ELECTRIC-FIELD-INDUCED FATIGUE-CRACK GROWTH IN PIEZOELECTRICS

被引：234

作者：

CAO, HC

EVANS, AG

机构：

[1] Materials Department, College of Engineering, University of California, Santa Barbara, California

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1994年 / 77卷 / 07期

关键词：

D O I：

10.1111/j.1151-2916.1994.tb07051.x

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：

When subjected to large alternating electric fields, ferroelectric ceramics may experience cracking and mechanical degradation. This article describes an experimental procedure for characterizing crack extension from preexisting flaws in such materials subject to high-amplitude, alternating electric fields. A new mode of electric-field-induced fatigue crack growth is identified. Fracture mechanics concepts are applied to interpret the observed cracking.

引用

页码：1783 / 1786

页数：4

共 14 条

[1]

Berlincourt D, 1981, J AM CERAM SOC, V70, P1506

[2]

CROSS LE, 1989, 110TH P ANN M AME SA, P12

[3]

FRIEMAN SW, 1986, FRACTURE MECHANCIS C, V8, P176

[4] PLZT ELECTROOPTIC MATERIALS AND APPLICATIONS - A REVIEW [J].