TY  - JOUR
AU  - Vijatović Petrović, Mirjana
AU  - Bobić, Jelena
AU  - Radojković, Aleksandar
AU  - Banys, J
AU  - Stojanović, Biljana D
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/597
AB  - Barium titanate powder was prepared by soft chemical process from polymeric precursors (modified Pechini process). The synthesized barium titanate (BT) powder was nanosized and the factor of agglomeration (F-agg) pointed the existence of agglomerates. In order to de-agglomerate nanopowder and to enhance BT properties the attrition milling was performed. The milled powder (BTA) possessed smaller particles and the size and number of agglomerates was significantly reduced. To investigate the effect of milling on improvement of ceramics electrical properties, both BT and BTA powders were uniaxially pressed and sintered at 1300 degrees C for 8 h in air. The temperature dependence of relative permittivity showed three structural phase transitions for ferroelectric barium titanate ceramics. The dielectric constant at Curie temperature was similar to 6700 for BTA which is much higher than 1340, obtained for non-treated BT. The dielectric losses were below 0.04 in both BT ceramics. At higher temperatures the analysis of impedance measurements showed the presence of both grain interior and grain boundary effects. Much higher grain and grain boundary resistivities were obtained for the BTA ceramics.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Improvement of barium titanate properties induced by attrition milling
EP  - 5354
IS  - 7
SP  - 5347
VL  - 38
DO  - 10.1016/j.ceramint.2012.03.041
ER  - 

@article{
author = "Vijatović Petrović, Mirjana and Bobić, Jelena and Radojković, Aleksandar and Banys, J and Stojanović, Biljana D",
year = "2012",
abstract = "Barium titanate powder was prepared by soft chemical process from polymeric precursors (modified Pechini process). The synthesized barium titanate (BT) powder was nanosized and the factor of agglomeration (F-agg) pointed the existence of agglomerates. In order to de-agglomerate nanopowder and to enhance BT properties the attrition milling was performed. The milled powder (BTA) possessed smaller particles and the size and number of agglomerates was significantly reduced. To investigate the effect of milling on improvement of ceramics electrical properties, both BT and BTA powders were uniaxially pressed and sintered at 1300 degrees C for 8 h in air. The temperature dependence of relative permittivity showed three structural phase transitions for ferroelectric barium titanate ceramics. The dielectric constant at Curie temperature was similar to 6700 for BTA which is much higher than 1340, obtained for non-treated BT. The dielectric losses were below 0.04 in both BT ceramics. At higher temperatures the analysis of impedance measurements showed the presence of both grain interior and grain boundary effects. Much higher grain and grain boundary resistivities were obtained for the BTA ceramics.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Improvement of barium titanate properties induced by attrition milling",
pages = "5354-5347",
number = "7",
volume = "38",
doi = "10.1016/j.ceramint.2012.03.041"
}

Vijatović Petrović, M., Bobić, J., Radojković, A., Banys, J.,& Stojanović, B. D.. (2012). Improvement of barium titanate properties induced by attrition milling. in Ceramics International
Elsevier Sci Ltd, Oxford., 38(7), 5347-5354.
https://doi.org/10.1016/j.ceramint.2012.03.041

Vijatović Petrović M, Bobić J, Radojković A, Banys J, Stojanović BD. Improvement of barium titanate properties induced by attrition milling. in Ceramics International. 2012;38(7):5347-5354.
doi:10.1016/j.ceramint.2012.03.041 .

Vijatović Petrović, Mirjana, Bobić, Jelena, Radojković, Aleksandar, Banys, J, Stojanović, Biljana D, "Improvement of barium titanate properties induced by attrition milling" in Ceramics International, 38, no. 7 (2012):5347-5354,
https://doi.org/10.1016/j.ceramint.2012.03.041 . .

TY  - JOUR
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana D
AU  - Bobić, Jelena
AU  - Ramoska, T
AU  - Bowen, P
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/428
AB  - Pure and barium titanate (BT) powders doped with different lanthanum concentration were prepared by the polymeric precursor method (Pechini process) which was carried out as a three-stage process from organometallic complexes. Sintering of pressed powders was performed at 1300 degrees C for 2, 4 and 8 h. XRD analysis showed cubic BT powders with crystallite sizes between 20 and 25 nm and tetragonal crystal structure of BT ceramics. The influence of sintering time on grain growth was fairly obvious. It was found that lanthanum doping has significant effect on powders particle size and ceramics grain size. The influence of lanthanum concentration on grain size inhibition, improving the dielectric properties of BT ceramics was detected. The relation between sintering time, grain size, structure and electrical properties of the BT ceramics was analyzed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Properties of lanthanum doped BaTiO3 produced from nanopowders
EP  - 1824
IS  - 6
SP  - 1817
VL  - 36
DO  - 10.1016/j.ceramint.2010.03.010
ER  - 

@article{
author = "Vijatović Petrović, Mirjana and Stojanović, Biljana D and Bobić, Jelena and Ramoska, T and Bowen, P",
year = "2010",
abstract = "Pure and barium titanate (BT) powders doped with different lanthanum concentration were prepared by the polymeric precursor method (Pechini process) which was carried out as a three-stage process from organometallic complexes. Sintering of pressed powders was performed at 1300 degrees C for 2, 4 and 8 h. XRD analysis showed cubic BT powders with crystallite sizes between 20 and 25 nm and tetragonal crystal structure of BT ceramics. The influence of sintering time on grain growth was fairly obvious. It was found that lanthanum doping has significant effect on powders particle size and ceramics grain size. The influence of lanthanum concentration on grain size inhibition, improving the dielectric properties of BT ceramics was detected. The relation between sintering time, grain size, structure and electrical properties of the BT ceramics was analyzed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Properties of lanthanum doped BaTiO3 produced from nanopowders",
pages = "1824-1817",
number = "6",
volume = "36",
doi = "10.1016/j.ceramint.2010.03.010"
}

Vijatović Petrović, M., Stojanović, B. D., Bobić, J., Ramoska, T.,& Bowen, P.. (2010). Properties of lanthanum doped BaTiO3 produced from nanopowders. in Ceramics International
Elsevier Sci Ltd, Oxford., 36(6), 1817-1824.
https://doi.org/10.1016/j.ceramint.2010.03.010

Vijatović Petrović M, Stojanović BD, Bobić J, Ramoska T, Bowen P. Properties of lanthanum doped BaTiO3 produced from nanopowders. in Ceramics International. 2010;36(6):1817-1824.
doi:10.1016/j.ceramint.2010.03.010 .

Vijatović Petrović, Mirjana, Stojanović, Biljana D, Bobić, Jelena, Ramoska, T, Bowen, P, "Properties of lanthanum doped BaTiO3 produced from nanopowders" in Ceramics International, 36, no. 6 (2010):1817-1824,
https://doi.org/10.1016/j.ceramint.2010.03.010 . .

TY  - JOUR
AU  - Lazarević, Zorica Z
AU  - Bobić, Jelena
AU  - Romčević, Nebojša
AU  - Paunović, Novica
AU  - Stojanović, Biljana D
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/305
AB  - Barium-bismuth titanate, BaBi4Ti4O15 (BBT), a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of barium titanate and bismuth titanate obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. The reaction mechanism of BaBi4Ti4O15 and the preparation and characteristics of BBT ceramic powders were studied using XRD, Raman spectroscopy, particle analysis and SEM. The Bi-layered perovskite structure Of BaBi4Ti4O15 ceramic forms at 1100 degrees C for 4 h without a pre-calcination step. The microstructure of BaBi4Ti4O15 exhibits plate-like grains typical for the Bi-layered structured material and spherical and polygonal grains. The Ba2+ addition leads to changes in the microstructure development, particularly in the change of the average grain size.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis
EP  - 335
IS  - 3
SP  - 329
VL  - 41
DO  - 10.2298/SOS0903329L
ER  - 

@article{
author = "Lazarević, Zorica Z and Bobić, Jelena and Romčević, Nebojša and Paunović, Novica and Stojanović, Biljana D",
year = "2009",
abstract = "Barium-bismuth titanate, BaBi4Ti4O15 (BBT), a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of barium titanate and bismuth titanate obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. The reaction mechanism of BaBi4Ti4O15 and the preparation and characteristics of BBT ceramic powders were studied using XRD, Raman spectroscopy, particle analysis and SEM. The Bi-layered perovskite structure Of BaBi4Ti4O15 ceramic forms at 1100 degrees C for 4 h without a pre-calcination step. The microstructure of BaBi4Ti4O15 exhibits plate-like grains typical for the Bi-layered structured material and spherical and polygonal grains. The Ba2+ addition leads to changes in the microstructure development, particularly in the change of the average grain size.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis",
pages = "335-329",
number = "3",
volume = "41",
doi = "10.2298/SOS0903329L"
}

Lazarević, Z. Z., Bobić, J., Romčević, N., Paunović, N.,& Stojanović, B. D.. (2009). Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 41(3), 329-335.
https://doi.org/10.2298/SOS0903329L

Lazarević ZZ, Bobić J, Romčević N, Paunović N, Stojanović BD. Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Science of Sintering. 2009;41(3):329-335.
doi:10.2298/SOS0903329L .

Lazarević, Zorica Z, Bobić, Jelena, Romčević, Nebojša, Paunović, Novica, Stojanović, Biljana D, "Study of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis" in Science of Sintering, 41, no. 3 (2009):329-335,
https://doi.org/10.2298/SOS0903329L . .

TY  - JOUR
AU  - Mancic, D.
AU  - Paunović, V.
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana D
AU  - Živković, Lj
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/283
AB  - The dielectric permittivity and dissipation factor of La-doped and undoped BaTiO3 were investigated as a function of frequency and temperature. The impedance response was used to study the electrical properties of La-doped BaTiO3 over the temperature range from room temperature (RT) to 350 degrees C. La-doped and undoped BaTiO3, obtained by a modified Pechini method, were sintered in air at 1300 degrees C for 2 and 16 hours. The impedance spectra were analyzed in terms of equivalent circuits involving resistors, capacitors and constant phase elements (CPE). The most suitable electrical circuit for the interpretation of experimental results is found to be the equivalent circuit consisting of resistors and CPE elements which replace the capacitor elements. The contribution of grain boundary resistance to the total resistance of a system is remarkable at low temperature. Dielectric permittivity of doped BaTiO3 was in the range of 8000 to 12000 at 1 kHz and the dissipation factor was less than 1%.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Electrical Characterization and Impedance Response of Lanthanum Doped Barium Titanate Ceramics
EP  - 294
IS  - 3
SP  - 283
VL  - 40
DO  - 10.2298/SOS0803283M
ER  - 

@article{
author = "Mancic, D. and Paunović, V. and Vijatović Petrović, Mirjana and Stojanović, Biljana D and Živković, Lj",
year = "2008",
abstract = "The dielectric permittivity and dissipation factor of La-doped and undoped BaTiO3 were investigated as a function of frequency and temperature. The impedance response was used to study the electrical properties of La-doped BaTiO3 over the temperature range from room temperature (RT) to 350 degrees C. La-doped and undoped BaTiO3, obtained by a modified Pechini method, were sintered in air at 1300 degrees C for 2 and 16 hours. The impedance spectra were analyzed in terms of equivalent circuits involving resistors, capacitors and constant phase elements (CPE). The most suitable electrical circuit for the interpretation of experimental results is found to be the equivalent circuit consisting of resistors and CPE elements which replace the capacitor elements. The contribution of grain boundary resistance to the total resistance of a system is remarkable at low temperature. Dielectric permittivity of doped BaTiO3 was in the range of 8000 to 12000 at 1 kHz and the dissipation factor was less than 1%.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Electrical Characterization and Impedance Response of Lanthanum Doped Barium Titanate Ceramics",
pages = "294-283",
number = "3",
volume = "40",
doi = "10.2298/SOS0803283M"
}

Mancic, D., Paunović, V., Vijatović Petrović, M., Stojanović, B. D.,& Živković, L.. (2008). Electrical Characterization and Impedance Response of Lanthanum Doped Barium Titanate Ceramics. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 40(3), 283-294.
https://doi.org/10.2298/SOS0803283M

Mancic D, Paunović V, Vijatović Petrović M, Stojanović BD, Živković L. Electrical Characterization and Impedance Response of Lanthanum Doped Barium Titanate Ceramics. in Science of Sintering. 2008;40(3):283-294.
doi:10.2298/SOS0803283M .

Mancic, D., Paunović, V., Vijatović Petrović, Mirjana, Stojanović, Biljana D, Živković, Lj, "Electrical Characterization and Impedance Response of Lanthanum Doped Barium Titanate Ceramics" in Science of Sintering, 40, no. 3 (2008):283-294,
https://doi.org/10.2298/SOS0803283M . .

TY  - JOUR
AU  - Vijatović Petrović, Mirjana
AU  - Bobić, Jelena
AU  - Stojanović, Biljana D
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/279
AB  - Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties. Barium titanate is a member of a large family of compounds with the general formula ABO(3) called perovskites. Barium titanate can be prepared using different methods. The synthesis method depends on the desired characteristics for the end application. The used method has a significant influence on the structure and properties of barium titanate materials. In this review paper, Part I contains a study of the BaTiO3 structure and frequently used synthesis methods.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - History and challenges of barium titanate: Part I
EP  - 165
IS  - 2
SP  - 155
VL  - 40
DO  - 10.2298/SOS0802155V
ER  - 

@article{
author = "Vijatović Petrović, Mirjana and Bobić, Jelena and Stojanović, Biljana D",
year = "2008",
abstract = "Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties. Barium titanate is a member of a large family of compounds with the general formula ABO(3) called perovskites. Barium titanate can be prepared using different methods. The synthesis method depends on the desired characteristics for the end application. The used method has a significant influence on the structure and properties of barium titanate materials. In this review paper, Part I contains a study of the BaTiO3 structure and frequently used synthesis methods.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "History and challenges of barium titanate: Part I",
pages = "165-155",
number = "2",
volume = "40",
doi = "10.2298/SOS0802155V"
}

Vijatović Petrović, M., Bobić, J.,& Stojanović, B. D.. (2008). History and challenges of barium titanate: Part I. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 40(2), 155-165.
https://doi.org/10.2298/SOS0802155V

Vijatović Petrović M, Bobić J, Stojanović BD. History and challenges of barium titanate: Part I. in Science of Sintering. 2008;40(2):155-165.
doi:10.2298/SOS0802155V .

Vijatović Petrović, Mirjana, Bobić, Jelena, Stojanović, Biljana D, "History and challenges of barium titanate: Part I" in Science of Sintering, 40, no. 2 (2008):155-165,
https://doi.org/10.2298/SOS0802155V . .