MASSIVELY DEFECTIVE CRYSTALLINE SOLUTIONS IN FLUORITE-STRUCTURE OXIDES - SYSTEMS THO2-LN203 (LN=LA3+, GD3+,YB3+)

被引：28

作者：

DINESS, AM

ROY, R

机构：

[1] Office of Naval Research, Washington, DC

[2] Material Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania

来源：

JOURNAL OF MATERIALS SCIENCE | 1969年 / 4卷 / 07期

关键词：

D O I：

10.1007/BF00550117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Subsolidus phase relations have been defined in three representative rare earth sesquioxide (La2O3, Gd2O3, Yb2O3)-thoria systems over a wide range of compositions by X-ray methods (from phase detection and precision lattice parameter measurements). Characterisation of the point defects in these fluorite structure materials shows good agreement between calculated anion vacancy models and density values measured. Currently accepted crystal chemical generalisations were found to be inadequate to rationalise phase equilibria and crystalline solubility limits in these systems. © 1969 Chapman and Hall.

引用

页码：613 / &