STANDARD GIBBS ENERGIES OF FORMATION OF BACUO2, Y2CU2O5 AND Y2BACUO5

被引：18

作者：

AZAD, AM ^{[1
]}

SREEDHARAN, OM ^{[1
]}

JACOB, KT ^{[1
]}

机构：

[1] INDIAN INST SCI,DEPT MET,BANGALORE 560012,KARNATAKA,INDIA

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 12期

关键词：

D O I：

10.1007/BF01124688

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Gibbs' energies of formation of BaCuO2, Y2Cu2O5 and Y2BaCuO5 from component oxides have been measured using solid state galvanic cells incorporating CaF2 as the solid electrolyte under pure oxygen at a pressure of 1.01 x 10(5) Pa [GRAPHICS] Because the superconducting compound YBa2Cu3O7-delta coexists with any two of the phases CuO, BaCuO2 and Y2BaCuO5, the data on BaCuO2 and Y2BaCuO5 obtained in this study provide the basis for the evaluation of the Gibbs' energy of formation of the 1-2-3 compound at high temperatures.

引用

页码：3374 / 3379

页数：6

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