AC ELECTRICAL-PROPERTIES OF COMPOSITE SOLID ELECTROLYTES

被引：96

作者：

NAN, CW

SMITH, DM

机构：

[1] UNM, NSF Center for Micro-Engineered Ceramics, The University of New Mexico, Albuquerque

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1991年 / 10卷 / 02期

关键词：

D O I：

10.1016/0921-5107(91)90115-C

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An improved effective-medium model to describe a.c. electrical properties of composite electrolytes is proposed in the light of its microstructure. Three characteristic volume fractions, two percolation thresholds (v2', v2") for percolation of interface bonds and disruption of conducting paths, and v2* corresponding to the maximum enhancement in conductivity, are obtained from this model. The effect of microstructure parameters, such as grain size and size distribution, and grain volume fraction on the three characteristic volume fractions and a.c. electrical properties is discussed in detail. The results obtained by the theoretical model are consistent with the present experimental results.

引用

页码：99 / 106

页数：8

共 23 条

[1] A RANDOM AC NETWORK MODEL FOR DISPERSED IONIC CONDUCTORS [J].