TY  - CONF
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Banys, Juras
AU  - Stojanović, Biljana
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2647
AB  - The Aurivillius structure has capability to host ions of different size, so a large number of different dopants can be accommodated in the BaBi4Ti4O15 (BBT) lattice. It was detected that various substitutions of Bi3+ and Ti4+ ions can affect the change of microstructure and electrical properties of barium bismuth titanate ceramics. Doping of BBT ceramics is very important due to possibility to obtain materials with required characteristics.
In this work, pure and niobium and lanthanum doped barium bismuth titanate powders were prepared by conventional solid state method, according to formulas BaBi4-xLaxTi4O15 and BaBi4Ti4-5/4xNbxO15 (x=0.05). Obtained powders were uniaxially pressed and sintered at different temperature depending on the composition.
The influence of dopant type on structure change, grain size reduction and microstructure development was analyzed. XRD measurements showed formation of orthorhombic BBT crystal structure without presence of secondary phase in doped samples. Dopants had influence on shifting of temperature phase transition peaks to the lower temperatures, broadening of ε - T curves and increasing relaxor behavior of phase transition. Temperature dependence of the electrical conductivity pointed out that niobium as a donor dopant decrease conductivity and lanthanum as a isovalent dopant increase conductivity of BBT ceramics. Obtained results were analyzed in the frame of the influence of the grain and grain boundaries contribution to the dielectric behavior through impedance spectroscopy.
PB  - Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - 2nd Conference of The Serbian Ceramic Society, June 5-7, 2013 Belgrade, Serbia 2CSCS-2013
T1  - INFLUENCE OF DOPANTS ON BARIUM BISMUTH TITANATE ELECTRICAL PROPERTIES
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2647
ER  - 

@conference{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Banys, Juras and Stojanović, Biljana",
year = "2013",
abstract = "The Aurivillius structure has capability to host ions of different size, so a large number of different dopants can be accommodated in the BaBi4Ti4O15 (BBT) lattice. It was detected that various substitutions of Bi3+ and Ti4+ ions can affect the change of microstructure and electrical properties of barium bismuth titanate ceramics. Doping of BBT ceramics is very important due to possibility to obtain materials with required characteristics.
In this work, pure and niobium and lanthanum doped barium bismuth titanate powders were prepared by conventional solid state method, according to formulas BaBi4-xLaxTi4O15 and BaBi4Ti4-5/4xNbxO15 (x=0.05). Obtained powders were uniaxially pressed and sintered at different temperature depending on the composition.
The influence of dopant type on structure change, grain size reduction and microstructure development was analyzed. XRD measurements showed formation of orthorhombic BBT crystal structure without presence of secondary phase in doped samples. Dopants had influence on shifting of temperature phase transition peaks to the lower temperatures, broadening of ε - T curves and increasing relaxor behavior of phase transition. Temperature dependence of the electrical conductivity pointed out that niobium as a donor dopant decrease conductivity and lanthanum as a isovalent dopant increase conductivity of BBT ceramics. Obtained results were analyzed in the frame of the influence of the grain and grain boundaries contribution to the dielectric behavior through impedance spectroscopy.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "2nd Conference of The Serbian Ceramic Society, June 5-7, 2013 Belgrade, Serbia 2CSCS-2013",
title = "INFLUENCE OF DOPANTS ON BARIUM BISMUTH TITANATE ELECTRICAL PROPERTIES",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2647"
}

Bobić, J., Vijatović Petrović, M., Banys, J.,& Stojanović, B.. (2013). INFLUENCE OF DOPANTS ON BARIUM BISMUTH TITANATE ELECTRICAL PROPERTIES. in 2nd Conference of The Serbian Ceramic Society, June 5-7, 2013 Belgrade, Serbia 2CSCS-2013
Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2647

Bobić J, Vijatović Petrović M, Banys J, Stojanović B. INFLUENCE OF DOPANTS ON BARIUM BISMUTH TITANATE ELECTRICAL PROPERTIES. in 2nd Conference of The Serbian Ceramic Society, June 5-7, 2013 Belgrade, Serbia 2CSCS-2013. 2013;.
https://hdl.handle.net/21.15107/rcub_rimsi_2647 .

Bobić, Jelena, Vijatović Petrović, Mirjana, Banys, Juras, Stojanović, Biljana, "INFLUENCE OF DOPANTS ON BARIUM BISMUTH TITANATE ELECTRICAL PROPERTIES" in 2nd Conference of The Serbian Ceramic Society, June 5-7, 2013 Belgrade, Serbia 2CSCS-2013 (2013),
https://hdl.handle.net/21.15107/rcub_rimsi_2647 .