Fatigue-free PZT-based nanocomposites

被引：4

作者：

Hwang, HJ ^{[1
]}

Tajima, K

Sando, M

Niihara, K

机构：

[1] Natl Ind Res Inst Nagoya, Nagoya, Aichi 4628510, Japan

[2] Fine Ceram Res Assoc, Synergy Ceram Lab, Nagoya, Aichi 4628510, Japan

[3] Osaka Univ, ISIR, Osaka 5670047, Japan

来源：

SCIENCE OF ENGINEERING CERAMICS II | 1999年 / 2卷

关键词：

fatigue; lead zirconate titanate; nanocomposite; nano particle;

D O I：

10.4028/www.scientific.net/KEM.161-163.431

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：

The goal of this study is to fabricate fatigue-free piezoelectrics-based nanoomposites. Lead zirconate titanate (PZT) and metallic platinum (Pt) were selected as a matrix and secondary phase dispersoid. Fine Pt particles were homogeneously dispersed in the PZT matrix. Fatigue properties of the unpoled PZT-based nanocomposite under electrical cyclic loading were investigated. The electrical-filed-induced crack growth was monitored by an optical microscope, and it depended on the number of cycles the sample was subjected to. Resistance to fatigue was significantly enhanced in the nanocomposite. The excellent fatigue behavior of the PZT/Pt nanocomposites may result from the grain boundary strenghening due to the interaction between the matrix and Pt particles.

引用

页码：431 / 434

页数：4

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