Phase stability and electrical property of NiO-doped yttria-stabilized zirconia

被引：23

作者：

Kondo, H ^{[1
]}

Sekino, T ^{[1
]}

Kusunose, T ^{[1
]}

Nakayama, T ^{[1
]}

Yamamoto, Y ^{[1
]}

Niihara, K ^{[1
]}

机构：

[1] Osaka Univ, ISIR, Osaka 5670047, Japan

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 9-10期

基金：

日本学术振兴会;

关键词：

cubic zirconia; ionic conductivity; phase stability; electrical properties; Raman spectroscopy; nickel oxide; high-temperature stability;

D O I：

10.1016/S0167-577X(02)01042-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of NiO solid solution into yttria fully stabilized cubic zirconia (YSZ) on the phase stability and electrical properties of YSZ were investigated. Time-dependent conductivity change of NiO-doped YSZ at 1000 degreesC was also investigated. Raman spectra showed that weak tetragonal peaks in the YSZ monolith disappeared when NiO was added. In addition, the time-dependent conductivity of YSZ monolith sharply decreased after the first 30 h of annealing at 1000 degreesC, whereas NiO-doped YSZ did not show such decline. Therefore, the solid solution of NiO enhanced YSZ stability and produced time-dependent conductivity change with moderate time. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1624 / 1628

页数：5

共 13 条

[1] LATTICE-DYNAMICS AND LIGHT-SCATTERING IN HAFNIA AND ZIRCONIA [J].