THE ROLE OF 90-DEGREES DOMAIN-WALL DISPLACEMENTS IN FORMING PHYSICAL-PROPERTIES OF PEROVSKITE FERROELECTRIC CERAMICS

被引:46
|
作者
BONDARENKO, EI [1 ]
TOPOLOV, VY [1 ]
TURIK, AV [1 ]
机构
[1] ROSTOV DON STATE UNIV, INST PHYS, ROSTOV 344104, USSR
关键词
D O I
10.1080/07315179108203316
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A proposed model which takes into account an elastic interaction between a polydomain grain and a surrounding ceramic matrix under weak external mechanical stresses has been used for evaluating a contribution from 90° domain wall displacements to piezoelectric and elastic constants of the perovskite ferroelectric ceramics. A difference between experimental and averaged constants of BaTiO3 ceramics can be explained by the estimated contribution. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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页码:13 / 19
页数:7
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