = "Obradovic, N. and Dordevic, N. and Peleš, Adriana and Filipovic, S. and Mitrić, Miodrag and Pavlović, Vladimir B.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/565",
abstract = "Due to its characteristics, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a high-temperature ceramic material of a great scientific interest. Mechanical activation of the starting mixtures containing 5.00 mass% TiO2 was performed in a high-energy ball mill for 10 minutes. The compaction pressure varied from 0.5 to 6tcm(-2) (49-588 MPa). The sintering process was performed at 1350 degrees C for four hours in the air atmosphere. The phase composition of the activated and sintered samples was analyzed using X-ray diffraction. Scanning electron microscopy was used to analyze the microstructure of both compacted and sintered samples. The authors have investigated the influence of compaction pressure on the sintered samples and their electrical properties.",
journal = "Science of Sintering",
title = "The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics",
volume = "47",
number = "1",
pages = "15-22",
doi = "10.2298/SOS1501015O"
}
Obradovic, N., Dordevic, N., Peleš, A., Filipovic, S., Mitrić, M.,& Pavlović, V. B. (2015). The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics.
Science of Sintering, 47(1), 15-22.
https://doi.org/10.2298/SOS1501015O
Obradovic N, Dordevic N, Peleš A, Filipovic S, Mitrić M, Pavlović VB. The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics. Science of Sintering. 2015;47(1):15-22
Obradovic N., Dordevic N., Peleš Adriana, Filipovic S., Mitrić Miodrag, Pavlović Vladimir B., "The Influence of Compaction Pressure on the Density and Electrical Properties of Cordierite-based Ceramics" Science of Sintering, 47, no. 1 (2015):15-22,
https://doi.org/10.2298/SOS1501015O .
3
7
6

Structural investigation of mechanically activated ZnO powder

Peleš, Adriana; Pavlović, Vera P.; Filipovic, S.; Obradovic, N.; Mancic, L.; Krstić, Jelena; Mitrić, Miodrag; Vlahović, Branislav; Rašić, Goran; Kosanovic, D.; Pavlović, Vladimir B.

(2015)

TY  - JOUR
AU  - Peleš, Adriana
AU  - Pavlović, Vera P.
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Mancic, L.
AU  - Krstić, Jelena
AU  - Mitrić, Miodrag
AU  - Vlahović, Branislav
AU  - Rašić, Goran
AU  - Kosanovic, D.
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/735
AB  - Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietvelds method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. (C) 2015 Published by Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Structural investigation of mechanically activated ZnO powder
VL  - 648
SP  - 971
EP  - 979
DO  - 10.1016/j.jallcom.2015.06.247
ER  - 
@article{
author = "Peleš, Adriana and Pavlović, Vera P. and Filipovic, S. and Obradovic, N. and Mancic, L. and Krstić, Jelena and Mitrić, Miodrag and Vlahović, Branislav and Rašić, Goran and Kosanovic, D. and Pavlović, Vladimir B.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/735",
abstract = "Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietvelds method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. (C) 2015 Published by Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Structural investigation of mechanically activated ZnO powder",
volume = "648",
pages = "971-979",
doi = "10.1016/j.jallcom.2015.06.247"
}
Peleš, A., Pavlović, V. P., Filipovic, S., Obradovic, N., Mancic, L., Krstić, J., Mitrić, M., Vlahović, B., Rašić, G., Kosanovic, D.,& Pavlović, V. B. (2015). Structural investigation of mechanically activated ZnO powder.
Journal of Alloys and Compounds, 648, 971-979.
https://doi.org/10.1016/j.jallcom.2015.06.247
Peleš A, Pavlović VP, Filipovic S, Obradovic N, Mancic L, Krstić J, Mitrić M, Vlahović B, Rašić G, Kosanovic D, Pavlović VB. Structural investigation of mechanically activated ZnO powder. Journal of Alloys and Compounds. 2015;648:971-979
Peleš Adriana, Pavlović Vera P., Filipovic S., Obradovic N., Mancic L., Krstić Jelena, Mitrić Miodrag, Vlahović Branislav, Rašić Goran, Kosanovic D., Pavlović Vladimir B., "Structural investigation of mechanically activated ZnO powder" Journal of Alloys and Compounds, 648 (2015):971-979,
https://doi.org/10.1016/j.jallcom.2015.06.247 .
8
9
9

Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate

Filipovic, S.; Obradovic, N.; Pavlović, Vladimir B.; Kosanovic, D.; Mitrić, Miodrag; Mitrovic, N.; Pouchly, V.; Kachlik, M.; Maca, K.

(2014)

TY  - JOUR
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Pavlović, Vladimir B.
AU  - Kosanovic, D.
AU  - Mitrić, Miodrag
AU  - Mitrovic, N.
AU  - Pouchly, V.
AU  - Kachlik, M.
AU  - Maca, K.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/373
AB  - In this article, the advantages of combined sintering in comparison with the conventional one, of mechanically activated magnesium titanate ceramic were investigated. The stoichiometric mixtures of MgO and TiO2 were mechano-chemically activated for 0, 10, 40, 80 and 160 minutes by ball milling and then isostatically pressed (CIP) to form green bodies. Conventional sintering was realized by heating up to 1400 degrees C and hold for 30 minutes in air atmosphere. Resulting ceramic samples with closed porosity were post-sintered by pressure assisted technique Hot Isostatic Pressing (HIP) at 1280 degrees C/3h in argon atmosphere with a pressure of 200 MPa. The best results were observed in the case of samples post-sintered by HIP, when single-phase MgTiO3 samples with relative density of 96% were prepared.
T2  - Science of Sintering
T1  - Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate
VL  - 46
IS  - 3
SP  - 283
EP  - 290
DO  - 10.2298/SOS1403283F
ER  - 
@article{
author = "Filipovic, S. and Obradovic, N. and Pavlović, Vladimir B. and Kosanovic, D. and Mitrić, Miodrag and Mitrovic, N. and Pouchly, V. and Kachlik, M. and Maca, K.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/373",
abstract = "In this article, the advantages of combined sintering in comparison with the conventional one, of mechanically activated magnesium titanate ceramic were investigated. The stoichiometric mixtures of MgO and TiO2 were mechano-chemically activated for 0, 10, 40, 80 and 160 minutes by ball milling and then isostatically pressed (CIP) to form green bodies. Conventional sintering was realized by heating up to 1400 degrees C and hold for 30 minutes in air atmosphere. Resulting ceramic samples with closed porosity were post-sintered by pressure assisted technique Hot Isostatic Pressing (HIP) at 1280 degrees C/3h in argon atmosphere with a pressure of 200 MPa. The best results were observed in the case of samples post-sintered by HIP, when single-phase MgTiO3 samples with relative density of 96% were prepared.",
journal = "Science of Sintering",
title = "Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate",
volume = "46",
number = "3",
pages = "283-290",
doi = "10.2298/SOS1403283F"
}
Filipovic, S., Obradovic, N., Pavlović, V. B., Kosanovic, D., Mitrić, M., Mitrovic, N., Pouchly, V., Kachlik, M.,& Maca, K. (2014). Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate.
Science of Sintering, 46(3), 283-290.
https://doi.org/10.2298/SOS1403283F
Filipovic S, Obradovic N, Pavlović VB, Kosanovic D, Mitrić M, Mitrovic N, Pouchly V, Kachlik M, Maca K. Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate. Science of Sintering. 2014;46(3):283-290
Filipovic S., Obradovic N., Pavlović Vladimir B., Kosanovic D., Mitrić Miodrag, Mitrovic N., Pouchly V., Kachlik M., Maca K., "Advantages of Combined Sintering Compared to Conventional Sintering of Mechanically Activated Magnesium Titanate" Science of Sintering, 46, no. 3 (2014):283-290,
https://doi.org/10.2298/SOS1403283F .
3
3
4

Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C

Obradovic, N.; Filipovic, S.; Mitrić, Miodrag; Pavlović, Vladimir B.; Paunović, Verica G.; Kosanovic, D.; Balac, I.; Ristic, M. M.

(2012)

TY  - JOUR
AU  - Obradovic, N.
AU  - Filipovic, S.
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Paunović, Verica G.
AU  - Kosanovic, D.
AU  - Balac, I.
AU  - Ristic, M. M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4809
AB  - Starting mixtures of BaCO3, ZnO, and TiO2 powders are mechanically activated in a planetary ball mill for various periods of time. The powders obtained are sintered isothermally at 1100A degrees C for 120 min. Non-isothermal sintering process is followed by measurements with a sensitive dilatometer, as well. Results of microstructure characterization using SEM analyses along with DTA analyses are provided. These results are correlated with the values of electric resistivity, capacitance, and loss tangent of the samples, and it is found that with increasing milling time, the increase in values of electrical properties is noticed.
T2  - Powder Metallurgy and Metal Ceramics
T1  - Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C
VL  - 50
IS  - 11-12
SP  - 714
EP  - 718
DO  - 10.1007/s11106-012-9380-y
ER  - 
@article{
author = "Obradovic, N. and Filipovic, S. and Mitrić, Miodrag and Pavlović, Vladimir B. and Paunović, Verica G. and Kosanovic, D. and Balac, I. and Ristic, M. M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4809",
abstract = "Starting mixtures of BaCO3, ZnO, and TiO2 powders are mechanically activated in a planetary ball mill for various periods of time. The powders obtained are sintered isothermally at 1100A degrees C for 120 min. Non-isothermal sintering process is followed by measurements with a sensitive dilatometer, as well. Results of microstructure characterization using SEM analyses along with DTA analyses are provided. These results are correlated with the values of electric resistivity, capacitance, and loss tangent of the samples, and it is found that with increasing milling time, the increase in values of electrical properties is noticed.",
journal = "Powder Metallurgy and Metal Ceramics",
title = "Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C",
volume = "50",
number = "11-12",
pages = "714-718",
doi = "10.1007/s11106-012-9380-y"
}
Obradovic, N., Filipovic, S., Mitrić, M., Pavlović, V. B., Paunović, V. G., Kosanovic, D., Balac, I.,& Ristic, M. M. (2012). Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C.
Powder Metallurgy and Metal Ceramics, 50(11-12), 714-718.
https://doi.org/10.1007/s11106-012-9380-y
Obradovic N, Filipovic S, Mitrić M, Pavlović VB, Paunović VG, Kosanovic D, Balac I, Ristic MM. Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C. Powder Metallurgy and Metal Ceramics. 2012;50(11-12):714-718
Obradovic N., Filipovic S., Mitrić Miodrag, Pavlović Vladimir B., Paunović Verica G., Kosanovic D., Balac I., Ristic M. M., "Influence of mechanical activation on electrical properties of barium-zinc-titanate ceramics sintered at 1100A degrees C" Powder Metallurgy and Metal Ceramics, 50, no. 11-12 (2012):714-718,
https://doi.org/10.1007/s11106-012-9380-y .

Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive

Obradovic, N.; Dordevic, N.; Filipovic, S.; Nikolic, N.; Kosanovic, D.; Mitrić, Miodrag; Markovic, S.; Pavlović, Vladimir B.

(2012)

TY  - JOUR
AU  - Obradovic, N.
AU  - Dordevic, N.
AU  - Filipovic, S.
AU  - Nikolic, N.
AU  - Kosanovic, D.
AU  - Mitrić, Miodrag
AU  - Markovic, S.
AU  - Pavlović, Vladimir B.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4702
AB  - Due to its outstanding electrical characteristics, such as the low temperature expansion coefficient, low dielectric constant and good mechanical properties, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a very attractive high-temperature ceramic material. In order to accelerate the process of sintering, 2.50 mass% Bi2O3 has been added to the starting mixtures. Liquid phase sintering caused by the presence of bismuth-oxide lowers the temperature of cordierite formation. The mechanical activation of the starting mixtures (0-56 min in vibro-mill) additionally lowers sintering temperatures. The sintering process was performed at 1200, 1300, 1350 and 1400 degrees C, for 2 h. The particle size analysis (PSA) was employed in order to determine the changes in the particle size of the mechanically treated powders. The phase composition of the starting powders and sintered materials was analyzed by the X-ray diffraction method. Furthermore, scanning electron microscopy (SEM) was used in the analysis of the powder morphology. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Powder Technology
T1  - Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive
VL  - 218
SP  - 157
EP  - 161
DO  - 10.1016/j.powtec.2011.12.012
ER  - 
@article{
author = "Obradovic, N. and Dordevic, N. and Filipovic, S. and Nikolic, N. and Kosanovic, D. and Mitrić, Miodrag and Markovic, S. and Pavlović, Vladimir B.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4702",
abstract = "Due to its outstanding electrical characteristics, such as the low temperature expansion coefficient, low dielectric constant and good mechanical properties, cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2), is a very attractive high-temperature ceramic material. In order to accelerate the process of sintering, 2.50 mass% Bi2O3 has been added to the starting mixtures. Liquid phase sintering caused by the presence of bismuth-oxide lowers the temperature of cordierite formation. The mechanical activation of the starting mixtures (0-56 min in vibro-mill) additionally lowers sintering temperatures. The sintering process was performed at 1200, 1300, 1350 and 1400 degrees C, for 2 h. The particle size analysis (PSA) was employed in order to determine the changes in the particle size of the mechanically treated powders. The phase composition of the starting powders and sintered materials was analyzed by the X-ray diffraction method. Furthermore, scanning electron microscopy (SEM) was used in the analysis of the powder morphology. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Powder Technology",
title = "Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive",
volume = "218",
pages = "157-161",
doi = "10.1016/j.powtec.2011.12.012"
}
Obradovic, N., Dordevic, N., Filipovic, S., Nikolic, N., Kosanovic, D., Mitrić, M., Markovic, S.,& Pavlović, V. B. (2012). Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive.
Powder Technology, 218, 157-161.
https://doi.org/10.1016/j.powtec.2011.12.012
Obradovic N, Dordevic N, Filipovic S, Nikolic N, Kosanovic D, Mitrić M, Markovic S, Pavlović VB. Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive. Powder Technology. 2012;218:157-161
Obradovic N., Dordevic N., Filipovic S., Nikolic N., Kosanovic D., Mitrić Miodrag, Markovic S., Pavlović Vladimir B., "Influence of mechanochemical activation on the sintering of cordierite ceramics in the presence of Bi2O3 as a functional additive" Powder Technology, 218 (2012):157-161,
https://doi.org/10.1016/j.powtec.2011.12.012 .
28
28
37

Synthesis of Barium-zinc-titanate Ceramics

Obradovic, N.; Nikolic, M. V.; Nikolic, N.; Filipovic, S.; Mitrić, Miodrag; Pavlović, Vladimir B.; Nikolic, P. M.; Dordevic, A. R.; Ristic, M. M.

(2012)

TY  - JOUR
AU  - Obradovic, N.
AU  - Nikolic, M. V.
AU  - Nikolic, N.
AU  - Filipovic, S.
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Nikolic, P. M.
AU  - Dordevic, A. R.
AU  - Ristic, M. M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5467
AB  - Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 degrees C for 2h with a heating rate of 10 degrees C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the phase composition. The microstructure of sintered samples was examined by scanning electron microscopy. The photoacoustic phase and amplitude spectra of sintered samples were measured as a function of the laser beam modulating frequency using a transmission detection configuration. Fitting of experimental data enabled determination of photoacoustic properties including thermal diffusivity. Based on the results obtained correlation between thermal diffusivity and experimental conditions, as well the samples microstructure characteristics, was discussed.
T2  - Science of Sintering
T1  - Synthesis of Barium-zinc-titanate Ceramics
VL  - 44
IS  - 1
SP  - 65
EP  - 71
DO  - 10.2298/SOS1201065O
ER  - 
@article{
author = "Obradovic, N. and Nikolic, M. V. and Nikolic, N. and Filipovic, S. and Mitrić, Miodrag and Pavlović, Vladimir B. and Nikolic, P. M. and Dordevic, A. R. and Ristic, M. M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5467",
abstract = "Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 degrees C for 2h with a heating rate of 10 degrees C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the phase composition. The microstructure of sintered samples was examined by scanning electron microscopy. The photoacoustic phase and amplitude spectra of sintered samples were measured as a function of the laser beam modulating frequency using a transmission detection configuration. Fitting of experimental data enabled determination of photoacoustic properties including thermal diffusivity. Based on the results obtained correlation between thermal diffusivity and experimental conditions, as well the samples microstructure characteristics, was discussed.",
journal = "Science of Sintering",
title = "Synthesis of Barium-zinc-titanate Ceramics",
volume = "44",
number = "1",
pages = "65-71",
doi = "10.2298/SOS1201065O"
}
Obradovic, N., Nikolic, M. V., Nikolic, N., Filipovic, S., Mitrić, M., Pavlović, V. B., Nikolic, P. M., Dordevic, A. R.,& Ristic, M. M. (2012). Synthesis of Barium-zinc-titanate Ceramics.
Science of Sintering, 44(1), 65-71.
https://doi.org/10.2298/SOS1201065O
Obradovic N, Nikolic MV, Nikolic N, Filipovic S, Mitrić M, Pavlović VB, Nikolic PM, Dordevic AR, Ristic MM. Synthesis of Barium-zinc-titanate Ceramics. Science of Sintering. 2012;44(1):65-71
Obradovic N., Nikolic M. V., Nikolic N., Filipovic S., Mitrić Miodrag, Pavlović Vladimir B., Nikolic P. M., Dordevic A. R., Ristic M. M., "Synthesis of Barium-zinc-titanate Ceramics" Science of Sintering, 44, no. 1 (2012):65-71,
https://doi.org/10.2298/SOS1201065O .
3
2
3

Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics

Obradovic, N.; Filipovic, S.; Pavlović, Vladimir B.; Paunović, Verica G.; Mitrić, Miodrag; Ristic, M. M.

(2011)

TY  - JOUR
AU  - Obradovic, N.
AU  - Filipovic, S.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Verica G.
AU  - Mitrić, Miodrag
AU  - Ristic, M. M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6925
AB  - The aim of this work was an investigation of structural and electrical properties of sintered barium-zinc-titanate ceramics. Mixtures of BaCO(3), ZnO and TiO(2) were mechanically activated in a planetary ball mill up to 80 minutes and sintered isothermally in air for 120 minutes at 1300 degrees C. The phase composition in the BaCO(3)-ZnO-TiO(2) system after milling and sintering was analyzed using the XRD method. The existence of pure barium-zinc-titanate has been registered. Microstructure analyses were performed using SEM. The results of electric resistivity, capacitance and loss tangent of the sintered samples were correlated with the XRD and SEM results.
T2  - Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics
T1  - Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics
VL  - 120
IS  - 2
SP  - 322
EP  - 325
DO  - 10.12693/APhysPolA.120.322
ER  - 
@article{
author = "Obradovic, N. and Filipovic, S. and Pavlović, Vladimir B. and Paunović, Verica G. and Mitrić, Miodrag and Ristic, M. M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6925",
abstract = "The aim of this work was an investigation of structural and electrical properties of sintered barium-zinc-titanate ceramics. Mixtures of BaCO(3), ZnO and TiO(2) were mechanically activated in a planetary ball mill up to 80 minutes and sintered isothermally in air for 120 minutes at 1300 degrees C. The phase composition in the BaCO(3)-ZnO-TiO(2) system after milling and sintering was analyzed using the XRD method. The existence of pure barium-zinc-titanate has been registered. Microstructure analyses were performed using SEM. The results of electric resistivity, capacitance and loss tangent of the sintered samples were correlated with the XRD and SEM results.",
journal = "Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics",
title = "Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics",
volume = "120",
number = "2",
pages = "322-325",
doi = "10.12693/APhysPolA.120.322"
}
Obradovic, N., Filipovic, S., Pavlović, V. B., Paunović, V. G., Mitrić, M.,& Ristic, M. M. (2011). Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics.
Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 120(2), 322-325.
https://doi.org/10.12693/APhysPolA.120.322
Obradovic N, Filipovic S, Pavlović VB, Paunović VG, Mitrić M, Ristic MM. Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics. Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics. 2011;120(2):322-325
Obradovic N., Filipovic S., Pavlović Vladimir B., Paunović Verica G., Mitrić Miodrag, Ristic M. M., "Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics" Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 120, no. 2 (2011):322-325,
https://doi.org/10.12693/APhysPolA.120.322 .
4
3
3

Isothermal sintering of barium-zinc-titanate ceramics

Obradovic, N.; Filipovic, S.; Pavlović, Vladimir B.; Mitrić, Miodrag; Markovic, S.; Mitic, V.; Dordevic, N.; Ristic, M. M.

(2011)

TY  - JOUR
AU  - Obradovic, N.
AU  - Filipovic, S.
AU  - Pavlović, Vladimir B.
AU  - Mitrić, Miodrag
AU  - Markovic, S.
AU  - Mitic, V.
AU  - Dordevic, N.
AU  - Ristic, M. M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4186
AB  - Mixtures of BaCO(3)-ZnO-TiO(2) were mechanically activated using high-energy planetary ball mill during 20, 40 and 80 min. As the time of mechanical activation increased, the decrease in particle size was observed. The effect of milling on microstructure was investigated by scanning electron microscopy, as well. Sintering process was performed in air at 1100 and 1200 C for 2 h. Various phases are present within mixtures sintered at 1100 and 1200 degrees C, and almost pure BaZn(2)Ti(4)O(11) phase was obtained after 80 min of milling and sintering at 1200 degrees C for 2 h. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Isothermal sintering of barium-zinc-titanate ceramics
VL  - 37
IS  - 1
SP  - 21
EP  - 27
DO  - 10.1016/j.ceramint.2010.07.001
ER  - 
@article{
author = "Obradovic, N. and Filipovic, S. and Pavlović, Vladimir B. and Mitrić, Miodrag and Markovic, S. and Mitic, V. and Dordevic, N. and Ristic, M. M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4186",
abstract = "Mixtures of BaCO(3)-ZnO-TiO(2) were mechanically activated using high-energy planetary ball mill during 20, 40 and 80 min. As the time of mechanical activation increased, the decrease in particle size was observed. The effect of milling on microstructure was investigated by scanning electron microscopy, as well. Sintering process was performed in air at 1100 and 1200 C for 2 h. Various phases are present within mixtures sintered at 1100 and 1200 degrees C, and almost pure BaZn(2)Ti(4)O(11) phase was obtained after 80 min of milling and sintering at 1200 degrees C for 2 h. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Isothermal sintering of barium-zinc-titanate ceramics",
volume = "37",
number = "1",
pages = "21-27",
doi = "10.1016/j.ceramint.2010.07.001"
}
Obradovic, N., Filipovic, S., Pavlović, V. B., Mitrić, M., Markovic, S., Mitic, V., Dordevic, N.,& Ristic, M. M. (2011). Isothermal sintering of barium-zinc-titanate ceramics.
Ceramics International, 37(1), 21-27.
https://doi.org/10.1016/j.ceramint.2010.07.001
Obradovic N, Filipovic S, Pavlović VB, Mitrić M, Markovic S, Mitic V, Dordevic N, Ristic MM. Isothermal sintering of barium-zinc-titanate ceramics. Ceramics International. 2011;37(1):21-27
Obradovic N., Filipovic S., Pavlović Vladimir B., Mitrić Miodrag, Markovic S., Mitic V., Dordevic N., Ristic M. M., "Isothermal sintering of barium-zinc-titanate ceramics" Ceramics International, 37, no. 1 (2011):21-27,
https://doi.org/10.1016/j.ceramint.2010.07.001 .
4
6
4

Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System

Filipovic, S.; Obradovic, N.; Pavlović, Vladimir B.; Markovic, S.; Mitrić, Miodrag; Ristic, M. M.

(2010)

TY  - JOUR
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Pavlović, Vladimir B.
AU  - Markovic, S.
AU  - Mitrić, Miodrag
AU  - Ristic, M. M.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4127
AB  - Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100 degrees-1400 degrees C for 2h. The decrease in powders particle size was noticed as the time of mechanical activation increased and confirmed by particle size analyzer. XRD analyses were performed in order to acquire the information about phase composition. Different ratio mixtures of MgTiO3 and Mg2TiO4 are present within all sintered samples. The effect of tribophysical activation on microstructure was investigated by scanning electron microscopy. The differential thermal gravimetric analysis has been performed in order to investigate thermal behaviour of the mixtures.
T2  - Science of Sintering
T1  - Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System
VL  - 42
IS  - 2
SP  - 143
EP  - 151
DO  - 10.2298/SOS100518002F
ER  - 
@article{
author = "Filipovic, S. and Obradovic, N. and Pavlović, Vladimir B. and Markovic, S. and Mitrić, Miodrag and Ristic, M. M.",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4127",
abstract = "Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100 degrees-1400 degrees C for 2h. The decrease in powders particle size was noticed as the time of mechanical activation increased and confirmed by particle size analyzer. XRD analyses were performed in order to acquire the information about phase composition. Different ratio mixtures of MgTiO3 and Mg2TiO4 are present within all sintered samples. The effect of tribophysical activation on microstructure was investigated by scanning electron microscopy. The differential thermal gravimetric analysis has been performed in order to investigate thermal behaviour of the mixtures.",
journal = "Science of Sintering",
title = "Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System",
volume = "42",
number = "2",
pages = "143-151",
doi = "10.2298/SOS100518002F"
}
Filipovic, S., Obradovic, N., Pavlović, V. B., Markovic, S., Mitrić, M.,& Ristic, M. M. (2010). Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System.
Science of Sintering, 42(2), 143-151.
https://doi.org/10.2298/SOS100518002F
Filipovic S, Obradovic N, Pavlović VB, Markovic S, Mitrić M, Ristic MM. Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System. Science of Sintering. 2010;42(2):143-151
Filipovic S., Obradovic N., Pavlović Vladimir B., Markovic S., Mitrić Miodrag, Ristic M. M., "Influence of Mechanical Activation on Microstructure and Crystal Structure of Sintered MgO-TiO2 System" Science of Sintering, 42, no. 2 (2010):143-151,
https://doi.org/10.2298/SOS100518002F .
13
12
13

Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics

Filipovic, S.; Obradovic, N.; Pavlović, Vladimir B.; Petrovic, V.; Mitrić, Miodrag

(2009)

TY  - JOUR
AU  - Filipovic, S.
AU  - Obradovic, N.
AU  - Pavlović, Vladimir B.
AU  - Petrovic, V.
AU  - Mitrić, Miodrag
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3257
AB  - The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that sintered at 1100 degrees C for 1h. XRD analyses were performed in order to give information about the phase composition and to determine a variety of microstructure parameters using Scherrers method. Also, the effect of tribophysical activation and sintering process on microstructure was investigated by scanning electron microscopy. Electrical measurements were performed in order to determine electrical properties of sintered samples. Our conclusions are that the sample activated for 120 min showed the best electrical properties (epsilon(r)=23.86, Q=233, rho=0.38) and exhibited the best sinterability.
T2  - Science of Sintering
T1  - Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics
VL  - 41
IS  - 2
SP  - 117
EP  - 123
DO  - 10.2298/SOS0902117F
ER  - 
@article{
author = "Filipovic, S. and Obradovic, N. and Pavlović, Vladimir B. and Petrovic, V. and Mitrić, Miodrag",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3257",
abstract = "The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that sintered at 1100 degrees C for 1h. XRD analyses were performed in order to give information about the phase composition and to determine a variety of microstructure parameters using Scherrers method. Also, the effect of tribophysical activation and sintering process on microstructure was investigated by scanning electron microscopy. Electrical measurements were performed in order to determine electrical properties of sintered samples. Our conclusions are that the sample activated for 120 min showed the best electrical properties (epsilon(r)=23.86, Q=233, rho=0.38) and exhibited the best sinterability.",
journal = "Science of Sintering",
title = "Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics",
volume = "41",
number = "2",
pages = "117-123",
doi = "10.2298/SOS0902117F"
}
Filipovic, S., Obradovic, N., Pavlović, V. B., Petrovic, V.,& Mitrić, M. (2009). Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics.
Science of Sintering, 41(2), 117-123.
https://doi.org/10.2298/SOS0902117F
Filipovic S, Obradovic N, Pavlović VB, Petrovic V, Mitrić M. Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics. Science of Sintering. 2009;41(2):117-123
Filipovic S., Obradovic N., Pavlović Vladimir B., Petrovic V., Mitrić Miodrag, "Influence of Mechanical Activation on Structural and Electrical Properties of Sintered MgTiO3 Ceramics" Science of Sintering, 41, no. 2 (2009):117-123,
https://doi.org/10.2298/SOS0902117F .
4
5
4