CRYSTALLINE OXIDE SOLID-SOLUTIONS IN OXYGEN POTENTIAL GRADIENTS

被引:92
作者
SCHMALZRIED, H
LAQUA, W
LIN, PL
机构
[1] Institut für physikalische Chemie, Technische Universität, D-3000 Hannover 1, SFB 126
来源
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 1979年 / 34卷 / 02期
关键词
D O I
10.1515/zna-1979-0211
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
The steady state demixing of an initially homogeneous oxide solid solution (A, B)O in an oxygen potential field is studied theoretically and experimentally. In case that DA > Db ≫ D0, the crystal is shifted with respect to the oxide lattice system toward the higher oxygen potential and is enriched in A at the side of the higher oxygen potential, while the transport of oxygen in the crystal is negligible. A numerical solution of the transport problem is presented, and the predicted effect is verified experimentally. © 1979, Walter de Gruyter. All rights reserved.
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页码:192 / 199
页数:8
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