THE EFFECT OF TEMPERATURE ON BIPOLAR ELECTRICAL FATIGUE BEHAVIOR OF LEAD ZIRCONATE TITANATE CERAMICS

被引：7

作者：

Pojprapai, Soodkhet ^{[1
]}

Glaum, Julia ^{[2
]}

机构：

[1] Suranaree Univ Technol, Sch Ceram Engn, Nakorn Ratchsima 30000, Thailand

[2] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

FUNCTIONAL MATERIALS LETTERS | 2012年 / 5卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

Ferroelectric; electrical fatigue; temperature effect; OXYGEN-VACANCY; POLARIZATION; MECHANISM; STRAIN;

D O I：

10.1142/S1793604712500270

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ferroelectric fatigue behavior of lead zirconate titanate was investigated under different temperatures (room temperature and 125 degrees C). A bipolar electric field of +/- 1.5 kV/mm at a frequency of 50Hz was applied to the samples up to 2 x 10(5) cycles. A markedly different fatigue rate was observed dependent on temperature. The fatigue degradation represented by the loss of polarization and strain increases with the number of cycles and is more pronounced in the case of the lower temperature. Brennan's model based on a logarithmic fatigue rate is applied to explain the temperature effect on fatigue behavior due to the pinning effect.

引用

页数：5

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