EVOLUTION OF CRYSTALLINE ZIRCONIA STRUCTURE IN HEAT-TREATED CERIA STABILIZED ZIRCONIA GELS

被引：8

作者：

NAGARAJAN, VS ^{[1
]}

RAO, KJ ^{[1
]}

机构：

[1] INDIAN INST SCI,MAT RES CTR,BANGALORE 560012,KARNATAKA,INDIA

来源：

JOURNAL OF MATERIALS RESEARCH | 1991年 / 6卷 / 12期

关键词：

D O I：

10.1557/JMR.1991.2688

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transformation characteristics of CeO2 stabilized ZrO2 gels have been studied during heating in the temperature region 1273-1473 K. The nature of the major phase present changes drastically in this temperature region. The crystallite sizes of tetragonal and monoclinic ZrO2 crystallites have been calculated by x-ray line broadening. The change in the nature of the major phase observed during heat treatment seems to be related to the presence of a barrier for transformation from a metastable to a stable regime, which in turn appears to be related to the diffusion barriers of Ce4+ in ZrO2.

引用

页码：2688 / 2693

页数：6