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 sampl...es.
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 . .
