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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 PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume39Issue:15Pages:4727
SubtypeArticle
AbstractBiFeO3-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.
KeywordFerroelectric Piezoelectric BiFeO3-BaTiO3 Electrical conductivity Impedance spectroscopy
DOI10.1016/j.jeurceramsoc.2019.07.054
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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