MICROSTRUCTURES AND JC-B CHARACTERISTICS OF AG-SHEATHED BI-BASED SUPERCONDUCTING WIRES

被引：116

作者：

UEYAMA, M

HIKATA, T

KATO, T

SATO, K

机构：

[1] Osaka Research Laboratories, Sumitomo Electric Industries, Ltd., Osaka, 554, 1-1-3 Shimaya, Konohanaku

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 8A期

关键词：

AG-SHEATHED SUPERCONDUCTING WIRE; (BI; PB)-SR-CA-CU-O; CRITICAL CURRENT DENSITY; MICROSTRUCTURE; JC-B CHARACTERISTICS;

D O I：

10.1143/JJAP.30.L1384

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We prepared silver-sheathed BiPbSrCaCuO wires by the powder-in-tube method. Maximum critical current densities at 77.3 K were 5.4 x 10(4) A.cm-2 in a zero magnetic field, 4.2 x 10(4) A.cm-2 at 0.1 T and 1.2 x 10(4) A.cm-2 at 1 T. At 77.3 K, as the J(c) improves, the history effects decrease. J(c) and J(c)-B enhancements are due to the decrease and dispersion of nonsuperconducting phases, and to grain boundary improvements.

引用

页码：L1384 / L1386

页数：3

共 5 条

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[2]

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[5] HIGH-TC PHASE PROMOTED AND STABILIZED IN THE BI, PB-SR-CA-CU-O SYSTEM [J].

TAKANO, M ;

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (06) :L1041-L1043

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