Mechanism of resistivity gradient in monolithic PZT ceramics

被引：9

作者：

Jin, DR ^{[1
]}

Meng, ZY ^{[1
]}

Zhou, F ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2003年 / 99卷 / 1-3期

关键词：

FGM; PZT ceramics; resistivity gradient and piezoelectric actuator;

D O I：

10.1016/S0921-5107(02)00425-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interdiffusion of Fe3+ and La3+ doping ions in the PZT perovskites was examined. The distribution of doping ions, crystal structures and microstructures was characterized by using Electron Probe Microbeam Analysis (EPMA), X-ray diffractormeter (XRD) and Optical Microscope (OM), respectively. The diffusion behavior of doping ions was quantitatively investigated by using Fick' second law and qualitatively examined from the viewpoint of ion transfer. The forming mechanism of the resistivity and piezoelectric property gradients was investigated. It was verified that the interdiffusion of La3+ and Fe3+ ions occurs via vacancy mechanism on the A-site and B-site in the PZT perovskite structure, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：83 / 87

页数：5

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