THERMODYNAMIC INSTABILITY OF THE YBA2CU3O7-X PHASE AT THE 1-2-3 COMPOSITION

被引：24

作者：

GARZON, FH

RAISTRICK, ID

GINLEY, DS

HALLORAN, JW

机构：

[1] SANDIA NATL LABS,ALBUQUERQUE,NM 87185

[2] CPS SUPERCOND CORP,MILFORD,MA 01757

来源：

JOURNAL OF MATERIALS RESEARCH | 1991年 / 6卷 / 05期

关键词：

D O I：

10.1557/JMR.1991.0885

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured enthalpies of formation of YBa2Cu3O7-x, Y2BaCuO5, YBa2Cu4O8, and BaCuO2 using high precision isothermal solution calorimetry. Thermodynamic analysis of the calorimetric data indicates that YBa2Cu3O7-x at the pure-phase composition (1:2:3 cation ratio) is metastable at congruent-to 873 K and 1 atm P(O)2.

引用

页码：885 / 887

页数：3

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