IMPURE ZIRCONIA ELECTRICAL-CONDUCTIVITY ENHANCEMENT BY RARE-EARTH MINORITY IONS IN THE Y2O3 RE(2)O(3) ZRO2 SYSTEM

被引：35

作者：

DESOUZA, DPF ^{[1
]}

CHINELATTO, AL ^{[1
]}

DESOUZA, MF ^{[1
]}

机构：

[1] USP,IFOSC,DEPT PHYS & MAT SCI,BR-560250 SAO CARLOS,SP,BRAZIL

来源：

JOURNAL OF MATERIALS SCIENCE | 1995年 / 30卷 / 17期

关键词：

D O I：

10.1007/BF00361517

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Impure zirconia stabilized by 12 wt% yttria concentrate (85 wt% Y2O3+15 wt% rare-earth (RE)) was found to have high grain and grain-boundary electrical conductivities. The influence of the RE on the segregation of impurities was studied for four different compositions. Microstructure features are evidence for the enhanced segregation of impurities due to RE ions. The increased grain and grain-boundary conductivities are a consequence of the segregation of impurities.

引用

页码：4355 / 4362

页数：8

共 45 条

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