Process of solid state reaction between doped ceria and zirconia

被引：60

作者：

Eguchi, K ^{[1
]}

Akasaka, N ^{[1
]}

Mitsuyasu, H ^{[1
]}

Nonaka, Y ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Engn Sci, Dept Mol & Mat Sci, Kasuga, Fukuoka 8168580, Japan

来源：

SOLID STATE IONICS | 2000年 / 135卷 / 1-4期

关键词：

ceria; zirconia; solid state reaction; fluorite; electrical conductivity;

D O I：

10.1016/S0167-2738(00)00416-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid state reaction at an interface between doped zirconia and ceria has been analyzed by X-ray diffraction and EDX. The solid state reaction between Y-doped ceria and Y-stabilized zirconia occurred on heating at 1300 degreesC or higher temperatures to form a single cubic fluorite Y-doped ceria-zirconia phase. The reaction proceeded by preferential migration of the Ce component to the zirconia lattice. The reaction significantly lowered the electrical conductivity. The reaction between Sm-doped ceria and Y-stabilized zirconia, on the other hand, proceeded by migration of every component equally, i.e. preferential migration of a specific component was hardly observed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：589 / 594

页数：6

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