Large electrostriction near the solubility limit in BaTiO3-CaTiO3 ceramics

被引：169

作者：

Wang, XS ^{[1
]}

Yamada, H

Xu, CN

机构：

[1] Japan Sci & Technol Agcy, PRESTO, 4-1-8 Honcho Kawaguchi, Kawaguchi, Saitama 3320012, Japan

[2] Natl Inst Adv Ind Sci & Technol, Saga 8410052, Japan

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 02期

关键词：

D O I：

10.1063/1.1850598

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This study prepared (1-x)BaTiO3-xCaTiO(3) (x=0.20-1.0) ceramics. Their structural and electric properties were analyzed. High electrostrictive strain of 0.22%, higher by 157% as compared to BaTiO3 ceramic, was obtained near the solubility limit in the side of composite (x=0.23), which is a diphasic ceramic composed of a ferroelectric tetragonal Ba0.8Ca0.2TiO3 solid solution and a normal dielectric orthorhombic Ba0.07Ca0.93TiO3 solid solution. This enhanced electrostriction resulted from the coupling of the large ionic polarization in Ba0.07Ca0.93TiO3 with the non-180degrees domains in Ba0.8Ca0.2TiO3 during the external electric field exertion. (C) 2005 American Institute of Physics.

引用

页码：022905 / 1

页数：3

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