NEUTRON-SCATTERING EVIDENCE FOR FAST IONIC OXYGEN DIFFUSION IN THE HIGH-TEMPERATURE PHASES OF LA2O3

被引：35

作者：

ALDEBERT, P ^{[1
]}

DIANOUX, AJ ^{[1
]}

TRAVERSE, JP ^{[1
]}

机构：

[1] UNIV TOULOUSE 3,EQUIPE RECH ENERGIE,F-31077 TOULOUSE,FRANCE

来源：

JOURNAL DE PHYSIQUE | 1979年 / 40卷 / 10期

关键词：

Compendex;

D O I：

10.1051/jphys:0197900400100100500

中图分类号：

学科分类号：

摘要：

Evidence for fast oxygen diffusion in the H and X high temperature phases of La//2O//3 is presented from neutron diffraction background analysis and neutron quasielastic scattering data. In the X phase at 2 160 degree C the translational self diffusion coefficient is of the order of 3 multiplied by 10** minus **5 cm**2/s and the mean time between jumps on neighboring tetrahedral sites is around 1. 4 multiplied by 10** minus **1**2 s. These are typical values for good superionic conductors.

引用

页码：1005 / 1012

页数：8

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