TEMPERATURE-DEPENDENCE OF ELECTRICAL-CONDUCTIVITY IN POLYCRYSTALLINE TIN OXIDE

被引：23

作者：

LEE, JH ^{[1
]}

PARK, SJ ^{[1
]}

HIROTA, K ^{[1
]}

机构：

[1] NATL INST RES INORGAN MAT,TSUKUBA,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 09期

关键词：

electrical conductivity; polycrystalline materials; pores; temperature dependence; tin oxide;

D O I：

10.1111/j.1151-2916.1990.tb06764.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 electrical conductivity of polycrystalline SnO2 in air was measured between 400° and 1400°C using samples prepared by hot isostatic pressing and normal sintering. The apparent activation energy for conduction above 800°C was 1.3 to 1.4 eV in the hot isostatically pressed sample and 1.9 to 2.0 eV in the normally sintered sample. This difference can be interpreted as a result of the pore contributing an additional blocking effect to conduction. Also we found that the electrical conductivity above 1150°C bent down slightly from the linear regime when using a cumulative slope model. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2771 / 2774

页数：4

共 13 条

[1] STUDY OF SOLID ELECTROLYTE POLARIZATION BY A COMPLEX ADMITTANCE METHOD [J].