DEVELOPMENT OF EXCESS Y2BACUO5 DURING DIRECTIONAL GROWTH OF YBA2CU3OX

被引：4

作者：

KIM, W ^{[1
]}

SHIM, G ^{[1
]}

JANG, D ^{[1
]}

SUH, C ^{[1
]}

NO, K ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL, TAEJON, SOUTH KOREA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 12A期

关键词：

HIGH-T(C) SUPERCONDUCTOR; YBA2CU3OX SYSTEM; DIRECTIONAL SOLIDIFICATION; EXCESS Y2BACUO5; BA-CU RICH LIQUID;

D O I：

10.1143/JJAP.31.L1668

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting compound YBa2Cu3Ox was prepared by directional solidification. Composition analysis revealed that directionally grown YBa2Cu3Ox was heavily enriched with yttrium. When part of YBa2Cu3Ox melted to Y2BaCuO5 and liquid, Ba-Cu rich liquid wetted the surfaces and pores of adjacent YBa2Cu3Ox. As a result, the melt zone contained Y2BaCuO5 in excess. These excess Y2BaCuO5 particles are believed to eliminate the unreacted liquid phases which otherwise remain impairing superconducting properties.

引用

页码：L1668 / L1670

页数：3

共 6 条

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