TY  - JOUR
AU  - Djordjević, Antonije
AU  - Olcan, Dragan
AU  - Obradović, Nina
AU  - Paunović, Vesna
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4433
AB  - Post-sintering of magnesium titanate ceramics by hot isostatic pressing (HIP) in an oxygen-free atmosphere significantly alters various electrical properties of the product. In particular, the sintered material becomes a semiconductor. The aims of this paper are: to extend our investigations of the electrical properties of this material by expanding the frequency range of measurements, to design interpolation formulas for the frequency dependence of the complex relative permittivity, and to propose HIP-sintered magnesium titanate as a material for thermistors that have a negative-temperature-coefficient resistance (NTCR), as well as for varistors.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing
EP  - 380
IS  - 4
SP  - 373
VL  - 49
DO  - 10.2298/SOS1704373D
ER  - 

@article{
author = "Djordjević, Antonije and Olcan, Dragan and Obradović, Nina and Paunović, Vesna and Filipović, Suzana and Pavlović, Vladimir",
year = "2017",
abstract = "Post-sintering of magnesium titanate ceramics by hot isostatic pressing (HIP) in an oxygen-free atmosphere significantly alters various electrical properties of the product. In particular, the sintered material becomes a semiconductor. The aims of this paper are: to extend our investigations of the electrical properties of this material by expanding the frequency range of measurements, to design interpolation formulas for the frequency dependence of the complex relative permittivity, and to propose HIP-sintered magnesium titanate as a material for thermistors that have a negative-temperature-coefficient resistance (NTCR), as well as for varistors.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing",
pages = "380-373",
number = "4",
volume = "49",
doi = "10.2298/SOS1704373D"
}

Djordjević, A., Olcan, D., Obradović, N., Paunović, V., Filipović, S.,& Pavlović, V.. (2017). Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(4), 373-380.
https://doi.org/10.2298/SOS1704373D

Djordjević A, Olcan D, Obradović N, Paunović V, Filipović S, Pavlović V. Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing. in Science of Sintering. 2017;49(4):373-380.
doi:10.2298/SOS1704373D .

Djordjević, Antonije, Olcan, Dragan, Obradović, Nina, Paunović, Vesna, Filipović, Suzana, Pavlović, Vladimir, "Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing" in Science of Sintering, 49, no. 4 (2017):373-380,
https://doi.org/10.2298/SOS1704373D . .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Kosanović, Darko
AU  - Mitrić, Miodrag
AU  - Paunović, Vesna
AU  - Pouchly, V.
AU  - Kachlik, Martin
AU  - Maca, Karel
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/763
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5709
AB  - Mechanically activated powders (0, 10, 40, 80 and 160 minutes) were formed by isostatic pressure 300 MPa to cylindrical green bodies (φ 12 mm). First set of samples was sintered at 1300°C for 30 min in air (heating rate 10 °C/min, cooling rate 5 oC/min). These samples were re-sintered at 1200 oC for 20 h in air (heating rate 20 °C/min, cooling rate 10 oC/min). Samples reached almost 90 % TD. The second set of samples was sintered at 1400 °C for 30 in air (heating rate 10 oC/min, cooling rate 5 °C/min). Relative densities increased up to 93 % TD. The samples of absence of open porosity (MTO-10, 40, 80 and 160) were post-sintered by pressure assisted technique Hot Isostatic Pressing (HIP) at 1200 °C for 2 h in argon atmosphere with pressure 200 MPa. The samples increased densities up to 96 % TD for sample MT-160. Electrical measurements were performed in the microwave field of frequency.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015
T1  - The effect of Hot Isostatic Pressing on the MT sample densities
EP  - 55
SP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_dais_763
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Pavlović, Vladimir B. and Kosanović, Darko and Mitrić, Miodrag and Paunović, Vesna and Pouchly, V. and Kachlik, Martin and Maca, Karel",
year = "2015",
abstract = "Mechanically activated powders (0, 10, 40, 80 and 160 minutes) were formed by isostatic pressure 300 MPa to cylindrical green bodies (φ 12 mm). First set of samples was sintered at 1300°C for 30 min in air (heating rate 10 °C/min, cooling rate 5 oC/min). These samples were re-sintered at 1200 oC for 20 h in air (heating rate 20 °C/min, cooling rate 10 oC/min). Samples reached almost 90 % TD. The second set of samples was sintered at 1400 °C for 30 in air (heating rate 10 oC/min, cooling rate 5 °C/min). Relative densities increased up to 93 % TD. The samples of absence of open porosity (MTO-10, 40, 80 and 160) were post-sintered by pressure assisted technique Hot Isostatic Pressing (HIP) at 1200 °C for 2 h in argon atmosphere with pressure 200 MPa. The samples increased densities up to 96 % TD for sample MT-160. Electrical measurements were performed in the microwave field of frequency.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015",
title = "The effect of Hot Isostatic Pressing on the MT sample densities",
pages = "55-55",
url = "https://hdl.handle.net/21.15107/rcub_dais_763"
}

Filipović, S., Obradović, N., Pavlović, V. B., Kosanović, D., Mitrić, M., Paunović, V., Pouchly, V., Kachlik, M.,& Maca, K.. (2015). The effect of Hot Isostatic Pressing on the MT sample densities. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015
Belgrade : Serbian Ceramic Society., 55-55.
https://hdl.handle.net/21.15107/rcub_dais_763

Filipović S, Obradović N, Pavlović VB, Kosanović D, Mitrić M, Paunović V, Pouchly V, Kachlik M, Maca K. The effect of Hot Isostatic Pressing on the MT sample densities. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015. 2015;:55-55.
https://hdl.handle.net/21.15107/rcub_dais_763 .

Filipović, Suzana, Obradović, Nina, Pavlović, Vladimir B., Kosanović, Darko, Mitrić, Miodrag, Paunović, Vesna, Pouchly, V., Kachlik, Martin, Maca, Karel, "The effect of Hot Isostatic Pressing on the MT sample densities" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015 (2015):55-55,
https://hdl.handle.net/21.15107/rcub_dais_763 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Kosanović, Darko
AU  - Mitrić, Miodrag
AU  - Paunović, Vesna
AU  - Pouchly, V.
AU  - Kachlik, Martin
AU  - Maca, Karel
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/638
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5704
AB  - Poster presented at the III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014
T1  - Properties of Magnesium Titanate Ceramic Obtained by Two Stage Sintering
UR  - https://hdl.handle.net/21.15107/rcub_dais_638
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Pavlović, Vladimir B. and Kosanović, Darko and Mitrić, Miodrag and Paunović, Vesna and Pouchly, V. and Kachlik, Martin and Maca, Karel",
year = "2014",
abstract = "Poster presented at the III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014",
title = "Properties of Magnesium Titanate Ceramic Obtained by Two Stage Sintering",
url = "https://hdl.handle.net/21.15107/rcub_dais_638"
}

Filipović, S., Obradović, N., Pavlović, V. B., Kosanović, D., Mitrić, M., Paunović, V., Pouchly, V., Kachlik, M.,& Maca, K.. (2014). Properties of Magnesium Titanate Ceramic Obtained by Two Stage Sintering. .
https://hdl.handle.net/21.15107/rcub_dais_638

Filipović S, Obradović N, Pavlović VB, Kosanović D, Mitrić M, Paunović V, Pouchly V, Kachlik M, Maca K. Properties of Magnesium Titanate Ceramic Obtained by Two Stage Sintering. 2014;.
https://hdl.handle.net/21.15107/rcub_dais_638 .

Filipović, Suzana, Obradović, Nina, Pavlović, Vladimir B., Kosanović, Darko, Mitrić, Miodrag, Paunović, Vesna, Pouchly, V., Kachlik, Martin, Maca, Karel, "Properties of Magnesium Titanate Ceramic Obtained by Two Stage Sintering" (2014),
https://hdl.handle.net/21.15107/rcub_dais_638 .

TY  - CONF
AU  - Mitić, Vojislav V.
AU  - Paunović, Vesna
AU  - Kocić, Ljubiša
AU  - Janković, S.
AU  - Pavlović, Vladimir B.
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/410
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5670
AB  - The intergrain ceramic structures are very complex and difficult to describe by using traditional analytical methods. In this study, in order to establish grain shapes of sintered ceramics, new approach on correlation between microstructure and properties of doped BaTiO3 -ceramics based on fractal geometry has been developed. BaTiO3 ceramics doped with CeO2, Bi2O3, Fe2O3, CaZrO3 Nb2O5, MnCO3 , La2O3, Er2O3, Yb2O3 and Ho2O3, were prepared using conventional solid state procedure and sintered at 1350°C. The sintered specimens microstructure was investigated by SEM-5300 and capacitance has been done using LCR-metra Agilent 4284A. The fractal modeling method using a reconstruction of microstructure configurations, like grains or intergranular contacts shapes has been successfully done. Furthermore, the area of grains surface was calculated by using fractal correction which expresses the grains surface irregularity through fractal dimension. For better and deeper the ceramics material microstructure characterization the Voronoi model and mathematical statistics calculations, are applied, also. The fractal nature for ceramics structure analysis providing a new ideas for modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties and new frontier for higher integration on electronic circuits. The presented results indicate that fractal method for structure ceramics analysis creates a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 -ceramic structure and dielectric and generally electric and microelectronics properties.
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  - Microelectronics miniaturization and fractal electronic frontiers
EP  - 15
SP  - 15
UR  - https://hdl.handle.net/21.15107/rcub_dais_410
ER  - 

@conference{
author = "Mitić, Vojislav V. and Paunović, Vesna and Kocić, Ljubiša and Janković, S. and Pavlović, Vladimir B.",
year = "2013",
abstract = "The intergrain ceramic structures are very complex and difficult to describe by using traditional analytical methods. In this study, in order to establish grain shapes of sintered ceramics, new approach on correlation between microstructure and properties of doped BaTiO3 -ceramics based on fractal geometry has been developed. BaTiO3 ceramics doped with CeO2, Bi2O3, Fe2O3, CaZrO3 Nb2O5, MnCO3 , La2O3, Er2O3, Yb2O3 and Ho2O3, were prepared using conventional solid state procedure and sintered at 1350°C. The sintered specimens microstructure was investigated by SEM-5300 and capacitance has been done using LCR-metra Agilent 4284A. The fractal modeling method using a reconstruction of microstructure configurations, like grains or intergranular contacts shapes has been successfully done. Furthermore, the area of grains surface was calculated by using fractal correction which expresses the grains surface irregularity through fractal dimension. For better and deeper the ceramics material microstructure characterization the Voronoi model and mathematical statistics calculations, are applied, also. The fractal nature for ceramics structure analysis providing a new ideas for modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties and new frontier for higher integration on electronic circuits. The presented results indicate that fractal method for structure ceramics analysis creates a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 -ceramic structure and dielectric and generally electric and microelectronics properties.",
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 = "Microelectronics miniaturization and fractal electronic frontiers",
pages = "15-15",
url = "https://hdl.handle.net/21.15107/rcub_dais_410"
}

Mitić, V. V., Paunović, V., Kocić, L., Janković, S.,& Pavlović, V. B.. (2013). Microelectronics miniaturization and fractal electronic frontiers. 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., 15-15.
https://hdl.handle.net/21.15107/rcub_dais_410

Mitić VV, Paunović V, Kocić L, Janković S, Pavlović VB. Microelectronics miniaturization and fractal electronic frontiers. 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;:15-15.
https://hdl.handle.net/21.15107/rcub_dais_410 .

Mitić, Vojislav V., Paunović, Vesna, Kocić, Ljubiša, Janković, S., Pavlović, Vladimir B., "Microelectronics miniaturization and fractal electronic frontiers" 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):15-15,
https://hdl.handle.net/21.15107/rcub_dais_410 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Šćepanović, Maja
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/134
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5660
AB  - Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012
T1  - Electrical Properties of Sintered Magnesium-titanate Ceramics
UR  - https://hdl.handle.net/21.15107/rcub_dais_134
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Šćepanović, Maja and Pavlović, Vladimir B. and Paunović, Vesna",
year = "2012",
abstract = "Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012",
title = "Electrical Properties of Sintered Magnesium-titanate Ceramics",
url = "https://hdl.handle.net/21.15107/rcub_dais_134"
}

Filipović, S., Obradović, N., Šćepanović, M., Pavlović, V. B.,& Paunović, V.. (2012). Electrical Properties of Sintered Magnesium-titanate Ceramics. .
https://hdl.handle.net/21.15107/rcub_dais_134

Filipović S, Obradović N, Šćepanović M, Pavlović VB, Paunović V. Electrical Properties of Sintered Magnesium-titanate Ceramics. 2012;.
https://hdl.handle.net/21.15107/rcub_dais_134 .

Filipović, Suzana, Obradović, Nina, Šćepanović, Maja, Pavlović, Vladimir B., Paunović, Vesna, "Electrical Properties of Sintered Magnesium-titanate Ceramics" (2012),
https://hdl.handle.net/21.15107/rcub_dais_134 .

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  - http://aspace.agrif.bg.ac.rs/handle/123456789/5682
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
EP  - 80
SP  - 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  - Mitić, Vojislav V.
AU  - Paunović, Vesna
AU  - Kocić, Ljubiša
AU  - Janković, S.
AU  - Pavlović, Vladimir B.
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/518
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5684
AB  - Since that the scientific and technological efforts to further miniaturization, "better packaging" and higher levels of integration of electronic components and subsystems, and modern microelectronics devices are increasingly limited, the new field of scientific views and perspectives in previously presented scientific work, contribute and create new solutions of electronics and materials science higher unity with the goal to be recognized the desired functions and highly integrated electronic properties with in the different microstructures levels. In this study, in order to establish grain shapes of sintered ceramics, new approach on correlation between microstructure and properties of rare-earth doped BaTiO3 -ceramics based on fractal geometry, related to intergranular contact surfaces and mathematical statistics calculations has been developed. BaTiO3-ceramics doped with different additives (Mn, La, Er, Yb, Ho,) were prepared using conventional solid state procedure and sintered at 1320C. The microstructure of specimens was investigated by SEM-5300 and capacitance has been done using LCR-meter Agilent 4284A. By using fractal modeling method of microstructure configurations reconstruction, like shapes of grains or intergranular contacts has been successfully done. Furthermore, the area of grains surface was calculated using fractal correction that expresses the irregularity of grains surface through fractal dimension For better and deeper characterization of the ceramics material microstructure the Voronoi model, mathematical statistics calculations, microstructure analysis on vertical view od the fracture between two pieces of samples, and contact surfaces analysis between the particles and grains, are applied The presented results indicate that fractal method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 -ceramic structure and dielectrical properties.
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  - New Frontiers: Miniaturization and Higher Level BaTiO3 -Ceramics Microelectronics Circuits Integration
EP  - 6
SP  - 6
UR  - https://hdl.handle.net/21.15107/rcub_dais_518
ER  - 

@conference{
author = "Mitić, Vojislav V. and Paunović, Vesna and Kocić, Ljubiša and Janković, S. and Pavlović, Vladimir B.",
year = "2012",
abstract = "Since that the scientific and technological efforts to further miniaturization, "better packaging" and higher levels of integration of electronic components and subsystems, and modern microelectronics devices are increasingly limited, the new field of scientific views and perspectives in previously presented scientific work, contribute and create new solutions of electronics and materials science higher unity with the goal to be recognized the desired functions and highly integrated electronic properties with in the different microstructures levels. In this study, in order to establish grain shapes of sintered ceramics, new approach on correlation between microstructure and properties of rare-earth doped BaTiO3 -ceramics based on fractal geometry, related to intergranular contact surfaces and mathematical statistics calculations has been developed. BaTiO3-ceramics doped with different additives (Mn, La, Er, Yb, Ho,) were prepared using conventional solid state procedure and sintered at 1320C. The microstructure of specimens was investigated by SEM-5300 and capacitance has been done using LCR-meter Agilent 4284A. By using fractal modeling method of microstructure configurations reconstruction, like shapes of grains or intergranular contacts has been successfully done. Furthermore, the area of grains surface was calculated using fractal correction that expresses the irregularity of grains surface through fractal dimension For better and deeper characterization of the ceramics material microstructure the Voronoi model, mathematical statistics calculations, microstructure analysis on vertical view od the fracture between two pieces of samples, and contact surfaces analysis between the particles and grains, are applied The presented results indicate that fractal method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 -ceramic structure and dielectrical properties.",
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 = "New Frontiers: Miniaturization and Higher Level BaTiO3 -Ceramics Microelectronics Circuits Integration",
pages = "6-6",
url = "https://hdl.handle.net/21.15107/rcub_dais_518"
}

Mitić, V. V., Paunović, V., Kocić, L., Janković, S.,& Pavlović, V. B.. (2012). New Frontiers: Miniaturization and Higher Level BaTiO3 -Ceramics Microelectronics Circuits Integration. 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., 6-6.
https://hdl.handle.net/21.15107/rcub_dais_518

Mitić VV, Paunović V, Kocić L, Janković S, Pavlović VB. New Frontiers: Miniaturization and Higher Level BaTiO3 -Ceramics Microelectronics Circuits Integration. in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts. 2012;:6-6.
https://hdl.handle.net/21.15107/rcub_dais_518 .

Mitić, Vojislav V., Paunović, Vesna, Kocić, Ljubiša, Janković, S., Pavlović, Vladimir B., "New Frontiers: Miniaturization and Higher Level BaTiO3 -Ceramics Microelectronics Circuits Integration" in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts (2012):6-6,
https://hdl.handle.net/21.15107/rcub_dais_518 .

TY  - CONF
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2010
UR  - http://dais.sanu.ac.rs/123456789/625
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5696
AB  - Starting mixtures of BaCO3, ZnO and TiO2 powders were mechanically activated in a planetary ball mill for various periods of time. The powders obtained were sintered nonisothermally to temperatures between 1100 and 1300°C and then held at those temperatures for 120 min. Results of structural characterization using X-ray powder diffraction method, DTA analyses and SEM analyses were conducted for activated and sintered samples. These results were correlated with the results of electric resistivity, capacitance and loss tangent of the samples and it was found that with increasing in milling time, the increase in values of electrical properties was noticed.
PB  - Kiev : National Academy of Sciences of Ukraine (NASU); Frantsevych Institute for Problems of Materials Science of NASU; National Technical University of Ukraine "KPI"; Ukrainian Materials Science Society; INTEM LTD
C3  - The second international Samsonov memorial conference "Material science of refractory compounds" : conference abstracts : May 18-20, 2010, Kyiv, Ukraine
T1  - Barium-zinc-titanate ceramics
EP  - 180
SP  - 180
UR  - https://hdl.handle.net/21.15107/rcub_dais_625
ER  - 

@conference{
author = "Obradović, Nina and Filipović, Suzana and Mitrić, Miodrag and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2010",
abstract = "Starting mixtures of BaCO3, ZnO and TiO2 powders were mechanically activated in a planetary ball mill for various periods of time. The powders obtained were sintered nonisothermally to temperatures between 1100 and 1300°C and then held at those temperatures for 120 min. Results of structural characterization using X-ray powder diffraction method, DTA analyses and SEM analyses were conducted for activated and sintered samples. These results were correlated with the results of electric resistivity, capacitance and loss tangent of the samples and it was found that with increasing in milling time, the increase in values of electrical properties was noticed.",
publisher = "Kiev : National Academy of Sciences of Ukraine (NASU); Frantsevych Institute for Problems of Materials Science of NASU; National Technical University of Ukraine "KPI"; Ukrainian Materials Science Society; INTEM LTD",
journal = "The second international Samsonov memorial conference "Material science of refractory compounds" : conference abstracts : May 18-20, 2010, Kyiv, Ukraine",
title = "Barium-zinc-titanate ceramics",
pages = "180-180",
url = "https://hdl.handle.net/21.15107/rcub_dais_625"
}

Obradović, N., Filipović, S., Mitrić, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2010). Barium-zinc-titanate ceramics. in The second international Samsonov memorial conference "Material science of refractory compounds" : conference abstracts : May 18-20, 2010, Kyiv, Ukraine
Kiev : National Academy of Sciences of Ukraine (NASU); Frantsevych Institute for Problems of Materials Science of NASU; National Technical University of Ukraine "KPI"; Ukrainian Materials Science Society; INTEM LTD., 180-180.
https://hdl.handle.net/21.15107/rcub_dais_625

Obradović N, Filipović S, Mitrić M, Pavlović VB, Paunović V, Ristić MM. Barium-zinc-titanate ceramics. in The second international Samsonov memorial conference "Material science of refractory compounds" : conference abstracts : May 18-20, 2010, Kyiv, Ukraine. 2010;:180-180.
https://hdl.handle.net/21.15107/rcub_dais_625 .

Obradović, Nina, Filipović, Suzana, Mitrić, Miodrag, Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Barium-zinc-titanate ceramics" in The second international Samsonov memorial conference "Material science of refractory compounds" : conference abstracts : May 18-20, 2010, Kyiv, Ukraine (2010):180-180,
https://hdl.handle.net/21.15107/rcub_dais_625 .

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  - http://dais.sanu.ac.rs/123456789/626
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5697
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.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
T1  - Structural and electrical properties of barium-zinc-titanate ceramics sintered at 1300ºc
EP  - 118
SP  - 118
UR  - https://hdl.handle.net/21.15107/rcub_dais_626
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 = "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.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010",
title = "Structural and electrical properties of barium-zinc-titanate ceramics sintered at 1300ºc",
pages = "118-118",
url = "https://hdl.handle.net/21.15107/rcub_dais_626"
}

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 1300ºc. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
Belgrade : Institute of Technical Sciences of SASA., 118-118.
https://hdl.handle.net/21.15107/rcub_dais_626

Obradović N, Filipović S, Pavlović VB, Paunović V, Mitrić M, Ristić MM. Structural and electrical properties of barium-zinc-titanate ceramics sintered at 1300ºc. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010. 2010;:118-118.
https://hdl.handle.net/21.15107/rcub_dais_626 .

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 1300ºc" in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010 (2010):118-118,
https://hdl.handle.net/21.15107/rcub_dais_626 .

TY  - JOUR
AU  - Paunović, Vesna
AU  - Mitić, Vojislav
AU  - Pavlović, Vladimir
AU  - Miljković, Miroslav
AU  - Živković, Ljiljana
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2350
AB  - La/Mn codoped BaTiO3 with different La2O3 content, ranging from 0.1 to 5.0 at% La, was investigated regarding their microstructural and dielectric characteristics. The content of 0.05 at% Mn was constant in all investigated samples. The samples were sintered at 1320°C and 1350°C for two hours. Microstructural studies were done using SEM and EDS analysis. The fine-grained microstructure was obtained even for low content of La. The appearance of secondary abnormal grains with serrated features along grain boundaries was observed in 1.0 at% La-BaTiO3 sintered at 1350°C. Nearly flat permittivity-temperature response was obtained in specimens with 2.0 and 5.0 at% La. Using the modified Curie-Weiss law a critical exponent γ and C' were calculated. The obtained values of γ pointed out the diffuse phase transformation in heavily doped BaTiO3 and great departure from the Curie-Weiss law for low doped ceramics.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics
EP  - 258
IS  - 4
SP  - 253
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2350
ER  - 

@article{
author = "Paunović, Vesna and Mitić, Vojislav and Pavlović, Vladimir and Miljković, Miroslav and Živković, Ljiljana",
year = "2010",
abstract = "La/Mn codoped BaTiO3 with different La2O3 content, ranging from 0.1 to 5.0 at% La, was investigated regarding their microstructural and dielectric characteristics. The content of 0.05 at% Mn was constant in all investigated samples. The samples were sintered at 1320°C and 1350°C for two hours. Microstructural studies were done using SEM and EDS analysis. The fine-grained microstructure was obtained even for low content of La. The appearance of secondary abnormal grains with serrated features along grain boundaries was observed in 1.0 at% La-BaTiO3 sintered at 1350°C. Nearly flat permittivity-temperature response was obtained in specimens with 2.0 and 5.0 at% La. Using the modified Curie-Weiss law a critical exponent γ and C' were calculated. The obtained values of γ pointed out the diffuse phase transformation in heavily doped BaTiO3 and great departure from the Curie-Weiss law for low doped ceramics.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics",
pages = "258-253",
number = "4",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2350"
}

Paunović, V., Mitić, V., Pavlović, V., Miljković, M.,& Živković, L.. (2010). Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 4(4), 253-258.
https://hdl.handle.net/21.15107/rcub_agrospace_2350

Paunović V, Mitić V, Pavlović V, Miljković M, Živković L. Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics. in Processing and Application of Ceramics. 2010;4(4):253-258.
https://hdl.handle.net/21.15107/rcub_agrospace_2350 .

Paunović, Vesna, Mitić, Vojislav, Pavlović, Vladimir, Miljković, Miroslav, Živković, Ljiljana, "Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics" in Processing and Application of Ceramics, 4, no. 4 (2010):253-258,
https://hdl.handle.net/21.15107/rcub_agrospace_2350 .

TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Nikolić, Zoran S.
AU  - Pavlović, Vladimir
AU  - Paunović, Vesna
AU  - Miljković, Miroslav
AU  - Jordović, Branka
AU  - Zivković, Ljiljana
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2372
AB  - In this article, ytterbium and erbium oxides are used as doping materials for barium titanate (BaTiO(3)) materials. The amphoteric behavior of these rare-earth ions leads to the increase of dielectric permittivity and decrease of dielectric losses. BaTiO(3) ceramics doped with 0.01-0.5 wt% of Yb(2)O(3) and Er(2)O(3) were prepared by conventional solid-state procedure and sintered at 1320 degrees C for 4 h. In BaTiO(3) doped with a low content of rare-earth ions (0.01 wt%) the grain size ranged between 10 and 25 pm. With the higher dopant concentration of 0.5 wt%, the abnormal grain growth is inhibited and the grain size ranged between 2 and 10 mu m. The measurements of capacitance and dielectric losses as a function of frequency and temperature have been carried out in order to correlate the microstructure and dielectric properties of doped BaTiO(3) ceramics. The temperature dependence of the dielectric constant as a function of dopant amount has been investigated.
PB  - Wiley-Blackwell Publishing, Inc, Malden
T2  - Journal of the American Ceramic Society
T1  - Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties
EP  - 137
IS  - 1
SP  - 132
VL  - 93
DO  - 10.1111/j.1551-2916.2009.03309.x
ER  - 

@article{
author = "Mitić, Vojislav V. and Nikolić, Zoran S. and Pavlović, Vladimir and Paunović, Vesna and Miljković, Miroslav and Jordović, Branka and Zivković, Ljiljana",
year = "2010",
abstract = "In this article, ytterbium and erbium oxides are used as doping materials for barium titanate (BaTiO(3)) materials. The amphoteric behavior of these rare-earth ions leads to the increase of dielectric permittivity and decrease of dielectric losses. BaTiO(3) ceramics doped with 0.01-0.5 wt% of Yb(2)O(3) and Er(2)O(3) were prepared by conventional solid-state procedure and sintered at 1320 degrees C for 4 h. In BaTiO(3) doped with a low content of rare-earth ions (0.01 wt%) the grain size ranged between 10 and 25 pm. With the higher dopant concentration of 0.5 wt%, the abnormal grain growth is inhibited and the grain size ranged between 2 and 10 mu m. The measurements of capacitance and dielectric losses as a function of frequency and temperature have been carried out in order to correlate the microstructure and dielectric properties of doped BaTiO(3) ceramics. The temperature dependence of the dielectric constant as a function of dopant amount has been investigated.",
publisher = "Wiley-Blackwell Publishing, Inc, Malden",
journal = "Journal of the American Ceramic Society",
title = "Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties",
pages = "137-132",
number = "1",
volume = "93",
doi = "10.1111/j.1551-2916.2009.03309.x"
}

Mitić, V. V., Nikolić, Z. S., Pavlović, V., Paunović, V., Miljković, M., Jordović, B.,& Zivković, L.. (2010). Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties. in Journal of the American Ceramic Society
Wiley-Blackwell Publishing, Inc, Malden., 93(1), 132-137.
https://doi.org/10.1111/j.1551-2916.2009.03309.x

Mitić VV, Nikolić ZS, Pavlović V, Paunović V, Miljković M, Jordović B, Zivković L. Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties. in Journal of the American Ceramic Society. 2010;93(1):132-137.
doi:10.1111/j.1551-2916.2009.03309.x .

Mitić, Vojislav V., Nikolić, Zoran S., Pavlović, Vladimir, Paunović, Vesna, Miljković, Miroslav, Jordović, Branka, Zivković, Ljiljana, "Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties" in Journal of the American Ceramic Society, 93, no. 1 (2010):132-137,
https://doi.org/10.1111/j.1551-2916.2009.03309.x . .