CHEMICAL INTERACTION OF BAO-CUO-RICH MELTS WITH Y2O3

被引：12

作者：

PELLERIN, N

JOUAN, G

ODIER, P

机构：

[1] C.N.R.S., Orleans

来源：

JOURNAL OF MATERIALS RESEARCH | 1993年 / 8卷 / 01期

关键词：

D O I：

10.1557/JMR.1993.0018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemical interaction between ceramic Y2O3 and Y-Ba-Cu-0 liquid with composition close to that of the ternary eutectic is discussed. Intense interaction is observed in the range 930-960-degrees-C that results in the formation Of Y2BaCuO5 above 940-degrees-C and YBa2Cu3O6+x plus CuO below 940-degrees-C. At the interface with Y2O3 there is an additional portion containing Y2Cu2O5 Or YCuO2. This temperature threshold is exactly that of the peritectic reaction Y2BaCuO5 + L(p1) --> YBa2Cu3O6+x + CuO which then appears to control this chemical interaction. The microstructure of the transformed area is oriented in a way that may be used for texturing or crystal growing.

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页码：18 / 23

页数：6

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