Time dependence of effective properties of polycrystalline ferroelectric ceramics

被引：3
|
作者：
Cheng, JQ [1 ]
Wang, B [1 ]
Du, SY [1 ]
机构：
[1] Harbin Inst Technol, Res Ctr Composite Mat, Harbin 150001, Peoples R China
来源：
MECHANICS RESEARCH COMMUNICATIONS | 1999年 / 26卷 / 04期
关键词：
D O I：
10.1016/S0093-6413(99)00041-5
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, based on Merz[7] experimental results and classical nucleation theory, a micromechanics statistical model is proposed to describe the relation between the special microstructure-level evolution phenomena-domain switching and macro-response. The polycrystalline ferroelectric ceramics treated as a composition of switched domain and unswitched domain, the approaches of Eshelby's equivalent inclusion and Mori-Tanaka's mean field theory are used to analyze and predict its effective electroelastic properties. The model can incorporate the effects of time dependence of domain switching and shape pf individual crystalline. To the BaTiO3 polycrystalline ceramics, the analytical results are in good agreement with the experimental results.
引用
收藏
页码：407 / 414
页数：8
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