ANION ORDERING IN AGED STABILIZED BISMUTH OXIDE

被引：41

作者：

JIANG, N

BUCHANAN, RM

STEVENSON, DA

NIX, WD

LI, JZ

YANG, JL

机构：

[1] STANFORD UNIV,DEPT MAT SCI & ENGN,STANFORD,CA 94305

[2] CHINA INST ATOM ENERGY,BEIJING 102413,PEOPLES R CHINA

来源：

MATERIALS LETTERS | 1995年 / 22卷 / 5-6期

关键词：

D O I：

10.1016/0167-577X(95)00271-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Neutron diffraction was performed on samples of the oxygen ion conductor (Bi2O3)(0.80)(Er2O3)(0.20). Results revealed a structural change in an ''aged'' sample, which had been annealed at 500 degrees C with resulting oxygen ion conductivity degradation. The essential change is the displacement of nearly all anions from tetrahedral 8c sites to 32f sites along [111] directions. Taking this displacement into account, a structural model for oxide vacancy ordering is proposed.

引用

页码：215 / 219

页数：5

共 16 条

[1]

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[2] STRUCTURAL AND DYNAMIC STUDIES OF DELTA-BI2O3 OXIDE ION CONDUCTORS .1. THE STRUCTURE OF (BI2O3)1-X(Y2O3)X AS A FUNCTION OF X AND TEMPERATURE [J].