Large Electrostrictive Strain in ( Bi0.5Na0.5) TiO3-BaTiO3-( Sr0.7Bi0.2) TiO3 Solid Solutions

被引：170

作者：

Shi, Jing ^{[1
]}

Fan, Huiqing ^{[1
]}

Liu, Xiao ^{[1
]}

Bell, Andrew J. ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Univ Leeds, Sch Proc Environm & Mat, Inst Mat Res, Leeds LS2 9JT, W Yorkshire, England

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2014年 / 97卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

PIEZOELECTRIC BEHAVIOR; RAMAN-SPECTROSCOPY; PHASE-TRANSITIONS; PMN-PT; TEM; NA0.5BI0.5TIO3; CERAMICS;

D O I：

10.1111/jace.12712

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Relaxor ferroelectrics (0.94-x)(Bi0.5Na0.5)TiO3-0.06BaTiO(3-x)(Sr0.7Bi0.20.1)TiO3 (BNT-BT-xSBT) (0x0.5), were prepared by a solid-state reaction process, and their structures were characterized by the transmission electron microscopy and Raman spectroscopy. The BNT-BT-0.3SBT has a very high electrostrictive strain S=0.152% with hysteresis-free behavior, much more than the reported S in other ferroelectrics. S-P-2 profiles perfectly follow the quadratic relation, which indicates a purely electrostrictive effect with a high electrostrictive coefficient (Q(11)) of 0.0297m(4)/C-2. Even, its Q(11) keeps at a high level in the temperature range from ambient temperature to 180 degrees C. The field-induced large electrostrictive strain of BNT-BT-0.3SBT was attributed to the existence of ferroelectric nanodomains.

引用

页码：848 / 853

页数：6

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