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

doi:10.1016/j.jeurceramsoc.2019.07.054

	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
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2019-12-01
卷号	39 期号:15 页码:4727
关键词	Ferroelectric Piezoelectric BiFeO3-BaTiO3 Electrical conductivity Impedance spectroscopy
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2019.07.054
文献子类	Article
英文摘要	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.
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26707]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 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.