Phase formation in the ZrO2-HfO2-Gd2O3 and Zro2-HfO2-Yb2O3 systems

被引：22

作者：

Karaulov, AG ^{[1
]}

Zoz, EI ^{[1
]}

机构：

[1] AS Berezhnoi Ukrainian Res Inst Refractories, Kharkov, Ukraine

来源：

REFRACTORIES AND INDUSTRIAL CERAMICS | 1999年 / 40卷 / 11-12期

关键词：

Solid Solution; Gd2O3; Hafnium Oxide; Fluorite Type; Pyrochlore Type;

D O I：

10.1007/BF02762623

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 formation of phases and properties of solid solutions and Gd2Zr2O7 and Yb4Zr3O12 chemical compounds in the ZrO2 - Gd2O3 and ZrO2 - Yb2O3 systems are studied. The compounds undergo a phase transformation of the type "order - disorder" and melt incongruently. The data on the parameters of the elementary cells, the melting temperatures, and the TCLE of phases in the ZrO2 - Gd2O3 and ZrO2 - Yb2O3 systems are presented. These data are compared with similar data for phases based on HfO2. The considered solid solutions are shown to be promising for the production of high-temperature, heat-insulating ceramics for growing single crystals.

引用

页码：479 / 483

页数：5