CUBIC FIELD IN SYSTEM CAO-ZRO2

被引：73

作者：

GARVIE, RC

机构：

[1] College Park Metallurgy Research Center, Bureau of Mines, United States Department of the Interior, College Park, Maryland

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1968年 / 51卷 / 10期

关键词：

D O I：

10.1111/j.1151-2916.1968.tb13320.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：

The range of existence of the cubic phase in the system CaO‐ZrO2 was determined at temperatures from 1300° to 1700°C, using the lattice parameter method. This technique could not be used at higher temperatures because of anomalous changes in the lattice parameter. The possibility of the existence of a compound, CaZr4O9, occurring at 20 mole % CaO, was inferred from X‐ray data. The (hypothesized) compound appeared to undergo a phase transformation at about 1650°C. The cubic field was widened when CaCO2 was substituted for CaO as a reagent, probably because of the formation of an intermediate active oxide. This widening of the field may shed light on some of the discrepancies in the literature. Copyright © 1968, Wiley Blackwell. All rights reserved

引用

页码：553 / &

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