ADMITTANCE-CURVE-FITTING METHOD FOR SEMICONDUCTIVE PIEZOELECTRIC CERAMICS

被引：11

作者：

TSURUMI, T

ICHIHARA, T

ASAGA, K

DAIMON, M

机构：

[1] Department of Inorganic Materials, faculty of Engineering, Tokyo Institute of Technology, Tokyo

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 05期

关键词：

dielectric materials; lead zirconate titanate; perovskites; piezoelectric materials; semiconductors;

D O I：

10.1111/j.1151-2916.1990.tb05200.x

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 admittance‐curve‐fitting method is proposed to determine material coefficients of semiconductive piezoelectric ceramics. In this method, the frequency dependence of admittance of a plate resonator is calculated around the resonance frequency, and the piezoelectric, elastic, and dielectric coefficients in the theoretical formula are refined to fit the observed data. The result of a simulation using four types of hypothetical ceramics with different conductivities and electromechanical coupling factors indicates that various constants determined by this method are more accurate than those by the conventional method. The fitting method is applied practically to the PZT ceramics and Bi,K‐doped PZT ceramics which show semiconductivity. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：1330 / 1333

页数：4

共 16 条

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