DIFFUSION OF OXYGEN IN SELECTED MONOCRYSTALLINE RARE EARTH OXIDES

被引：68

作者：

BERARD, MF

WIRKUS, CD

WILDER, DR

机构：

[1] Institute for Atomic Research, Iowa State University, Department of Ceramic Engincering, Ames, Iowa

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1968年 / 51卷 / 11期

关键词：

D O I：

10.1111/j.1151-2916.1968.tb12636.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The diffusion of oxygen in monocrystalline ScaO3, YzO3, Dy,O2, HosO3, Er2O3, Tm2O2, and Lu2O3 was measured by a thermobalance technique. The reoxidation of partially reduced crystals of these materials was treated as a diffusion‐controlled process with a moving boundary. Large diffusion coefficients and fairly low activation energies were found for this process, in agreement with a proposed migration mechanism which involves the inherently defective anion sublattice of these materials. Copyright © 1968, Wiley Blackwell. All rights reserved

引用

页码：643 / &

共 14 条

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