Electrical conduction mechanisms and effect of atmosphere annealing on the electrical properties of BiFeO3-BaTiO3 ceramics

doi:10.1016/j.jeurceramsoc.2019.07.054

SIC OpenIR

	Electrical conduction mechanisms and effect of atmosphere annealing on the electrical properties of BiFeO3-BaTiO3 ceramics
	Wang, Lei; Liang, Ruihong; Zhou, Zhiyong; Li, Ming; Gu, Min; Wang, Peng; Dong, Xianlin
	2019-12-01
Source Publication	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
Volume	39 Issue:15 Pages:4727
Subtype	Article
Abstract	BiFeO3-BaTiO3 (BFBT) is a promising high temperature piezoelectric ceramic system, as it possesses both high electromechanical properties and high Curie temperature. However, pure BFBT commonly exhibits large electrical conductivity at high temperatures, and there is considerable disagreement on its electrical conduction mechanism. Here we investigated the electrical conduction mechanisms of 0.70BiFeO(3)-0.30BaTiO(3) and 0.67BiFeO(3)-0.33BaTiO(3) ceramics by systematic impedance spectroscopy measurements as a function of oxygen partial pressure and temperature. Both ceramics exhibit higher electrical conductivity with an increase of oxygen partial pressure, consistent with p-type semiconductor behaviors. Particularly, reduced conductivity and improved ferroelectric remanent polarization can be obtained in BFBT when annealed in inert atmosphere. This study provides fundamental basis for preparing insulating and high performance BFBT ceramics.
Keyword	Ferroelectric Piezoelectric BiFeO3-BaTiO3 Electrical conductivity Impedance spectroscopy
DOI	10.1016/j.jeurceramsoc.2019.07.054
Language	英语
WOS Research Area	Materials Science
Publisher	ELSEVIER SCI LTD
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26707
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Wang, Lei,Liang, Ruihong,Zhou, Zhiyong,et al. Electrical conduction mechanisms and effect of atmosphere annealing on the electrical properties of BiFeO3-BaTiO3 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2019,39(15):4727.
APA	Wang, Lei.,Liang, Ruihong.,Zhou, Zhiyong.,Li, Ming.,Gu, Min.,...&Dong, Xianlin.(2019).Electrical conduction mechanisms and effect of atmosphere annealing on the electrical properties of BiFeO3-BaTiO3 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,39(15),4727.
MLA	Wang, Lei,et al."Electrical conduction mechanisms and effect of atmosphere annealing on the electrical properties of BiFeO3-BaTiO3 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 39.15(2019):4727.

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