TY  - JOUR
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Labus, Nebojša
AU  - Tadić, Nenad B.
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4080
AB  - Barium strontium titanate powders with different Ba:Sr ratios were investigated to determine the influence of the initial composition of powder mixture on microstructural properties and sintering kinetics. It was determined that BaCO3 and SrCO3 react differently to mixing, resulting in Ba0.5Sr0.5CO3 in the sample with 80% Ba and different contents of Ba1-xSrxTiO3 in samples with 50% and 20% Ba. In addition, the morphology is also different, with higher Sr content leading to larger particles size and less agglomeration. The different chemical content of the initial powder mixture also has a marked impact on the sintering process: the onset of sintering shifts towards higher temperature with higher Sr content, while the average apparent activation energy of sintering is the highest for the sample with 80% Ba and the lowest for the mixture with 50% Ba. In addition, hexagonal-to-cubic phase transformation was observed in parallel with the sintering process, where the position of the phase transition shifts to lower temperatures with an increase in Sr content. This is consistent with the behavior of low-temperature phase transitions of BST. The phase transition was not observed in sintered samples, suggesting that there is a size-dependence of the phase transition temperature. © 2016 Authors.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders
SP  - 29
EP  - 38
VL  - 50
IS  - 1
DO  - 10.2298/SOS1801029K
UR  - https://hdl.handle.net/21.15107/rcub_dais_4080
ER  - 

@article{
author = "Kosanović, Darko and Blagojević, Vladimir A. and Labus, Nebojša and Tadić, Nenad B. and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2018",
abstract = "Barium strontium titanate powders with different Ba:Sr ratios were investigated to determine the influence of the initial composition of powder mixture on microstructural properties and sintering kinetics. It was determined that BaCO3 and SrCO3 react differently to mixing, resulting in Ba0.5Sr0.5CO3 in the sample with 80% Ba and different contents of Ba1-xSrxTiO3 in samples with 50% and 20% Ba. In addition, the morphology is also different, with higher Sr content leading to larger particles size and less agglomeration. The different chemical content of the initial powder mixture also has a marked impact on the sintering process: the onset of sintering shifts towards higher temperature with higher Sr content, while the average apparent activation energy of sintering is the highest for the sample with 80% Ba and the lowest for the mixture with 50% Ba. In addition, hexagonal-to-cubic phase transformation was observed in parallel with the sintering process, where the position of the phase transition shifts to lower temperatures with an increase in Sr content. This is consistent with the behavior of low-temperature phase transitions of BST. The phase transition was not observed in sintered samples, suggesting that there is a size-dependence of the phase transition temperature. © 2016 Authors.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders",
pages = "29-38",
volume = "50",
number = "1",
doi = "10.2298/SOS1801029K",
url = "https://hdl.handle.net/21.15107/rcub_dais_4080"
}

Kosanović, D., Blagojević, V. A., Labus, N., Tadić, N. B., Pavlović, V. B.,& Ristić, M. M.. (2018). Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders. in Science of Sintering
Belgrade : ETRAN., 50(1), 29-38.
https://doi.org/10.2298/SOS1801029K
https://hdl.handle.net/21.15107/rcub_dais_4080

Kosanović D, Blagojević VA, Labus N, Tadić NB, Pavlović VB, Ristić MM. Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders. in Science of Sintering. 2018;50(1):29-38.
doi:10.2298/SOS1801029K
https://hdl.handle.net/21.15107/rcub_dais_4080 .

Kosanović, Darko, Blagojević, Vladimir A., Labus, Nebojša, Tadić, Nenad B., Pavlović, Vladimir B., Ristić, Momčilo M., "Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders" in Science of Sintering, 50, no. 1 (2018):29-38,
https://doi.org/10.2298/SOS1801029K .,
https://hdl.handle.net/21.15107/rcub_dais_4080 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Marković, Smilja
AU  - Maričić, Aleksa
AU  - Rasić, G.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/2311
AB  - Crystal structure and morphology of mechanically activated nanocrystalline Fe/BaTiO3 was investigated using a combination of spectroscopic and microscopic methods. These show that mechanical activation led to the creation of new surfaces and the comminution of the initial powder particles. Prolonged milling resulted in formation of larger agglomerates of BaTiO3 and bimodal particle size distribution, where BaTiO3 particles were significantly larger than those of iron-containing phases. Milling times of 210 min and above lead to a significant decrease in temperature of the oxidation of iron in the sample, indicating abrupt change in reactivity. Raman spectroscopy analysis has revealed that activation had a pronounced influence on Fe/BaTiO3 lattice, thereby affecting both the stability of the crystal structure and the phase transition phenomena.
PB  - Elsevier
T2  - Materials Science and Engineering: B
T1  - The influence of mechanical activation on the morphological changes of Fe/BaTiO3 powder
SP  - 89
EP  - 95
VL  - 212
DO  - 10.1016/j.mseb.2016.07.016
UR  - https://hdl.handle.net/21.15107/rcub_dais_2311
ER  - 

@article{
author = "Kosanović, Darko and Obradović, Nina and Pavlović, Vera P. and Marković, Smilja and Maričić, Aleksa and Rasić, G. and Vlahović, Branislav and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2016",
abstract = "Crystal structure and morphology of mechanically activated nanocrystalline Fe/BaTiO3 was investigated using a combination of spectroscopic and microscopic methods. These show that mechanical activation led to the creation of new surfaces and the comminution of the initial powder particles. Prolonged milling resulted in formation of larger agglomerates of BaTiO3 and bimodal particle size distribution, where BaTiO3 particles were significantly larger than those of iron-containing phases. Milling times of 210 min and above lead to a significant decrease in temperature of the oxidation of iron in the sample, indicating abrupt change in reactivity. Raman spectroscopy analysis has revealed that activation had a pronounced influence on Fe/BaTiO3 lattice, thereby affecting both the stability of the crystal structure and the phase transition phenomena.",
publisher = "Elsevier",
journal = "Materials Science and Engineering: B",
title = "The influence of mechanical activation on the morphological changes of Fe/BaTiO3 powder",
pages = "89-95",
volume = "212",
doi = "10.1016/j.mseb.2016.07.016",
url = "https://hdl.handle.net/21.15107/rcub_dais_2311"
}

Kosanović, D., Obradović, N., Pavlović, V. P., Marković, S., Maričić, A., Rasić, G., Vlahović, B., Pavlović, V. B.,& Ristić, M. M.. (2016). The influence of mechanical activation on the morphological changes of Fe/BaTiO3 powder. in Materials Science and Engineering: B
Elsevier., 212, 89-95.
https://doi.org/10.1016/j.mseb.2016.07.016
https://hdl.handle.net/21.15107/rcub_dais_2311

Kosanović D, Obradović N, Pavlović VP, Marković S, Maričić A, Rasić G, Vlahović B, Pavlović VB, Ristić MM. The influence of mechanical activation on the morphological changes of Fe/BaTiO3 powder. in Materials Science and Engineering: B. 2016;212:89-95.
doi:10.1016/j.mseb.2016.07.016
https://hdl.handle.net/21.15107/rcub_dais_2311 .

Kosanović, Darko, Obradović, Nina, Pavlović, Vera P., Marković, Smilja, Maričić, Aleksa, Rasić, G., Vlahović, Branislav, Pavlović, Vladimir B., Ristić, Momčilo M., "The influence of mechanical activation on the morphological changes of Fe/BaTiO3 powder" in Materials Science and Engineering: B, 212 (2016):89-95,
https://doi.org/10.1016/j.mseb.2016.07.016 .,
https://hdl.handle.net/21.15107/rcub_dais_2311 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Živojinović, Jelena
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Peleš, Adriana
AU  - Ristić, Momčilo M.
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/544
AB  - Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.
PB  - Elsevier
T2  - Ceramics International
T1  - The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
SP  - 11883
EP  - 11888
IS  - 8, Part A
DO  - 10.1016/j.ceramint.2014.04.023
UR  - https://hdl.handle.net/21.15107/rcub_dais_544
ER  - 

@article{
author = "Kosanović, Darko and Živojinović, Jelena and Obradović, Nina and Pavlović, Vera P. and Pavlović, Vladimir B. and Peleš, Adriana and Ristić, Momčilo M.",
year = "2014",
abstract = "Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics",
pages = "11883-11888",
number = "8, Part A",
doi = "10.1016/j.ceramint.2014.04.023",
url = "https://hdl.handle.net/21.15107/rcub_dais_544"
}

Kosanović, D., Živojinović, J., Obradović, N., Pavlović, V. P., Pavlović, V. B., Peleš, A.,& Ristić, M. M.. (2014). The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International
Elsevier.(8, Part A), 11883-11888.
https://doi.org/10.1016/j.ceramint.2014.04.023
https://hdl.handle.net/21.15107/rcub_dais_544

Kosanović D, Živojinović J, Obradović N, Pavlović VP, Pavlović VB, Peleš A, Ristić MM. The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International. 2014;(8, Part A):11883-11888.
doi:10.1016/j.ceramint.2014.04.023
https://hdl.handle.net/21.15107/rcub_dais_544 .

Kosanović, Darko, Živojinović, Jelena, Obradović, Nina, Pavlović, Vera P., Pavlović, Vladimir B., Peleš, Adriana, Ristić, Momčilo M., "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics" in Ceramics International, no. 8, Part A (2014):11883-11888,
https://doi.org/10.1016/j.ceramint.2014.04.023 .,
https://hdl.handle.net/21.15107/rcub_dais_544 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Živojinović, Jelena
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Peleš, Adriana
AU  - Ristić, Momčilo M.
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/543
AB  - Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.
T2  - Ceramics International
T1  - The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
SP  - 11883
EP  - 11888
VL  - 40
IS  - 8, Part A
DO  - 10.1016/j.ceramint.2014.04.023
UR  - https://hdl.handle.net/21.15107/rcub_dais_543
ER  - 

@article{
author = "Kosanović, Darko and Živojinović, Jelena and Obradović, Nina and Pavlović, Vera P. and Pavlović, Vladimir B. and Peleš, Adriana and Ristić, Momčilo M.",
year = "2014",
abstract = "Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.",
journal = "Ceramics International",
title = "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics",
pages = "11883-11888",
volume = "40",
number = "8, Part A",
doi = "10.1016/j.ceramint.2014.04.023",
url = "https://hdl.handle.net/21.15107/rcub_dais_543"
}

Kosanović, D., Živojinović, J., Obradović, N., Pavlović, V. P., Pavlović, V. B., Peleš, A.,& Ristić, M. M.. (2014). The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International, 40(8, Part A), 11883-11888.
https://doi.org/10.1016/j.ceramint.2014.04.023
https://hdl.handle.net/21.15107/rcub_dais_543

Kosanović D, Živojinović J, Obradović N, Pavlović VP, Pavlović VB, Peleš A, Ristić MM. The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International. 2014;40(8, Part A):11883-11888.
doi:10.1016/j.ceramint.2014.04.023
https://hdl.handle.net/21.15107/rcub_dais_543 .

Kosanović, Darko, Živojinović, Jelena, Obradović, Nina, Pavlović, Vera P., Pavlović, Vladimir B., Peleš, Adriana, Ristić, Momčilo M., "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics" in Ceramics International, 40, no. 8, Part A (2014):11883-11888,
https://doi.org/10.1016/j.ceramint.2014.04.023 .,
https://hdl.handle.net/21.15107/rcub_dais_543 .

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/348
AB  - In this article the influence of ball miling process on structure of MgO–TiO2 system, as well as the electrical properties of samples after sintering, was investigated. The mixtures of MgO–TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 min. The influence of mechanical activation and sintering on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 min of activation and increased after that, reaching its minimum value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation. The small differences noticed in the Raman spectra of sintered samples have been explained by structural modification of MgTiO3 phase due to the presence of defects.

The effects of activation and sintering process on microstructure were investigated by scanning electron microscopy (SEM). The electrical measurements showed difference in dielectric constant (εr), loss tangent (tg δ) and specific resistance (ρ) as a function of time of mechanical treatment.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural characterization and electrical properties of sintered magnesium–titanate ceramics
SP  - 39
EP  - 44
VL  - 555
IS  - 5
DO  - 10.1016/j.jallcom.2012.12.040
UR  - https://hdl.handle.net/21.15107/rcub_dais_348
ER  - 

@article{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Šćepanović, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2013",
abstract = "In this article the influence of ball miling process on structure of MgO–TiO2 system, as well as the electrical properties of samples after sintering, was investigated. The mixtures of MgO–TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 min. The influence of mechanical activation and sintering on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 min of activation and increased after that, reaching its minimum value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation. The small differences noticed in the Raman spectra of sintered samples have been explained by structural modification of MgTiO3 phase due to the presence of defects.

The effects of activation and sintering process on microstructure were investigated by scanning electron microscopy (SEM). The electrical measurements showed difference in dielectric constant (εr), loss tangent (tg δ) and specific resistance (ρ) as a function of time of mechanical treatment.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural characterization and electrical properties of sintered magnesium–titanate ceramics",
pages = "39-44",
volume = "555",
number = "5",
doi = "10.1016/j.jallcom.2012.12.040",
url = "https://hdl.handle.net/21.15107/rcub_dais_348"
}

Filipović, S., Obradović, N., Krstić, J., Šćepanović, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2013). Structural characterization and electrical properties of sintered magnesium–titanate ceramics. in Journal of Alloys and Compounds
Elsevier., 555(5), 39-44.
https://doi.org/10.1016/j.jallcom.2012.12.040
https://hdl.handle.net/21.15107/rcub_dais_348

Filipović S, Obradović N, Krstić J, Šćepanović M, Pavlović VB, Paunović V, Ristić MM. Structural characterization and electrical properties of sintered magnesium–titanate ceramics. in Journal of Alloys and Compounds. 2013;555(5):39-44.
doi:10.1016/j.jallcom.2012.12.040
https://hdl.handle.net/21.15107/rcub_dais_348 .

Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Šćepanović, M., Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Structural characterization and electrical properties of sintered magnesium–titanate ceramics" in Journal of Alloys and Compounds, 555, no. 5 (2013):39-44,
https://doi.org/10.1016/j.jallcom.2012.12.040 .,
https://hdl.handle.net/21.15107/rcub_dais_348 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Živojinović, Jelena
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Peleš, Adriana
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/151
AB  - Poster presented at the conference Advanced Ceramics and Application II – Serbian Ceramic Society, Belgrade, September 30 – October 1, 2013
T1  - The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3
UR  - https://hdl.handle.net/21.15107/rcub_dais_151
ER  - 

@conference{
author = "Kosanović, Darko and Živojinović, Jelena and Obradović, Nina and Pavlović, Vera P. and Pavlović, Vladimir B. and Peleš, Adriana and Ristić, Momčilo M.",
year = "2013",
abstract = "Poster presented at the conference Advanced Ceramics and Application II – Serbian Ceramic Society, Belgrade, September 30 – October 1, 2013",
title = "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3",
url = "https://hdl.handle.net/21.15107/rcub_dais_151"
}

Kosanović, D., Živojinović, J., Obradović, N., Pavlović, V. P., Pavlović, V. B., Peleš, A.,& Ristić, M. M.. (2013). The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3. .
https://hdl.handle.net/21.15107/rcub_dais_151

Kosanović D, Živojinović J, Obradović N, Pavlović VP, Pavlović VB, Peleš A, Ristić MM. The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3. 2013;.
https://hdl.handle.net/21.15107/rcub_dais_151 .

Kosanović, Darko, Živojinović, Jelena, Obradović, Nina, Pavlović, Vera P., Pavlović, Vladimir B., Peleš, Adriana, Ristić, Momčilo M., "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3" (2013),
https://hdl.handle.net/21.15107/rcub_dais_151 .

TY  - CONF
AU  - Živojinović, Jelena
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Peleš, Adriana
AU  - Labus, Nebojša
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir B.
AU  - Mitrić, Miodrag
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/414
AB  - Strontium-titanate powder was mechanically activated in a planetary ball mill for 0, 5, 10, 30, 60, 90 and 120 minutes. Non-isothermal sintering of non-activated and activated SrTiO3 powder samples in the temperature interval from 50 to 1300 0C with three different heating rates (10, 15 and 20 0C/min) was investigated on a dilatometer. X-ray powder diffraction and scanning electron microscopy (SEM) were used to determine the phase composition, lattice microstrains and microstructure morphology of the samples. XRD results showed the presence of new phases: SrCO3 (strontuim-carbonate) and TiO2 (anatase) after 30 minutes of  mechanical activation.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Dilatometric Analysis of Mechanically Activated SrTiO3 Powder
SP  - 38
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_dais_414
ER  - 

@conference{
author = "Živojinović, Jelena and Kosanović, Darko and Obradović, Nina and Peleš, Adriana and Labus, Nebojša and Filipović, Suzana and Pavlović, Vladimir B. and Mitrić, Miodrag and Ristić, Momčilo M.",
year = "2013",
abstract = "Strontium-titanate powder was mechanically activated in a planetary ball mill for 0, 5, 10, 30, 60, 90 and 120 minutes. Non-isothermal sintering of non-activated and activated SrTiO3 powder samples in the temperature interval from 50 to 1300 0C with three different heating rates (10, 15 and 20 0C/min) was investigated on a dilatometer. X-ray powder diffraction and scanning electron microscopy (SEM) were used to determine the phase composition, lattice microstrains and microstructure morphology of the samples. XRD results showed the presence of new phases: SrCO3 (strontuim-carbonate) and TiO2 (anatase) after 30 minutes of  mechanical activation.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Dilatometric Analysis of Mechanically Activated SrTiO3 Powder",
pages = "38-38",
url = "https://hdl.handle.net/21.15107/rcub_dais_414"
}

Živojinović, J., Kosanović, D., Obradović, N., Peleš, A., Labus, N., Filipović, S., Pavlović, V. B., Mitrić, M.,& Ristić, M. M.. (2013). Dilatometric Analysis of Mechanically Activated SrTiO3 Powder. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 38-38.
https://hdl.handle.net/21.15107/rcub_dais_414

Živojinović J, Kosanović D, Obradović N, Peleš A, Labus N, Filipović S, Pavlović VB, Mitrić M, Ristić MM. Dilatometric Analysis of Mechanically Activated SrTiO3 Powder. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:38-38.
https://hdl.handle.net/21.15107/rcub_dais_414 .

Živojinović, Jelena, Kosanović, Darko, Obradović, Nina, Peleš, Adriana, Labus, Nebojša, Filipović, Suzana, Pavlović, Vladimir B., Mitrić, Miodrag, Ristić, Momčilo M., "Dilatometric Analysis of Mechanically Activated SrTiO3 Powder" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):38-38,
https://hdl.handle.net/21.15107/rcub_dais_414 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/418
AB  - In this article the influence of ball miling process on structure of MgO-TiO2 system was investigated. The mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 minutes. The influence of mechanical activation on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 minutes of activation and increased after that, reaching its minimun value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Structural characterization of mechanically activated MgO-TiO2 system
SP  - 40
EP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_dais_418
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Šćepanović, M. and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2013",
abstract = "In this article the influence of ball miling process on structure of MgO-TiO2 system was investigated. The mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 minutes. The influence of mechanical activation on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 minutes of activation and increased after that, reaching its minimun value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Structural characterization of mechanically activated MgO-TiO2 system",
pages = "40-41",
url = "https://hdl.handle.net/21.15107/rcub_dais_418"
}

Filipović, S., Obradović, N., Šćepanović, M., Pavlović, V. B.,& Ristić, M. M.. (2013). Structural characterization of mechanically activated MgO-TiO2 system. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 40-41.
https://hdl.handle.net/21.15107/rcub_dais_418

Filipović S, Obradović N, Šćepanović M, Pavlović VB, Ristić MM. Structural characterization of mechanically activated MgO-TiO2 system. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:40-41.
https://hdl.handle.net/21.15107/rcub_dais_418 .

Filipović, Suzana, Obradović, Nina, Šćepanović, M., Pavlović, Vladimir B., Ristić, Momčilo M., "Structural characterization of mechanically activated MgO-TiO2 system" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):40-41,
https://hdl.handle.net/21.15107/rcub_dais_418 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Živojinović, Jelena
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/415
AB  - Ferroelectric ceramic barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using starting powders of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2-anatase). Non-activated and mechanically activated mixtures with high-energy planetary ball mill (0, 5, 10, 20, 80 and 120 minutes) were sintered at 1100, 1200, 1300 and 1400 °C for two hours in air. The maximum value of ceramic density is about 86.20% TG. X-ray diffraction analysis was used to obtain information on the phase composition, as well as determining the influence of mechanical activation on the half height width of the diffraction lines (111) BST isothermally sintered samples at 1400 °C during two hours. Defects and the beginning process of sintering on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent of the angle, Nyquist diagrams and influence the activation time dependence of XC = f (log ν)) are made of ceramics sintered at 1400 °C for two hours.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
SP  - 39
EP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_dais_415
ER  - 

@conference{
author = "Kosanović, Darko and Živojinović, Jelena and Obradović, Nina and Pavlović, Vera P. and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2013",
abstract = "Ferroelectric ceramic barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using starting powders of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2-anatase). Non-activated and mechanically activated mixtures with high-energy planetary ball mill (0, 5, 10, 20, 80 and 120 minutes) were sintered at 1100, 1200, 1300 and 1400 °C for two hours in air. The maximum value of ceramic density is about 86.20% TG. X-ray diffraction analysis was used to obtain information on the phase composition, as well as determining the influence of mechanical activation on the half height width of the diffraction lines (111) BST isothermally sintered samples at 1400 °C during two hours. Defects and the beginning process of sintering on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent of the angle, Nyquist diagrams and influence the activation time dependence of XC = f (log ν)) are made of ceramics sintered at 1400 °C for two hours.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics",
pages = "39-39",
url = "https://hdl.handle.net/21.15107/rcub_dais_415"
}

Kosanović, D., Živojinović, J., Obradović, N., Pavlović, V. P., Pavlović, V. B.,& Ristić, M. M.. (2013). The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 39-39.
https://hdl.handle.net/21.15107/rcub_dais_415

Kosanović D, Živojinović J, Obradović N, Pavlović VP, Pavlović VB, Ristić MM. The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:39-39.
https://hdl.handle.net/21.15107/rcub_dais_415 .

Kosanović, Darko, Živojinović, Jelena, Obradović, Nina, Pavlović, Vera P., Pavlović, Vladimir B., Ristić, Momčilo M., "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):39-39,
https://hdl.handle.net/21.15107/rcub_dais_415 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Kosanović, Darko
AU  - Balać, Igor
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/484
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 1100°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.
PB  - Springer US
T2  - Powder Metallurgy and Metal Ceramics
T1  - Influence of mechanical activation on electrical properties of barium–zinc–titanate ceramics sintered at 1100°C
SP  - 714
EP  - 718
VL  - 50
IS  - 11-12
DO  - 10.1007/s11106-012-9380-y
UR  - https://hdl.handle.net/21.15107/rcub_dais_484
ER  - 

@article{
author = "Obradović, Nina and Filipović, Suzana and Mitrić, Miodrag and Pavlović, Vladimir B. and Paunović, Vesna and Kosanović, Darko and Balać, Igor and Ristić, Momčilo M.",
year = "2012",
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 1100°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.",
publisher = "Springer US",
journal = "Powder Metallurgy and Metal Ceramics",
title = "Influence of mechanical activation on electrical properties of barium–zinc–titanate ceramics sintered at 1100°C",
pages = "714-718",
volume = "50",
number = "11-12",
doi = "10.1007/s11106-012-9380-y",
url = "https://hdl.handle.net/21.15107/rcub_dais_484"
}

Obradović, N., Filipović, S., Mitrić, M., Pavlović, V. B., Paunović, V., Kosanović, D., Balać, I.,& Ristić, M. M.. (2012). Influence of mechanical activation on electrical properties of barium–zinc–titanate ceramics sintered at 1100°C. in Powder Metallurgy and Metal Ceramics
Springer US., 50(11-12), 714-718.
https://doi.org/10.1007/s11106-012-9380-y
https://hdl.handle.net/21.15107/rcub_dais_484

Obradović N, Filipović S, Mitrić M, Pavlović VB, Paunović V, Kosanović D, Balać I, Ristić MM. Influence of mechanical activation on electrical properties of barium–zinc–titanate ceramics sintered at 1100°C. in Powder Metallurgy and Metal Ceramics. 2012;50(11-12):714-718.
doi:10.1007/s11106-012-9380-y
https://hdl.handle.net/21.15107/rcub_dais_484 .

Obradović, Nina, Filipović, Suzana, Mitrić, Miodrag, Pavlović, Vladimir B., Paunović, Vesna, Kosanović, Darko, Balać, Igor, Ristić, Momčilo M., "Influence of mechanical activation on electrical properties of barium–zinc–titanate ceramics sintered at 1100°C" in Powder Metallurgy and Metal Ceramics, 50, no. 11-12 (2012):714-718,
https://doi.org/10.1007/s11106-012-9380-y .,
https://hdl.handle.net/21.15107/rcub_dais_484 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Živojinović, Jelena
AU  - Maričić, Aleksa
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/195
AB  - In this article the influence of mechanical activation on sintering process of bariumstrontium-titanate ceramics has been investigated. Both non-activated and mixtures treated in a planetary ball mill for 5, 10, 20, 40, 80 and 120 minutes were sintered at 1100-1400°C for 2 hours in presence of air atmosphere. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100°C was too low to induce final sintering stage for this system. Electrical measurements have been conducted for the densest ceramics sintered at 1400°C for 2 hours. [Projekat Ministarstva nauke Republike Srbije, br. OI172057]
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - The influence of mechanical activation on sintering process of BaCO3-SrCO3-TiO2 system
SP  - 271
EP  - 280
VL  - 44
IS  - 3
DO  - 10.2298/SOS1203271K
UR  - https://hdl.handle.net/21.15107/rcub_dais_195
ER  - 

@article{
author = "Kosanović, Darko and Obradović, Nina and Živojinović, Jelena and Maričić, Aleksa and Pavlović, Vera P. and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2012",
abstract = "In this article the influence of mechanical activation on sintering process of bariumstrontium-titanate ceramics has been investigated. Both non-activated and mixtures treated in a planetary ball mill for 5, 10, 20, 40, 80 and 120 minutes were sintered at 1100-1400°C for 2 hours in presence of air atmosphere. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100°C was too low to induce final sintering stage for this system. Electrical measurements have been conducted for the densest ceramics sintered at 1400°C for 2 hours. [Projekat Ministarstva nauke Republike Srbije, br. OI172057]",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "The influence of mechanical activation on sintering process of BaCO3-SrCO3-TiO2 system",
pages = "271-280",
volume = "44",
number = "3",
doi = "10.2298/SOS1203271K",
url = "https://hdl.handle.net/21.15107/rcub_dais_195"
}

Kosanović, D., Obradović, N., Živojinović, J., Maričić, A., Pavlović, V. P., Pavlović, V. B.,& Ristić, M. M.. (2012). The influence of mechanical activation on sintering process of BaCO3-SrCO3-TiO2 system. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 44(3), 271-280.
https://doi.org/10.2298/SOS1203271K
https://hdl.handle.net/21.15107/rcub_dais_195

Kosanović D, Obradović N, Živojinović J, Maričić A, Pavlović VP, Pavlović VB, Ristić MM. The influence of mechanical activation on sintering process of BaCO3-SrCO3-TiO2 system. in Science of Sintering. 2012;44(3):271-280.
doi:10.2298/SOS1203271K
https://hdl.handle.net/21.15107/rcub_dais_195 .

Kosanović, Darko, Obradović, Nina, Živojinović, Jelena, Maričić, Aleksa, Pavlović, Vera P., Pavlović, Vladimir B., Ristić, Momčilo M., "The influence of mechanical activation on sintering process of BaCO3-SrCO3-TiO2 system" in Science of Sintering, 44, no. 3 (2012):271-280,
https://doi.org/10.2298/SOS1203271K .,
https://hdl.handle.net/21.15107/rcub_dais_195 .

TY  - JOUR
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Stojanović, J.
AU  - Miličić, Lj.
AU  - Radojević, Zagorka
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/193
AB  - Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Synthesis and sintering of high-temperature composites based on mechanically activated fly ash
SP  - 135
EP  - 146
VL  - 44
IS  - 2
DO  - 10.2298/SOS1202135T
UR  - https://hdl.handle.net/21.15107/rcub_dais_193
ER  - 

@article{
author = "Terzić, Anja and Pavlović, Ljubica and Obradović, Nina and Pavlović, Vladimir B. and Stojanović, J. and Miličić, Lj. and Radojević, Zagorka and Ristić, Momčilo M.",
year = "2012",
abstract = "Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side. [Projekat Ministarstva nauke Republike Srbije, br. 172057, 45008 and a project F-198, financed by Serbian Academy of Sciences and Arts]",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash",
pages = "135-146",
volume = "44",
number = "2",
doi = "10.2298/SOS1202135T",
url = "https://hdl.handle.net/21.15107/rcub_dais_193"
}

Terzić, A., Pavlović, L., Obradović, N., Pavlović, V. B., Stojanović, J., Miličić, Lj., Radojević, Z.,& Ristić, M. M.. (2012). Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 44(2), 135-146.
https://doi.org/10.2298/SOS1202135T
https://hdl.handle.net/21.15107/rcub_dais_193

Terzić A, Pavlović L, Obradović N, Pavlović VB, Stojanović J, Miličić L, Radojević Z, Ristić MM. Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering. 2012;44(2):135-146.
doi:10.2298/SOS1202135T
https://hdl.handle.net/21.15107/rcub_dais_193 .

Terzić, Anja, Pavlović, Ljubica, Obradović, Nina, Pavlović, Vladimir B., Stojanović, J., Miličić, Lj., Radojević, Zagorka, Ristić, Momčilo M., "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash" in Science of Sintering, 44, no. 2 (2012):135-146,
https://doi.org/10.2298/SOS1202135T .,
https://hdl.handle.net/21.15107/rcub_dais_193 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Nikolić, Maria Vesna
AU  - Nikolić, Nataša
AU  - Filipović, Suzana
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Nikolić, Pantelija M.
AU  - Đorđević, Antonije R.
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/192
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°C for 2h with a heating rate of 10°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.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Synthesis of barium-zinc-titanate ceramics
SP  - 65
EP  - 71
VL  - 44
IS  - 1
DO  - 10.2298/SOS1201065O
UR  - https://hdl.handle.net/21.15107/rcub_dais_192
ER  - 

@article{
author = "Obradović, Nina and Nikolić, Maria Vesna and Nikolić, Nataša and Filipović, Suzana and Mitrić, Miodrag and Pavlović, Vladimir B. and Nikolić, Pantelija M. and Đorđević, Antonije R. and Ristić, Momčilo M.",
year = "2012",
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°C for 2h with a heating rate of 10°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.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Synthesis of barium-zinc-titanate ceramics",
pages = "65-71",
volume = "44",
number = "1",
doi = "10.2298/SOS1201065O",
url = "https://hdl.handle.net/21.15107/rcub_dais_192"
}

Obradović, N., Nikolić, M. V., Nikolić, N., Filipović, S., Mitrić, M., Pavlović, V. B., Nikolić, P. M., Đorđević, A. R.,& Ristić, M. M.. (2012). Synthesis of barium-zinc-titanate ceramics. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 44(1), 65-71.
https://doi.org/10.2298/SOS1201065O
https://hdl.handle.net/21.15107/rcub_dais_192

Obradović N, Nikolić MV, Nikolić N, Filipović S, Mitrić M, Pavlović VB, Nikolić PM, Đorđević AR, Ristić MM. Synthesis of barium-zinc-titanate ceramics. in Science of Sintering. 2012;44(1):65-71.
doi:10.2298/SOS1201065O
https://hdl.handle.net/21.15107/rcub_dais_192 .

Obradović, Nina, Nikolić, Maria Vesna, Nikolić, Nataša, Filipović, Suzana, Mitrić, Miodrag, Pavlović, Vladimir B., Nikolić, Pantelija M., Đorđević, Antonije R., Ristić, Momčilo M., "Synthesis of barium-zinc-titanate ceramics" in Science of Sintering, 44, no. 1 (2012):65-71,
https://doi.org/10.2298/SOS1201065O .,
https://hdl.handle.net/21.15107/rcub_dais_192 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Živojinović, Jelena
AU  - Filipović, Suzana
AU  - Maričić, Aleksa
AU  - Pavlović, Vladimir B.
AU  - Tang, Y.
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/191
AB  - Barium-Strontium-Titanate Ba0.77Sr0.23TiO3 was prepared from starting materials BaCO3, SrCO3 and TiO2 through solid-state reactions. Mixtures of these oxides are mechanically activated in a high-energy planetary ball mill at different time intervals from 0 to 120 minutes. In order to obtain information on phase composition, crystal structure was determent by X-ray diffraction. It was observed that after 80 minutes in process synthesis Ba0.77Sr0.23TiO3 started Thermal analyzes were performed in order to determine the characteristic temperatures of the processes that occur in the solid phase. Particle size distribution, together with electron microscopy scanning has given us very useful information about the morphology of the powder.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Mechanical-chemical synthesis Ba0.77Sr0.23TiO3
SP  - 47
EP  - 55
VL  - 44
IS  - 1
DO  - 10.2298/SOS1201047K
UR  - https://hdl.handle.net/21.15107/rcub_dais_191
ER  - 

@article{
author = "Kosanović, Darko and Obradović, Nina and Živojinović, Jelena and Filipović, Suzana and Maričić, Aleksa and Pavlović, Vladimir B. and Tang, Y. and Ristić, Momčilo M.",
year = "2012",
abstract = "Barium-Strontium-Titanate Ba0.77Sr0.23TiO3 was prepared from starting materials BaCO3, SrCO3 and TiO2 through solid-state reactions. Mixtures of these oxides are mechanically activated in a high-energy planetary ball mill at different time intervals from 0 to 120 minutes. In order to obtain information on phase composition, crystal structure was determent by X-ray diffraction. It was observed that after 80 minutes in process synthesis Ba0.77Sr0.23TiO3 started Thermal analyzes were performed in order to determine the characteristic temperatures of the processes that occur in the solid phase. Particle size distribution, together with electron microscopy scanning has given us very useful information about the morphology of the powder.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Mechanical-chemical synthesis Ba0.77Sr0.23TiO3",
pages = "47-55",
volume = "44",
number = "1",
doi = "10.2298/SOS1201047K",
url = "https://hdl.handle.net/21.15107/rcub_dais_191"
}

Kosanović, D., Obradović, N., Živojinović, J., Filipović, S., Maričić, A., Pavlović, V. B., Tang, Y.,& Ristić, M. M.. (2012). Mechanical-chemical synthesis Ba0.77Sr0.23TiO3. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 44(1), 47-55.
https://doi.org/10.2298/SOS1201047K
https://hdl.handle.net/21.15107/rcub_dais_191

Kosanović D, Obradović N, Živojinović J, Filipović S, Maričić A, Pavlović VB, Tang Y, Ristić MM. Mechanical-chemical synthesis Ba0.77Sr0.23TiO3. in Science of Sintering. 2012;44(1):47-55.
doi:10.2298/SOS1201047K
https://hdl.handle.net/21.15107/rcub_dais_191 .

Kosanović, Darko, Obradović, Nina, Živojinović, Jelena, Filipović, Suzana, Maričić, Aleksa, Pavlović, Vladimir B., Tang, Y., Ristić, Momčilo M., "Mechanical-chemical synthesis Ba0.77Sr0.23TiO3" in Science of Sintering, 44, no. 1 (2012):47-55,
https://doi.org/10.2298/SOS1201047K .,
https://hdl.handle.net/21.15107/rcub_dais_191 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/442
AB  - In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Structural characterization and electrical properties of sintered magnesium-titanate ceramics
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_dais_442
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Šćepanović, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2012",
abstract = "In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Structural characterization and electrical properties of sintered magnesium-titanate ceramics",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_dais_442"
}

Filipović, S., Obradović, N., Krstić, J., Šćepanović, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2012). Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 80-80.
https://hdl.handle.net/21.15107/rcub_dais_442

Filipović S, Obradović N, Krstić J, Šćepanović M, Pavlović VB, Paunović V, Ristić MM. Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:80-80.
https://hdl.handle.net/21.15107/rcub_dais_442 .

Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Šćepanović, M., Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Structural characterization and electrical properties of sintered magnesium-titanate ceramics" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):80-80,
https://hdl.handle.net/21.15107/rcub_dais_442 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/135
AB  - Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012
T1  - The Influence of Mechanical Activation on Sintering Process of BaCO3 -SrCO3 -TiO2 System
UR  - https://hdl.handle.net/21.15107/rcub_dais_135
ER  - 

@conference{
author = "Kosanović, Darko and Obradović, Nina and Mitrić, Miodrag and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2012",
abstract = "Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012",
title = "The Influence of Mechanical Activation on Sintering Process of BaCO3 -SrCO3 -TiO2 System",
url = "https://hdl.handle.net/21.15107/rcub_dais_135"
}

Kosanović, D., Obradović, N., Mitrić, M., Pavlović, V. B.,& Ristić, M. M.. (2012). The Influence of Mechanical Activation on Sintering Process of BaCO3 -SrCO3 -TiO2 System. .
https://hdl.handle.net/21.15107/rcub_dais_135

Kosanović D, Obradović N, Mitrić M, Pavlović VB, Ristić MM. The Influence of Mechanical Activation on Sintering Process of BaCO3 -SrCO3 -TiO2 System. 2012;.
https://hdl.handle.net/21.15107/rcub_dais_135 .

Kosanović, Darko, Obradović, Nina, Mitrić, Miodrag, Pavlović, Vladimir B., Ristić, Momčilo M., "The Influence of Mechanical Activation on Sintering Process of BaCO3 -SrCO3 -TiO2 System" (2012),
https://hdl.handle.net/21.15107/rcub_dais_135 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Obradović, Nina
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/506
AB  - In this article the influence of mechanical activation on sintering process of barium-strontiumtitanate ceramics has been investigated. Both non-activated and mixtures treated in planetary ball mill for 5, 10, 20, 40, 80 and 120 minutes were sintered at 1100-1400 °C for 2 hours in air atmosphere. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100 °C was to low to induce final sintering stage for the system. Electrical measurements have been conducted for the densest ceramics sintered at 1400 °C for 2 hours.
PB  - Belgrade : Serbian Ceramic Society
C3  - The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
T1  - The Influence of Mechanical Activation on Sintering Process of BaCO3-SrCO3-TiO2 System
SP  - 24
EP  - 24
UR  - https://hdl.handle.net/21.15107/rcub_dais_506
ER  - 

@conference{
author = "Kosanović, Darko and Obradović, Nina and Mitrić, Miodrag and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2012",
abstract = "In this article the influence of mechanical activation on sintering process of barium-strontiumtitanate ceramics has been investigated. Both non-activated and mixtures treated in planetary ball mill for 5, 10, 20, 40, 80 and 120 minutes were sintered at 1100-1400 °C for 2 hours in air atmosphere. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100 °C was to low to induce final sintering stage for the system. Electrical measurements have been conducted for the densest ceramics sintered at 1400 °C for 2 hours.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts",
title = "The Influence of Mechanical Activation on Sintering Process of BaCO3-SrCO3-TiO2 System",
pages = "24-24",
url = "https://hdl.handle.net/21.15107/rcub_dais_506"
}

Kosanović, D., Obradović, N., Mitrić, M., Pavlović, V. B.,& Ristić, M. M.. (2012). The Influence of Mechanical Activation on Sintering Process of BaCO3-SrCO3-TiO2 System. in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
Belgrade : Serbian Ceramic Society., 24-24.
https://hdl.handle.net/21.15107/rcub_dais_506

Kosanović D, Obradović N, Mitrić M, Pavlović VB, Ristić MM. The Influence of Mechanical Activation on Sintering Process of BaCO3-SrCO3-TiO2 System. in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts. 2012;:24-24.
https://hdl.handle.net/21.15107/rcub_dais_506 .

Kosanović, Darko, Obradović, Nina, Mitrić, Miodrag, Pavlović, Vladimir B., Ristić, Momčilo M., "The Influence of Mechanical Activation on Sintering Process of BaCO3-SrCO3-TiO2 System" in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts (2012):24-24,
https://hdl.handle.net/21.15107/rcub_dais_506 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir B.
AU  - Maričić, Aleksa
AU  - Mitrović, Nebojša
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/201
AB  - In this article the influence of mechanical activation on sintering process of magnesium-titanate and barium-zinc-titanate ceramics has been investigated. Both nonactivated and mixtures treated in planetary ball mill for 80 minutes were sintered at 1100ºC and 1300ºC. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100ºC was to low to induce final sintering stage for both systems. Moreover, we concluded that barium-zinc-titanate ceramics exhibited better sinterability than magnesium-titanate ceramics.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Sintering of mechanically activated magnesium-titanate and barium-zinc-titanate ceramics
SP  - 145
EP  - 151
VL  - 43
IS  - 2
DO  - 10.2298/SOS1102145O
UR  - https://hdl.handle.net/21.15107/rcub_dais_201
ER  - 

@article{
author = "Obradović, Nina and Filipović, Suzana and Pavlović, Vladimir B. and Maričić, Aleksa and Mitrović, Nebojša and Ristić, Momčilo M.",
year = "2011",
abstract = "In this article the influence of mechanical activation on sintering process of magnesium-titanate and barium-zinc-titanate ceramics has been investigated. Both nonactivated and mixtures treated in planetary ball mill for 80 minutes were sintered at 1100ºC and 1300ºC. The influence of mechanical activation on phase composition and crystal structure has been analyzed by XRD, while the effect of activation and sintering process on microstructure was investigated by scanning electron microscopy. It has been established that temperature of 1100ºC was to low to induce final sintering stage for both systems. Moreover, we concluded that barium-zinc-titanate ceramics exhibited better sinterability than magnesium-titanate ceramics.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Sintering of mechanically activated magnesium-titanate and barium-zinc-titanate ceramics",
pages = "145-151",
volume = "43",
number = "2",
doi = "10.2298/SOS1102145O",
url = "https://hdl.handle.net/21.15107/rcub_dais_201"
}

Obradović, N., Filipović, S., Pavlović, V. B., Maričić, A., Mitrović, N.,& Ristić, M. M.. (2011). Sintering of mechanically activated magnesium-titanate and barium-zinc-titanate ceramics. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 43(2), 145-151.
https://doi.org/10.2298/SOS1102145O
https://hdl.handle.net/21.15107/rcub_dais_201

Obradović N, Filipović S, Pavlović VB, Maričić A, Mitrović N, Ristić MM. Sintering of mechanically activated magnesium-titanate and barium-zinc-titanate ceramics. in Science of Sintering. 2011;43(2):145-151.
doi:10.2298/SOS1102145O
https://hdl.handle.net/21.15107/rcub_dais_201 .

Obradović, Nina, Filipović, Suzana, Pavlović, Vladimir B., Maričić, Aleksa, Mitrović, Nebojša, Ristić, Momčilo M., "Sintering of mechanically activated magnesium-titanate and barium-zinc-titanate ceramics" in Science of Sintering, 43, no. 2 (2011):145-151,
https://doi.org/10.2298/SOS1102145O .,
https://hdl.handle.net/21.15107/rcub_dais_201 .

TY  - JOUR
AU  - Kosanović, Darko
AU  - Maričić, Aleksa
AU  - Mitrović, Nebojša
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/200
AB  - Development of materials with desirable properties essentially depends on realization of interdependence: natural science ⇔ technical sciences. Taking this into account, in order to develop of new advanced materials it is essential to determine principles that characterize this interdependency. Therefore, in this article the principles of fundamental research and the importance of obtained results are considered and implemented in the field of technical realizations.
AB  - Dobijanje materijala zadatih svojstava uslovljen je suštinski ostvarivanjem međuzavisnosti: PRIRODNE NAUKE ⇔ TEHNIČKE NAUKE. S obzirom na to, kada se radi o dobijanju novih materijala, neophodno je utvrditi zakonitosti koje karakterišu ovu međuzavisnost. Saglasno ovome u ovoj publikaciji razmatrani su principi fundamentalnih istraživanja i značaj dobijenih rezultata za primenu u oblasti tehničkih realizacija.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Interdependence of fundamental and applied research in material science
SP  - 119
EP  - 126
VL  - 43
IS  - 2
DO  - 10.2298/SOS1102119K
UR  - https://hdl.handle.net/21.15107/rcub_dais_200
ER  - 

@article{
author = "Kosanović, Darko and Maričić, Aleksa and Mitrović, Nebojša and Ristić, Momčilo M.",
year = "2011",
abstract = "Development of materials with desirable properties essentially depends on realization of interdependence: natural science ⇔ technical sciences. Taking this into account, in order to develop of new advanced materials it is essential to determine principles that characterize this interdependency. Therefore, in this article the principles of fundamental research and the importance of obtained results are considered and implemented in the field of technical realizations., Dobijanje materijala zadatih svojstava uslovljen je suštinski ostvarivanjem međuzavisnosti: PRIRODNE NAUKE ⇔ TEHNIČKE NAUKE. S obzirom na to, kada se radi o dobijanju novih materijala, neophodno je utvrditi zakonitosti koje karakterišu ovu međuzavisnost. Saglasno ovome u ovoj publikaciji razmatrani su principi fundamentalnih istraživanja i značaj dobijenih rezultata za primenu u oblasti tehničkih realizacija.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Interdependence of fundamental and applied research in material science",
pages = "119-126",
volume = "43",
number = "2",
doi = "10.2298/SOS1102119K",
url = "https://hdl.handle.net/21.15107/rcub_dais_200"
}

Kosanović, D., Maričić, A., Mitrović, N.,& Ristić, M. M.. (2011). Interdependence of fundamental and applied research in material science. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 43(2), 119-126.
https://doi.org/10.2298/SOS1102119K
https://hdl.handle.net/21.15107/rcub_dais_200

Kosanović D, Maričić A, Mitrović N, Ristić MM. Interdependence of fundamental and applied research in material science. in Science of Sintering. 2011;43(2):119-126.
doi:10.2298/SOS1102119K
https://hdl.handle.net/21.15107/rcub_dais_200 .

Kosanović, Darko, Maričić, Aleksa, Mitrović, Nebojša, Ristić, Momčilo M., "Interdependence of fundamental and applied research in material science" in Science of Sintering, 43, no. 2 (2011):119-126,
https://doi.org/10.2298/SOS1102119K .,
https://hdl.handle.net/21.15107/rcub_dais_200 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Mitrić, Miodrag
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/735
AB  - The aim of this work was an investigation of structural and electrical properties of sintered barium-zinc-titanate ceramics. Mixtures of BaCO3, ZnO and TiO2 were mechanically activated in a planetary ball mill up to 80 minutes and sintered isothermally in air for 120 minutes at 1300°C. The phase composition in the BaCO3-ZnO-TiO2 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.
PACS numbers: 81.20.Wk, 81.20.Ev, 61.05.C-, 84.37.+q
PB  - Warsaw : Institute of Physics, Polish Academy of Science
T2  - Acta Physica Polonica A
T1  - Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics
SP  - 322
EP  - 325
UR  - https://hdl.handle.net/21.15107/rcub_dais_735
ER  - 

@article{
author = "Obradović, Nina and Filipović, Suzana and Pavlović, Vladimir B. and Paunović, Vesna and Mitrić, Miodrag and Ristić, Momčilo M.",
year = "2011",
abstract = "The aim of this work was an investigation of structural and electrical properties of sintered barium-zinc-titanate ceramics. Mixtures of BaCO3, ZnO and TiO2 were mechanically activated in a planetary ball mill up to 80 minutes and sintered isothermally in air for 120 minutes at 1300°C. The phase composition in the BaCO3-ZnO-TiO2 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.
PACS numbers: 81.20.Wk, 81.20.Ev, 61.05.C-, 84.37.+q",
publisher = "Warsaw : Institute of Physics, Polish Academy of Science",
journal = "Acta Physica Polonica A",
title = "Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics",
pages = "322-325",
url = "https://hdl.handle.net/21.15107/rcub_dais_735"
}

Obradović, N., Filipović, S., Pavlović, V. B., Paunović, V., Mitrić, M.,& Ristić, M. M.. (2011). Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics. in Acta Physica Polonica A
Warsaw : Institute of Physics, Polish Academy of Science., 322-325.
https://hdl.handle.net/21.15107/rcub_dais_735

Obradović N, Filipović S, Pavlović VB, Paunović V, Mitrić M, Ristić MM. Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics. in Acta Physica Polonica A. 2011;:322-325.
https://hdl.handle.net/21.15107/rcub_dais_735 .

Obradović, Nina, Filipović, Suzana, Pavlović, Vladimir B., Paunović, Vesna, Mitrić, Miodrag, Ristić, Momčilo M., "Structural and Electrical Properties of Sintered Barium-Zinc-Titanate Ceramics" in Acta Physica Polonica A (2011):322-325,
https://hdl.handle.net/21.15107/rcub_dais_735 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Kosanović, Darko
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Maričić, Aleksa
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/629
AB  - Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results are obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 4.4 m2/g. The influence of mechanical activation on lattice vibrational spectra was examined by Raman spectroscopy at room temperatures. The differential thermal analysis has been performed in order to investigate thermal behavior of the mixtures, indicating at several endothermal peaks in range of RT to 1100oC. SEM gave information about changes in microstructures, showing the clear decrease in particle size.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Structural characterization of mechanically activated MgO-TiO2 system
SP  - 101
EP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_dais_629
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Kosanović, Darko and Šćepanović, M. and Pavlović, Vladimir B. and Maričić, Aleksa and Ristić, Momčilo M.",
year = "2011",
abstract = "Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results are obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 4.4 m2/g. The influence of mechanical activation on lattice vibrational spectra was examined by Raman spectroscopy at room temperatures. The differential thermal analysis has been performed in order to investigate thermal behavior of the mixtures, indicating at several endothermal peaks in range of RT to 1100oC. SEM gave information about changes in microstructures, showing the clear decrease in particle size.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Structural characterization of mechanically activated MgO-TiO2 system",
pages = "101-101",
url = "https://hdl.handle.net/21.15107/rcub_dais_629"
}

Filipović, S., Obradović, N., Krstić, J., Kosanović, D., Šćepanović, M., Pavlović, V. B., Maričić, A.,& Ristić, M. M.. (2011). Structural characterization of mechanically activated MgO-TiO2 system. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 101-101.
https://hdl.handle.net/21.15107/rcub_dais_629

Filipović S, Obradović N, Krstić J, Kosanović D, Šćepanović M, Pavlović VB, Maričić A, Ristić MM. Structural characterization of mechanically activated MgO-TiO2 system. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:101-101.
https://hdl.handle.net/21.15107/rcub_dais_629 .

Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Kosanović, Darko, Šćepanović, M., Pavlović, Vladimir B., Maričić, Aleksa, Ristić, Momčilo M., "Structural characterization of mechanically activated MgO-TiO2 system" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):101-101,
https://hdl.handle.net/21.15107/rcub_dais_629 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Mitrić, Miodrag
AU  - Marković, Smilja
AU  - Maričić, Aleksa
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/630
AB  - Ba0.8Sr0.2TiO3 was prepared from the starting materials BaCO3, SrCO3 and TiO2 through solid state reaction. Mixtures of these oxides were mechanically activated using a high-energy ball mill at different time intervals from 0 to 120 minutes. X-ray diffraction was employed in order to determine the crystal structure and gave information about composition of phase variation. It was observed that after 40 minutes early synthesis of Ba0.8Sr0.2TiO3 phase occurred. Particle size distribution along with scanning electron microscopy gave very useful information about powder morphology.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Mechanochemical synthesis of Ba0.8Sr0.2TiO3
SP  - 134
EP  - 134
UR  - https://hdl.handle.net/21.15107/rcub_dais_630
ER  - 

@conference{
author = "Kosanović, Darko and Filipović, Suzana and Obradović, Nina and Mitrić, Miodrag and Marković, Smilja and Maričić, Aleksa and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2011",
abstract = "Ba0.8Sr0.2TiO3 was prepared from the starting materials BaCO3, SrCO3 and TiO2 through solid state reaction. Mixtures of these oxides were mechanically activated using a high-energy ball mill at different time intervals from 0 to 120 minutes. X-ray diffraction was employed in order to determine the crystal structure and gave information about composition of phase variation. It was observed that after 40 minutes early synthesis of Ba0.8Sr0.2TiO3 phase occurred. Particle size distribution along with scanning electron microscopy gave very useful information about powder morphology.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Mechanochemical synthesis of Ba0.8Sr0.2TiO3",
pages = "134-134",
url = "https://hdl.handle.net/21.15107/rcub_dais_630"
}

Kosanović, D., Filipović, S., Obradović, N., Mitrić, M., Marković, S., Maričić, A., Pavlović, V. B.,& Ristić, M. M.. (2011). Mechanochemical synthesis of Ba0.8Sr0.2TiO3. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 134-134.
https://hdl.handle.net/21.15107/rcub_dais_630

Kosanović D, Filipović S, Obradović N, Mitrić M, Marković S, Maričić A, Pavlović VB, Ristić MM. Mechanochemical synthesis of Ba0.8Sr0.2TiO3. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:134-134.
https://hdl.handle.net/21.15107/rcub_dais_630 .

Kosanović, Darko, Filipović, Suzana, Obradović, Nina, Mitrić, Miodrag, Marković, Smilja, Maričić, Aleksa, Pavlović, Vladimir B., Ristić, Momčilo M., "Mechanochemical synthesis of Ba0.8Sr0.2TiO3" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):134-134,
https://hdl.handle.net/21.15107/rcub_dais_630 .

TY  - CONF
AU  - Kosanović, Darko
AU  - Filipović, Suzana
AU  - Mitrić, Miodrag
AU  - Marković, Smilja
AU  - Obradović, Nina
AU  - Maričić, Aleksa
AU  - Živojinović, Jelena
AU  - Ristić, Momčilo M.
AU  - Dukić, Milan
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/631
AB  - Ba0.8Sr0.2TiO3 was prepared from the starting materials BaCO3, SrCO3 and TiO2 through solid state reaction. Mixture of these oxides was mechanically activated using a high-energy ball mill at different time intervals from 0 to 120 minutes. The crystal structure was determined by X-ray diffraction to obtain information about the composition of phase variation. It was observed that after 40 minutes occurred early synthesis Ba0.8Sr0.2TiO3. Particle size distribution along with scanning electron microscopy gave very useful information about powder morphology.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Mechanochemical synthesis Ba0.8Sr0.2TiO3
SP  - 13
EP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_dais_631
ER  - 

@conference{
author = "Kosanović, Darko and Filipović, Suzana and Mitrić, Miodrag and Marković, Smilja and Obradović, Nina and Maričić, Aleksa and Živojinović, Jelena and Ristić, Momčilo M. and Dukić, Milan",
year = "2011",
abstract = "Ba0.8Sr0.2TiO3 was prepared from the starting materials BaCO3, SrCO3 and TiO2 through solid state reaction. Mixture of these oxides was mechanically activated using a high-energy ball mill at different time intervals from 0 to 120 minutes. The crystal structure was determined by X-ray diffraction to obtain information about the composition of phase variation. It was observed that after 40 minutes occurred early synthesis Ba0.8Sr0.2TiO3. Particle size distribution along with scanning electron microscopy gave very useful information about powder morphology.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Mechanochemical synthesis Ba0.8Sr0.2TiO3",
pages = "13-13",
url = "https://hdl.handle.net/21.15107/rcub_dais_631"
}

Kosanović, D., Filipović, S., Mitrić, M., Marković, S., Obradović, N., Maričić, A., Živojinović, J., Ristić, M. M.,& Dukić, M.. (2011). Mechanochemical synthesis Ba0.8Sr0.2TiO3. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 13-13.
https://hdl.handle.net/21.15107/rcub_dais_631

Kosanović D, Filipović S, Mitrić M, Marković S, Obradović N, Maričić A, Živojinović J, Ristić MM, Dukić M. Mechanochemical synthesis Ba0.8Sr0.2TiO3. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:13-13.
https://hdl.handle.net/21.15107/rcub_dais_631 .

Kosanović, Darko, Filipović, Suzana, Mitrić, Miodrag, Marković, Smilja, Obradović, Nina, Maričić, Aleksa, Živojinović, Jelena, Ristić, Momčilo M., Dukić, Milan, "Mechanochemical synthesis Ba0.8Sr0.2TiO3" in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):13-13,
https://hdl.handle.net/21.15107/rcub_dais_631 .

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Marković, Smilja
AU  - Mitrić, Miodrag
AU  - Ristić, Momčilo M.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/204
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 1100o-1400oC for 2h. The decrease in powder’s 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.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system
SP  - 143
EP  - 151
VL  - 42
IS  - 2
DO  - 10.2298/SOS100518002F
UR  - https://hdl.handle.net/21.15107/rcub_dais_204
ER  - 

@article{
author = "Filipović, Suzana and Obradović, Nina and Pavlović, Vladimir B. and Marković, Smilja and Mitrić, Miodrag and Ristić, Momčilo M.",
year = "2010",
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 1100o-1400oC for 2h. The decrease in powder’s 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.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system",
pages = "143-151",
volume = "42",
number = "2",
doi = "10.2298/SOS100518002F",
url = "https://hdl.handle.net/21.15107/rcub_dais_204"
}

Filipović, S., Obradović, N., Pavlović, V. B., Marković, S., Mitrić, M.,& Ristić, M. M.. (2010). Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 42(2), 143-151.
https://doi.org/10.2298/SOS100518002F
https://hdl.handle.net/21.15107/rcub_dais_204

Filipović S, Obradović N, Pavlović VB, Marković S, Mitrić M, Ristić MM. Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system. in Science of Sintering. 2010;42(2):143-151.
doi:10.2298/SOS100518002F
https://hdl.handle.net/21.15107/rcub_dais_204 .

Filipović, Suzana, Obradović, Nina, Pavlović, Vladimir B., Marković, Smilja, Mitrić, Miodrag, Ristić, Momčilo M., "Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system" in Science of Sintering, 42, no. 2 (2010):143-151,
https://doi.org/10.2298/SOS100518002F .,
https://hdl.handle.net/21.15107/rcub_dais_204 .

TY  - CONF
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Mitrić, Miodrag
AU  - Ristić, Momčilo M.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/245
AB  - Poster presented at the 12th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2010, Herceg Novi, Montenegro, September 6–10, 2010.
T1  - Structural and Electrical Properties of Barium-Zinc-Titanate Ceramics Sintered at 1300°C
UR  - https://hdl.handle.net/21.15107/rcub_dais_245
ER  - 

@conference{
author = "Obradović, Nina and Filipović, Suzana and Pavlović, Vladimir B. and Paunović, Vesna and Mitrić, Miodrag and Ristić, Momčilo M.",
year = "2010",
abstract = "Poster presented at the 12th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2010, Herceg Novi, Montenegro, September 6–10, 2010.",
title = "Structural and Electrical Properties of Barium-Zinc-Titanate Ceramics Sintered at 1300°C",
url = "https://hdl.handle.net/21.15107/rcub_dais_245"
}

Obradović, N., Filipović, S., Pavlović, V. B., Paunović, V., Mitrić, M.,& Ristić, M. M.. (2010). Structural and Electrical Properties of Barium-Zinc-Titanate Ceramics Sintered at 1300°C. .
https://hdl.handle.net/21.15107/rcub_dais_245

Obradović N, Filipović S, Pavlović VB, Paunović V, Mitrić M, Ristić MM. Structural and Electrical Properties of Barium-Zinc-Titanate Ceramics Sintered at 1300°C. 2010;.
https://hdl.handle.net/21.15107/rcub_dais_245 .

Obradović, Nina, Filipović, Suzana, Pavlović, Vladimir B., Paunović, Vesna, Mitrić, Miodrag, Ristić, Momčilo M., "Structural and Electrical Properties of Barium-Zinc-Titanate Ceramics Sintered at 1300°C" (2010),
https://hdl.handle.net/21.15107/rcub_dais_245 .