Effect of temperature on electric fatigue behaviour of PLZT ferroelectric ceramics

被引：0
|
作者：
Chen, Zhiwu
Cheng, Xuan
Zhang, Ying
机构：
[1] South China Univ. of Technology, Guangzhou 510640, China
[2] Xiamen Univ., Xiamen 361005, China
来源：
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2004年 / 33卷 / 08期
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摘要：
The effect of temperature on electric fatigue of PLZT ferroelectric ceramics was studied. The research results show that the effect of temperature on electric fatigue behaviour of PLZT is significant. The higher the temperature is, the slower the fatigue velocity is. The results of temperature dependence of the dielectric constant and microstructure observation by SEM shows that fatigue mechanism is mainly domain wall pining and intergranular microcracking initiated by the internal stress concentration.
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页码：847 / 851
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