DOMINANT TYPE OF ATOMIC DISORDER IN ALPHA-AL2O3

被引：53

作者：

MOHAPATRA, SK ^{[1
]}

KROGER, FA ^{[1
]}

机构：

[1] UNIV SO CALIF,DEPT MAT SCI,LOS ANGELES,CA 90007

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1978年 / 61卷 / 3-4期

关键词：

D O I：

10.1111/j.1151-2916.1978.tb09249.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：

Comparison of the energy of formation per defect, as deduced from experimental results on α‐Al2O3 doped with donors and acceptors on the basis of various models, with theoretical values calculated by Dienes et al. for various disorder models shows closest correspondence of the exFrimentd values with the smallest theoretical values (obtained for Schottky disorder). This indicates that the theoretical results are reliable and that Schottky disorder is the major type of atomic disorder in α‐Al2O3. Creep data on Al2O3:Fe by Hollenberg and Gordon make it possible to determine the enthalpy of Frenkel disorder of Al. Copyright © 1978, Wiley Blackwell. All rights reserved

引用

页码：106 / 109

页数：4

共 19 条

[1]

BLUM JB, 1977, AM CERAM SOC BULL, V56, P303

[2] ELECTROCHEMICAL CELLS AND ELECTRICAL CONDUCTION OF PURE AND DOPED AL2O3 [J].