TY  - JOUR
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Ilić, Nikola
AU  - Palaimiene, E.
AU  - Grigalaitis, R.
AU  - Paiva-Santos, C. O.
AU  - Cilense, Mario
AU  - Stojanović, Biljana D
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/834
AB  - The processing of ferroelectric BaBi4Ti4O15 (BBT) ceramics from powders prepared by conventional solid state reaction (SSR) and mechanochemical activation (MA) has been investigated. It was shown that MA synthesis reduces the synthesis temperature of BBT powders, leading to smaller particles with reduced anisotropy and consequently to smaller grain size of ceramics. Dielectric properties were investigated in a wide range of temperatures (20-800 degrees C) and frequencies (1.21 kHz to 1 MHz). The relative dielectric permittivity at Curie temperature was higher for solid state obtained ceramics than for the mechanically treated ones. The conductivity of sintered samples was studied, suggesting decreasing of conductivity of BBT-MA in comparison with BBT-SS ceramics. The influence of the grain and the grain boundaries contribution to the dielectric behavior in both ceramics was analyzed through impedance spectroscopy. A well-defined ferroelectric hysteresis loop was obtained for both samples.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties
EP  - 316
IS  - 1
SP  - 309
VL  - 41
DO  - 10.1016/j.ceramint.2014.08.073
ER  - 

@article{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Ilić, Nikola and Palaimiene, E. and Grigalaitis, R. and Paiva-Santos, C. O. and Cilense, Mario and Stojanović, Biljana D",
year = "2015",
abstract = "The processing of ferroelectric BaBi4Ti4O15 (BBT) ceramics from powders prepared by conventional solid state reaction (SSR) and mechanochemical activation (MA) has been investigated. It was shown that MA synthesis reduces the synthesis temperature of BBT powders, leading to smaller particles with reduced anisotropy and consequently to smaller grain size of ceramics. Dielectric properties were investigated in a wide range of temperatures (20-800 degrees C) and frequencies (1.21 kHz to 1 MHz). The relative dielectric permittivity at Curie temperature was higher for solid state obtained ceramics than for the mechanically treated ones. The conductivity of sintered samples was studied, suggesting decreasing of conductivity of BBT-MA in comparison with BBT-SS ceramics. The influence of the grain and the grain boundaries contribution to the dielectric behavior in both ceramics was analyzed through impedance spectroscopy. A well-defined ferroelectric hysteresis loop was obtained for both samples.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties",
pages = "316-309",
number = "1",
volume = "41",
doi = "10.1016/j.ceramint.2014.08.073"
}

Bobić, J., Vijatović Petrović, M., Ilić, N., Palaimiene, E., Grigalaitis, R., Paiva-Santos, C. O., Cilense, M.,& Stojanović, B. D.. (2015). Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties. in Ceramics International
Elsevier Sci Ltd, Oxford., 41(1), 309-316.
https://doi.org/10.1016/j.ceramint.2014.08.073

Bobić J, Vijatović Petrović M, Ilić N, Palaimiene E, Grigalaitis R, Paiva-Santos CO, Cilense M, Stojanović BD. Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties. in Ceramics International. 2015;41(1):309-316.
doi:10.1016/j.ceramint.2014.08.073 .

Bobić, Jelena, Vijatović Petrović, Mirjana, Ilić, Nikola, Palaimiene, E., Grigalaitis, R., Paiva-Santos, C. O., Cilense, Mario, Stojanović, Biljana D, "Lead-free BaBi4Ti4O15 ceramics: Effect of synthesis methods on phase formation and electrical properties" in Ceramics International, 41, no. 1 (2015):309-316,
https://doi.org/10.1016/j.ceramint.2014.08.073 . .

TY  - JOUR
AU  - Bobić, Jelena
AU  - Stojanović, Biljana D
AU  - Paiva-Santos, C. O.
AU  - Živković, L. J.
AU  - Vijatović Petrović, Mirjana
AU  - Cilense, Mario
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/278
AB  - Bi4Ti4O15 [BBT], a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of BaTiO3 [BT] and Bi4Ti3O12 [BIT] obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. BBT ceramics were sintered at 1100C for 4 h without pre-calcination step within heating rate 10C/min. The formation of phase and crystal structure of BT, BIT and BBT were approved using X-ray analysis. The morphology of obtained powders and microstructure were exhamined using scanning electron microscopy. The electrical properties of sintered samples were carried out.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Ferroelectrics
T1  - Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis
EP  - 391
SP  - 383
VL  - 368
DO  - 10.1080/00150190802368305
ER  - 

@article{
author = "Bobić, Jelena and Stojanović, Biljana D and Paiva-Santos, C. O. and Živković, L. J. and Vijatović Petrović, Mirjana and Cilense, Mario",
year = "2008",
abstract = "Bi4Ti4O15 [BBT], a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of BaTiO3 [BT] and Bi4Ti3O12 [BIT] obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. BBT ceramics were sintered at 1100C for 4 h without pre-calcination step within heating rate 10C/min. The formation of phase and crystal structure of BT, BIT and BBT were approved using X-ray analysis. The morphology of obtained powders and microstructure were exhamined using scanning electron microscopy. The electrical properties of sintered samples were carried out.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Ferroelectrics",
title = "Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis",
pages = "391-383",
volume = "368",
doi = "10.1080/00150190802368305"
}

Bobić, J., Stojanović, B. D., Paiva-Santos, C. O., Živković, L. J., Vijatović Petrović, M.,& Cilense, M.. (2008). Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Ferroelectrics
Taylor & Francis Ltd, Abingdon., 368, 383-391.
https://doi.org/10.1080/00150190802368305

Bobić J, Stojanović BD, Paiva-Santos CO, Živković LJ, Vijatović Petrović M, Cilense M. Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in Ferroelectrics. 2008;368:383-391.
doi:10.1080/00150190802368305 .

Bobić, Jelena, Stojanović, Biljana D, Paiva-Santos, C. O., Živković, L. J., Vijatović Petrović, Mirjana, Cilense, Mario, "Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis" in Ferroelectrics, 368 (2008):383-391,
https://doi.org/10.1080/00150190802368305 . .

TY  - CONF
AU  - Bobić, Jelena
AU  - Paiva-Santos, C. O.
AU  - Jovalekic, Cedomir
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2685
AB  - Recently there has been renewed interest in the properties
of the Aurivillius phases as temperature-stable ferropiezoelectrics
[1 ]. Several bismuth-layered crystal structures
and their properties have been investigated in detail [2].
However, a lot of aspects of the preparation and properties of
barium bismuth titanate remain unexplored, whereas being
promising candidate for memory applications.
In present work barium bismuth titanate (BaBi4Ti4Ors-
BBT) was prepared from stoichiometric quantities of barium
titanate and bismuth titanate obtained via mechanochemical
synthesis. Barium titanate (BaTiO3-BT) has been synthesised
from mixture of BaO and TiO2 and bismuth titanate
(Bi4Ti3Or2-BIT) was prepared starling from Bi2O3 and TiO2,
commercially available. \4echanochemical synthesis was
performed in air atmosphere in a planetary ball mill, for BT
during 60 min and for BIT during 360 min. Milling conditions
were: zirconium oxide jars and zirconium oxide balls, ball-to-powder
weight ration 20:7 and determined basic disc and
disc with jars rotation speed. The powder mixture of BT and
BIT was homogenized for 60 min.
BaEli4Ti4ols ceramics were sintered at 1100'C for 2, 4
and 12 hours without pre-calcination step. The heating rate
was 1OoC/min. The formation of phase and crystal structure of
BaTiO3, Bi4Ti3O12 and BaBiaTiaOl5 were approved by XRD
analysis. The morphology of obtained powders and
microstructure were examined by SEM method. The
electrical properties of sintered samples were carried out.
PB  - 11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007
C3  - 11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007
T1  - Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2685
ER  - 

@conference{
author = "Bobić, Jelena and Paiva-Santos, C. O. and Jovalekic, Cedomir and Vijatović Petrović, Mirjana and Stojanović, Biljana",
year = "2007",
abstract = "Recently there has been renewed interest in the properties
of the Aurivillius phases as temperature-stable ferropiezoelectrics
[1 ]. Several bismuth-layered crystal structures
and their properties have been investigated in detail [2].
However, a lot of aspects of the preparation and properties of
barium bismuth titanate remain unexplored, whereas being
promising candidate for memory applications.
In present work barium bismuth titanate (BaBi4Ti4Ors-
BBT) was prepared from stoichiometric quantities of barium
titanate and bismuth titanate obtained via mechanochemical
synthesis. Barium titanate (BaTiO3-BT) has been synthesised
from mixture of BaO and TiO2 and bismuth titanate
(Bi4Ti3Or2-BIT) was prepared starling from Bi2O3 and TiO2,
commercially available. \4echanochemical synthesis was
performed in air atmosphere in a planetary ball mill, for BT
during 60 min and for BIT during 360 min. Milling conditions
were: zirconium oxide jars and zirconium oxide balls, ball-to-powder
weight ration 20:7 and determined basic disc and
disc with jars rotation speed. The powder mixture of BT and
BIT was homogenized for 60 min.
BaEli4Ti4ols ceramics were sintered at 1100'C for 2, 4
and 12 hours without pre-calcination step. The heating rate
was 1OoC/min. The formation of phase and crystal structure of
BaTiO3, Bi4Ti3O12 and BaBiaTiaOl5 were approved by XRD
analysis. The morphology of obtained powders and
microstructure were examined by SEM method. The
electrical properties of sintered samples were carried out.",
publisher = "11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007",
journal = "11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007",
title = "Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2685"
}

Bobić, J., Paiva-Santos, C. O., Jovalekic, C., Vijatović Petrović, M.,& Stojanović, B.. (2007). Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in 11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007
11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007..
https://hdl.handle.net/21.15107/rcub_rimsi_2685

Bobić J, Paiva-Santos CO, Jovalekic C, Vijatović Petrović M, Stojanović B. Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis. in 11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007. 2007;.
https://hdl.handle.net/21.15107/rcub_rimsi_2685 .

Bobić, Jelena, Paiva-Santos, C. O., Jovalekic, Cedomir, Vijatović Petrović, Mirjana, Stojanović, Biljana, "Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis" in 11th European Meeting on Ferroelectricity, Bled, Slovenia, 3-7 September 2007 (2007),
https://hdl.handle.net/21.15107/rcub_rimsi_2685 .

TY  - JOUR
AU  - Branković, Goran
AU  - Branković, Zorica
AU  - Goes, MS
AU  - Paiva-Santos, C. O.
AU  - Cilense, Mario
AU  - Varela, JA
AU  - Longo, Elson
PY  - 2005
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/125
AB  - Ultasonic spray pyrolysis (SP) has been investigated for the production of the barium strontium titanate (BST) powders from the polymeric precursors. The processing parameters, such as flux of aerosol and temperature profile inside the furnace, were optimized to obtain single phase BST. The powders were characterized by the methods of X-ray diffraction analysis, SEM, EDS and TEM. The obtained powders were submicronic, consisting of spherical, polycrystalline particles, with internal nanocrystalline structure. Crystallite size of 10 nut, calculated using Rietveld refinement, is in a good agreement with results of HRTEM.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Science and Engineering B-Solid State Materials for Advanced Technology
T1  - Barium strontium titanate powders prepared by spray pyrolysis
EP  - 144
IS  - 2
SP  - 140
VL  - 122
DO  - 10.1016/j.mseb.2005.05.016
ER  - 

@article{
author = "Branković, Goran and Branković, Zorica and Goes, MS and Paiva-Santos, C. O. and Cilense, Mario and Varela, JA and Longo, Elson",
year = "2005",
abstract = "Ultasonic spray pyrolysis (SP) has been investigated for the production of the barium strontium titanate (BST) powders from the polymeric precursors. The processing parameters, such as flux of aerosol and temperature profile inside the furnace, were optimized to obtain single phase BST. The powders were characterized by the methods of X-ray diffraction analysis, SEM, EDS and TEM. The obtained powders were submicronic, consisting of spherical, polycrystalline particles, with internal nanocrystalline structure. Crystallite size of 10 nut, calculated using Rietveld refinement, is in a good agreement with results of HRTEM.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering B-Solid State Materials for Advanced Technology",
title = "Barium strontium titanate powders prepared by spray pyrolysis",
pages = "144-140",
number = "2",
volume = "122",
doi = "10.1016/j.mseb.2005.05.016"
}

Branković, G., Branković, Z., Goes, M., Paiva-Santos, C. O., Cilense, M., Varela, J.,& Longo, E.. (2005). Barium strontium titanate powders prepared by spray pyrolysis. in Materials Science and Engineering B-Solid State Materials for Advanced Technology
Elsevier Science Sa, Lausanne., 122(2), 140-144.
https://doi.org/10.1016/j.mseb.2005.05.016

Branković G, Branković Z, Goes M, Paiva-Santos CO, Cilense M, Varela J, Longo E. Barium strontium titanate powders prepared by spray pyrolysis. in Materials Science and Engineering B-Solid State Materials for Advanced Technology. 2005;122(2):140-144.
doi:10.1016/j.mseb.2005.05.016 .

Branković, Goran, Branković, Zorica, Goes, MS, Paiva-Santos, C. O., Cilense, Mario, Varela, JA, Longo, Elson, "Barium strontium titanate powders prepared by spray pyrolysis" in Materials Science and Engineering B-Solid State Materials for Advanced Technology, 122, no. 2 (2005):140-144,
https://doi.org/10.1016/j.mseb.2005.05.016 . .