PHASE-EQUILIBRIA IN Y-SR-CU-O PSEUDOTERNARY SYSTEM AT ELEVATED OXYGEN-PRESSURE OF 200 BAR

被引：9

作者：

CHANDRACHOOD, MR ^{[1
]}

NARWANKAR, PK ^{[1
]}

MORRIS, DE ^{[1
]}

SINHA, APB ^{[1
]}

机构：

[1] MORRIS RES INC,BERKELEY,CA 94704

来源：

PHYSICA C | 1992年 / 194卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90693-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the investigations on phase relations and phase compatibilities in Y-Sr-Cu-O pseudoternary at a temperature of 980-degrees-C and P(O2) = 200 bar. There is no evidence of a single phase quaternary compound. The SrO-CuO pseudobinary shows a remarkable difference as compared to its analog at 1 bar. Highly oxidized phases such as Sr2CUO3+delta and Sr14CU24O41 are found to be stabilized under an oxidizing atmosphere of 200 bar. Sr14CU24O41 has a solid solubility of Y for Sr up to a solubility limit of 30%. Partial melting is observed near the SrO vertex, where the presence of an unidentified quarternary peritectic is suggested by the appearance of additional XRD peaks.

引用

页码：205 / 210

页数：6

共 28 条

[1] THERMODYNAMIC STUDY OF THE CU-SR-O SYSTEM [J].