Mixed electromechanical fatigue in lead zirconate titanate

被引：25

作者：

Lupascu, DC ^{[1
]}

Aulbach, E ^{[1
]}

Rödel, J ^{[1
]}

机构：

[1] TH Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 09期

关键词：

D O I：

10.1063/1.1563841

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of mixed fatigue by phase-shifted electrical and mechanical loading on the material properties of a commercial lead-zirconate-titanate ceramic are presented. Both the loss in switchable polarization and strain are more pronounced than in purely unipolar electric, but much less than in bipolar electric fatigue. Fatigue-induced offsets are described. Point defect motion and point defect agglomeration are discussed as sources of fatigue in ferroelectrics. Fatigue microcracking occurs at the interface to the load pistons irrespective of Poisson's ratio of the piston. (C) 2003 American Institute of Physics.

引用

页码：5551 / 5556

页数：6

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