Paunović, Vesna

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  • Paunović, Vesna (6)
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Author's Bibliography

Magnetic materials, Curie-Weiss law and fractal correction

Mitić, Vojislav V.; Serpa, Kristina; Stajčić, Aleksandar; Khamoushi, Kouros; Paunović, Vesna; Aleksić, Sanja; Vlahović, Branislav

(Belgrade : Serbian Chemical Society, 2021)

TY  - CONF
AU  - Mitić, Vojislav V.
AU  - Serpa, Kristina
AU  - Stajčić, Aleksandar
AU  - Khamoushi, Kouros
AU  - Paunović, Vesna
AU  - Aleksić, Sanja
AU  - Vlahović, Branislav
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4898
AB  - Neodymium zinc titanate (NZT) is a very attractive perovskite due to its magnetic and
dielectric properties. Considering the microstructure influence NZT stability and
performance, it is of great importance to establish an approach for the analysis and prediction
of grain boundary phenomena. The fractal nature analysis has already proved to be valuable
for the reconstruction and prediction of ceramics intergranular electrical properties. However,
no researches were performed on the fractal analysis applied on magnetic materials. This
method could give an insight in magnetic properties change from the bulk to the grain
interface level. In this study, fractal analysis was applied for the Curie-Weiss law correction,
introducing fractal correction into magnetic materials for the first time. NZT powders used in
this research for fractal analysis were obtained after sintering at different temperatures in the
range from 1450°C to 1675°C.Connection between the microstructure fractal nature and the
resulting magnetic permeability has been established, enabling the application on different
magnetic materials in the future. This creates a foundation for new researches that will lead to
further miniaturization of satellite and mobile devices.
PB  - Belgrade : Serbian Chemical Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021
T1  - Magnetic materials, Curie-Weiss law and fractal correction
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_dais_11907
ER  - 
@conference{
author = "Mitić, Vojislav V. and Serpa, Kristina and Stajčić, Aleksandar and Khamoushi, Kouros and Paunović, Vesna and Aleksić, Sanja and Vlahović, Branislav",
year = "2021",
abstract = "Neodymium zinc titanate (NZT) is a very attractive perovskite due to its magnetic and
dielectric properties. Considering the microstructure influence NZT stability and
performance, it is of great importance to establish an approach for the analysis and prediction
of grain boundary phenomena. The fractal nature analysis has already proved to be valuable
for the reconstruction and prediction of ceramics intergranular electrical properties. However,
no researches were performed on the fractal analysis applied on magnetic materials. This
method could give an insight in magnetic properties change from the bulk to the grain
interface level. In this study, fractal analysis was applied for the Curie-Weiss law correction,
introducing fractal correction into magnetic materials for the first time. NZT powders used in
this research for fractal analysis were obtained after sintering at different temperatures in the
range from 1450°C to 1675°C.Connection between the microstructure fractal nature and the
resulting magnetic permeability has been established, enabling the application on different
magnetic materials in the future. This creates a foundation for new researches that will lead to
further miniaturization of satellite and mobile devices.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021",
title = "Magnetic materials, Curie-Weiss law and fractal correction",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_dais_11907"
}
Mitić, V. V., Serpa, K., Stajčić, A., Khamoushi, K., Paunović, V., Aleksić, S.,& Vlahović, B.. (2021). Magnetic materials, Curie-Weiss law and fractal correction. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021
Belgrade : Serbian Chemical Society., 46-46.
https://hdl.handle.net/21.15107/rcub_dais_11907
Mitić VV, Serpa K, Stajčić A, Khamoushi K, Paunović V, Aleksić S, Vlahović B. Magnetic materials, Curie-Weiss law and fractal correction. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021. 2021;:46-46.
https://hdl.handle.net/21.15107/rcub_dais_11907 .
Mitić, Vojislav V., Serpa, Kristina, Stajčić, Aleksandar, Khamoushi, Kouros, Paunović, Vesna, Aleksić, Sanja, Vlahović, Branislav, "Magnetic materials, Curie-Weiss law and fractal correction" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021 (2021):46-46,
https://hdl.handle.net/21.15107/rcub_dais_11907 .

Graph theory applied to microelectronics intergranular relations

Mitić, Vojislav V.; Lazović, Goran; Ranđelović, Branislav; Paunović, Vesna; Radović, Ivana; Stajčić, Aleksandar; Vlahović, Branislav

(Taylor & Francis Group, 2021)

TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Lazović, Goran
AU  - Ranđelović, Branislav
AU  - Paunović, Vesna
AU  - Radović, Ivana
AU  - Stajčić, Aleksandar
AU  - Vlahović, Branislav
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4837
AB  - The focus of this study is on the control of layers between grains by applying graph theory. We performed modification of BaTiO3 nanoparticles with Y2O3. The results of capacitance change on submicron level are the part of the measured values on the bulk samples. The original idea is to develop the new approach to use graph theory for networking of electronic parameters between the neighboring grains in order to compare the values measured on the sample, and to present them through the edges in graph between corresponding vertices. Capacitance change with DC bias was measured on bulk samples, and the modified nanoparticles showed stability up to 90 V. After using graph theory with the different number of neighboring grains and on different voltages, it has been shown that capacitance change can be successfully calculated on the layers between grains. Original calculations presented as 1D cases were performed, confirming graph application as a tool with which measured bulk results can be downsized to an appropriate intergranular level, opening the new perspectives in the area of miniaturization and micropackaging.
PB  - Taylor & Francis Group
T2  - Ferroelectrics
T1  - Graph theory applied to microelectronics intergranular relations
VL  - 570
IS  - 1
SP  - 145
EP  - 152
DO  - 10.1080/00150193.2020.1839265
ER  - 
@article{
author = "Mitić, Vojislav V. and Lazović, Goran and Ranđelović, Branislav and Paunović, Vesna and Radović, Ivana and Stajčić, Aleksandar and Vlahović, Branislav",
year = "2021",
abstract = "The focus of this study is on the control of layers between grains by applying graph theory. We performed modification of BaTiO3 nanoparticles with Y2O3. The results of capacitance change on submicron level are the part of the measured values on the bulk samples. The original idea is to develop the new approach to use graph theory for networking of electronic parameters between the neighboring grains in order to compare the values measured on the sample, and to present them through the edges in graph between corresponding vertices. Capacitance change with DC bias was measured on bulk samples, and the modified nanoparticles showed stability up to 90 V. After using graph theory with the different number of neighboring grains and on different voltages, it has been shown that capacitance change can be successfully calculated on the layers between grains. Original calculations presented as 1D cases were performed, confirming graph application as a tool with which measured bulk results can be downsized to an appropriate intergranular level, opening the new perspectives in the area of miniaturization and micropackaging.",
publisher = "Taylor & Francis Group",
journal = "Ferroelectrics",
title = "Graph theory applied to microelectronics intergranular relations",
volume = "570",
number = "1",
pages = "145-152",
doi = "10.1080/00150193.2020.1839265"
}
Mitić, V. V., Lazović, G., Ranđelović, B., Paunović, V., Radović, I., Stajčić, A.,& Vlahović, B.. (2021). Graph theory applied to microelectronics intergranular relations. in Ferroelectrics
Taylor & Francis Group., 570(1), 145-152.
https://doi.org/10.1080/00150193.2020.1839265
Mitić VV, Lazović G, Ranđelović B, Paunović V, Radović I, Stajčić A, Vlahović B. Graph theory applied to microelectronics intergranular relations. in Ferroelectrics. 2021;570(1):145-152.
doi:10.1080/00150193.2020.1839265 .
Mitić, Vojislav V., Lazović, Goran, Ranđelović, Branislav, Paunović, Vesna, Radović, Ivana, Stajčić, Aleksandar, Vlahović, Branislav, "Graph theory applied to microelectronics intergranular relations" in Ferroelectrics, 570, no. 1 (2021):145-152,
https://doi.org/10.1080/00150193.2020.1839265 . .
15
4
15

Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis

Filipović, Suzana; Anđelković, Ljubica; Jeremić, Dejan; Vulić, Predrag; Nikolić, Aleksandar S.; Marković, Smilja; Paunović, Vesna; Lević, Steva; Pavlović, Vladimir B.

(International Institute for the Science of Sintering, 2020)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Anđelković, Ljubica
AU  - Jeremić, Dejan
AU  - Vulić, Predrag
AU  - Nikolić, Aleksandar S.
AU  - Marković, Smilja
AU  - Paunović, Vesna
AU  - Lević, Steva
AU  - Pavlović, Vladimir B.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3709
AB  - Barium titanate (BaTiO3) attracts high scientific and technological attention due to good dielectric and electromechanical properties. Although BaTiO3 is one of the most frequently investigated ferroelectric materials, the need for finding new and/or improved synthesis methods of this material still exists. In this paper, a novel, mild synthesis route for producing tetragonal BaTiO3 from barium nitrate and Ti-oxalate precursor is presented. Morphology of the prepared and subsequently sintered BaTiO3 was determined by SEM. Particle size distribution of the as prepared powder was monitored by the laser diffraction. The phase composition, structure and lattice dynamics were investigated by XRD and Raman spectroscopy. Finally, dielectric parameters were determined in the temperature range from 30 to 180 degrees C, and within a variety of frequencies. Curie temperature was detected at 130 degrees C.
PB  - International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis
VL  - 52
SP  - 257
EP  - 268
DO  - 10.2298/SOS2003257F
ER  - 
@article{
author = "Filipović, Suzana and Anđelković, Ljubica and Jeremić, Dejan and Vulić, Predrag and Nikolić, Aleksandar S. and Marković, Smilja and Paunović, Vesna and Lević, Steva and Pavlović, Vladimir B.",
year = "2020",
abstract = "Barium titanate (BaTiO3) attracts high scientific and technological attention due to good dielectric and electromechanical properties. Although BaTiO3 is one of the most frequently investigated ferroelectric materials, the need for finding new and/or improved synthesis methods of this material still exists. In this paper, a novel, mild synthesis route for producing tetragonal BaTiO3 from barium nitrate and Ti-oxalate precursor is presented. Morphology of the prepared and subsequently sintered BaTiO3 was determined by SEM. Particle size distribution of the as prepared powder was monitored by the laser diffraction. The phase composition, structure and lattice dynamics were investigated by XRD and Raman spectroscopy. Finally, dielectric parameters were determined in the temperature range from 30 to 180 degrees C, and within a variety of frequencies. Curie temperature was detected at 130 degrees C.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis",
volume = "52",
pages = "257-268",
doi = "10.2298/SOS2003257F"
}
Filipović, S., Anđelković, L., Jeremić, D., Vulić, P., Nikolić, A. S., Marković, S., Paunović, V., Lević, S.,& Pavlović, V. B.. (2020). Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis. in Science of Sintering
International Institute for the Science of Sintering., 52, 257-268.
https://doi.org/10.2298/SOS2003257F
Filipović S, Anđelković L, Jeremić D, Vulić P, Nikolić AS, Marković S, Paunović V, Lević S, Pavlović VB. Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis. in Science of Sintering. 2020;52:257-268.
doi:10.2298/SOS2003257F .
Filipović, Suzana, Anđelković, Ljubica, Jeremić, Dejan, Vulić, Predrag, Nikolić, Aleksandar S., Marković, Smilja, Paunović, Vesna, Lević, Steva, Pavlović, Vladimir B., "Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis" in Science of Sintering, 52 (2020):257-268,
https://doi.org/10.2298/SOS2003257F . .
4
1
5

The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers

Mitić, Vojislav V.; Lazović, Goran; Lu, Chun-An; Paunović, Vesna; Radović, Ivana; Stajčić, Aleksandar; Vlahović, Branislav

(MDPI, 2020)

TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Lazović, Goran
AU  - Lu, Chun-An
AU  - Paunović, Vesna
AU  - Radović, Ivana
AU  - Stajčić, Aleksandar
AU  - Vlahović, Branislav
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3584
AB  - The BaTiO3 ceramics applications based on electronic properties have very high gradient
scientific and industrial-technological interests. Our scientific research has been based on nano BaTiO3
modified with Yttrium based organometallic salt (MOD-Y). The samples have been consolidated
at a sintering temperature of 1350  C. Within the study, the new frontiers for di erent electronic
properties between the layers of BaTiO3 grains have been introduced. The research target was
grain boundary investigations and the influence on dielectric properties. After scanning electron
microscopy and dielectric measurements, it has been established that modified BaTiO3 samples with
larger grains showed a better compact state that led to a higher dielectric constant value. DC bias
stability was also investigated and showed a connection between the grain size and capacitance
stability. Analyses of functions that could approximate experimental curves were successfully
employed. Practical application of fractal corrections was performed, based on surface ( s) and
pore size ( p) corrections, which resulted in obtainment of the relation between the capacitance and
Curie temperature. Successful introduction of fractal corrections for capacitance-Curie temperature
dependence for a set of experimental data is an important step towards further miniaturization of
intergranular capacitors.
PB  - MDPI
T2  - Applied Sciences
T1  - The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers
VL  - 10
SP  - 3485
DO  - 10.3390/app10103485
ER  - 
@article{
author = "Mitić, Vojislav V. and Lazović, Goran and Lu, Chun-An and Paunović, Vesna and Radović, Ivana and Stajčić, Aleksandar and Vlahović, Branislav",
year = "2020",
abstract = "The BaTiO3 ceramics applications based on electronic properties have very high gradient
scientific and industrial-technological interests. Our scientific research has been based on nano BaTiO3
modified with Yttrium based organometallic salt (MOD-Y). The samples have been consolidated
at a sintering temperature of 1350  C. Within the study, the new frontiers for di erent electronic
properties between the layers of BaTiO3 grains have been introduced. The research target was
grain boundary investigations and the influence on dielectric properties. After scanning electron
microscopy and dielectric measurements, it has been established that modified BaTiO3 samples with
larger grains showed a better compact state that led to a higher dielectric constant value. DC bias
stability was also investigated and showed a connection between the grain size and capacitance
stability. Analyses of functions that could approximate experimental curves were successfully
employed. Practical application of fractal corrections was performed, based on surface ( s) and
pore size ( p) corrections, which resulted in obtainment of the relation between the capacitance and
Curie temperature. Successful introduction of fractal corrections for capacitance-Curie temperature
dependence for a set of experimental data is an important step towards further miniaturization of
intergranular capacitors.",
publisher = "MDPI",
journal = "Applied Sciences",
title = "The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers",
volume = "10",
pages = "3485",
doi = "10.3390/app10103485"
}
Mitić, V. V., Lazović, G., Lu, C., Paunović, V., Radović, I., Stajčić, A.,& Vlahović, B.. (2020). The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers. in Applied Sciences
MDPI., 10, 3485.
https://doi.org/10.3390/app10103485
Mitić VV, Lazović G, Lu C, Paunović V, Radović I, Stajčić A, Vlahović B. The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers. in Applied Sciences. 2020;10:3485.
doi:10.3390/app10103485 .
Mitić, Vojislav V., Lazović, Goran, Lu, Chun-An, Paunović, Vesna, Radović, Ivana, Stajčić, Aleksandar, Vlahović, Branislav, "The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers" in Applied Sciences, 10 (2020):3485,
https://doi.org/10.3390/app10103485 . .
4
1
4

Structural characterization and electrical properties of sintered magnesium-titanate ceramics

Filipović, Suzana; Obradovic, Nina; Krstić, Jugoslav; Scepanovic, M.; Pavlović, Vladimir B.; Paunović, Vesna; Ristic, M. M.

(Elsevier, 2013)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradovic, Nina
AU  - Krstić, Jugoslav
AU  - Scepanovic, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristic, M. M.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1274
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 continuosly decreased up to 40 min of activation and increased after that, reaching its minimun value of 5.5 m(2)/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 (epsilon(r)), loss tangent (tg delta) and specific resistance (rho) 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
VL  - 555
SP  - 39
EP  - 44
DO  - 10.1016/j.jallcom.2012.12.040
ER  - 
@article{
author = "Filipović, Suzana and Obradovic, Nina and Krstić, Jugoslav and Scepanovic, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristic, M. 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 continuosly decreased up to 40 min of activation and increased after that, reaching its minimun value of 5.5 m(2)/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 (epsilon(r)), loss tangent (tg delta) and specific resistance (rho) 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",
volume = "555",
pages = "39-44",
doi = "10.1016/j.jallcom.2012.12.040"
}
Filipović, S., Obradovic, N., Krstić, J., Scepanovic, M., Pavlović, V. B., Paunović, V.,& Ristic, M. M.. (2013). Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in Journal of Alloys and Compounds
Elsevier., 555, 39-44.
https://doi.org/10.1016/j.jallcom.2012.12.040
Filipović S, Obradovic N, Krstić J, Scepanovic M, Pavlović VB, Paunović V, Ristic MM. Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in Journal of Alloys and Compounds. 2013;555:39-44.
doi:10.1016/j.jallcom.2012.12.040 .
Filipović, Suzana, Obradovic, Nina, Krstić, Jugoslav, Scepanovic, M., Pavlović, Vladimir B., Paunović, Vesna, Ristic, M. M., "Structural characterization and electrical properties of sintered magnesium-titanate ceramics" in Journal of Alloys and Compounds, 555 (2013):39-44,
https://doi.org/10.1016/j.jallcom.2012.12.040 . .
9
8
9

Structural characterization and electrical properties of sintered magnesium-titanate ceramics

Filipović, Suzana; Obradović, Nina; Krstić, Jugoslav; Šćepanović, M.; Pavlović, Vladimir B.; Paunović, Vesna; Ristić, Momčilo M.

(Belgrade : Materials Research Society of Serbia, 2012)

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  - http://dais.sanu.ac.rs/123456789/442
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2861
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 .