High electrostrain with high Curie temperature in BiFeO3-BaTiO3-based ceramics

doi:10.1016/j.scriptamat.2019.01.028

SIC OpenIR

	High electrostrain with high Curie temperature in BiFeO3-BaTiO3-based ceramics
	Wang, Lei; Liang, Ruihong; Zhou, Zhiyong; Dong, Xianlin
	2019-04-15
Source Publication	SCRIPTA MATERIALIA
ISSN	1359-6462
Volume	164 Pages:62
Subtype	Article
Abstract	Here, we report a high unipolar electrostrain (0.45%) with a high Curie temperature (T-C = 410 degrees C) in lead-free (1-x)(0.67BiFeO(3)-0.33BaTiO(3))-xSr(0.8)La(0.1)square 0.1TiO2.95 (square represents the A-site vacancy) piezoceramics with x = 0.02. Sr0.8La0.1 square 0.1TiO2.95 was introduced to construct a relaxor ferroelectric state. The obtained unipolar strain was thermally stable, and the variation from room temperature to 100 degrees C was only 10%. Systematic electromechanical and Raman spectra measurements revealed a composition driven phase transition from classical ferroelectric to relaxor ferroelectric phases and distorted internal stress field. This work provides a novel strategy to obtain high electrostrain in high temperature piezoceramics. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keyword	BiFeO3-based ceramics Electrostrain High T-C Vancancy
DOI	10.1016/j.scriptamat.2019.01.028
Language	英语
WOS Research Area	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27181
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. High electrostrain with high Curie temperature in BiFeO3-BaTiO3-based ceramics[J]. SCRIPTA MATERIALIA,2019,164:62.
APA	Wang, Lei,Liang, Ruihong,Zhou, Zhiyong,&Dong, Xianlin.(2019).High electrostrain with high Curie temperature in BiFeO3-BaTiO3-based ceramics.SCRIPTA MATERIALIA,164,62.
MLA	Wang, Lei,et al."High electrostrain with high Curie temperature in BiFeO3-BaTiO3-based ceramics".SCRIPTA MATERIALIA 164(2019):62.

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