Negligible oxygen liberation during bipolar electric cycling of ferroelectric lead zirconate titanate ceramics

被引：11
|
作者：
Nuffer, J
Lupascu, DC
Rödel, J
Schroeder, M
机构：
[1] TH Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
[2] TH Darmstadt, Inst Phys Chem, D-64287 Darmstadt, Germany
来源：
APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 22期
关键词：
D O I：
10.1063/1.1421089
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The long-standing question whether or not oxygen gas is liberated from the perovskite lattice during fatigue of ferroelectric lead zirconate titanate ceramics is addressed. During cycling, the surrounding gas atmosphere of the sample was analyzed continuously by a mass spectrometer. It was found that, in contrast to previous statements in the literature, the oxygen detected originates from air dissolved in the surrounding liquid. An upper limit for oxygen liberation from the sample is given. We conclude that all mechanistical approaches for ferroelectric fatigue based on oxygen liberation are in need of revision. (C) 2001 American Institute of Physics.
引用
收藏
页码：3675 / 3677
页数：3
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