Pure and lanthanum doped barium bismuth titanate BaBi4-xLaxTi4O15 (BBLT, x=0, 0.05, 0.15, 0.30) ceramics were prepared utilizing solid state method. The X-ray diffraction (XRD) data confirmed formation of single-phase Aurivillius compounds while SEM micrographs did not show evident grain size change of doped ceramics. Dielectric properties were investigated in 1.21 kHz to 1 MHz frequency range and in the temperature range of 20 to 727 C. When Bi3+ is substituted with La3+, a significant disorder was induced and the material exhibited broadening of the phase transition. Impedance analysis confirmed the presence of two semicircular arcs in doped samples suggesting the existence of grain and grain-boundary conduction. The dc-conductivity and activation energies were evaluated for all compositions.
Keywords:
Powders: solid state reaction / Electrical conductivity / Dielectric properties
TY - JOUR
AU - Bobić, Jelena
AU - Vijatović-Petrović, Mirjana
AU - Banys, J
AU - Stojanović, Biljana D
PY - 2013
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/698
AB - Pure and lanthanum doped barium bismuth titanate BaBi4-xLaxTi4O15 (BBLT, x=0, 0.05, 0.15, 0.30) ceramics were prepared utilizing solid state method. The X-ray diffraction (XRD) data confirmed formation of single-phase Aurivillius compounds while SEM micrographs did not show evident grain size change of doped ceramics. Dielectric properties were investigated in 1.21 kHz to 1 MHz frequency range and in the temperature range of 20 to 727 C. When Bi3+ is substituted with La3+, a significant disorder was induced and the material exhibited broadening of the phase transition. Impedance analysis confirmed the presence of two semicircular arcs in doped samples suggesting the existence of grain and grain-boundary conduction. The dc-conductivity and activation energies were evaluated for all compositions.
PB - Elsevier Sci Ltd, Oxford
T2 - Ceramics International
T1 - Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15
EP - 8057
IS - 7
SP - 8049
VL - 39
DO - 10.1016/j.ceramint.2013.03.075
ER -
@article{
author = "Bobić, Jelena and Vijatović-Petrović, Mirjana and Banys, J and Stojanović, Biljana D",
year = "2013",
abstract = "Pure and lanthanum doped barium bismuth titanate BaBi4-xLaxTi4O15 (BBLT, x=0, 0.05, 0.15, 0.30) ceramics were prepared utilizing solid state method. The X-ray diffraction (XRD) data confirmed formation of single-phase Aurivillius compounds while SEM micrographs did not show evident grain size change of doped ceramics. Dielectric properties were investigated in 1.21 kHz to 1 MHz frequency range and in the temperature range of 20 to 727 C. When Bi3+ is substituted with La3+, a significant disorder was induced and the material exhibited broadening of the phase transition. Impedance analysis confirmed the presence of two semicircular arcs in doped samples suggesting the existence of grain and grain-boundary conduction. The dc-conductivity and activation energies were evaluated for all compositions.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15",
pages = "8057-8049",
number = "7",
volume = "39",
doi = "10.1016/j.ceramint.2013.03.075"
}
Bobić, J., Vijatović-Petrović, M., Banys, J.,& Stojanović, B. D.. (2013). Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(7), 8049-8057.
https://doi.org/10.1016/j.ceramint.2013.03.075
Bobić J, Vijatović-Petrović M, Banys J, Stojanović BD. Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15. in Ceramics International. 2013;39(7):8049-8057.
doi:10.1016/j.ceramint.2013.03.075 .
Bobić, Jelena, Vijatović-Petrović, Mirjana, Banys, J, Stojanović, Biljana D, "Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15" in Ceramics International, 39, no. 7 (2013):8049-8057,
https://doi.org/10.1016/j.ceramint.2013.03.075 . .
