SUPERCONDUCTING CURRENT LEADS OF Bi-BASED OXIDE

被引：27

作者：

Yamada, Y. ^{[1
]}

Yanagiya, T. ^{[1
]}

Hasebe, T. ^{[1
]}

Jikihara, K. ^{[1
]}

Ishizuka, M. ^{[1
]}

Yasuhara, S. ^{[1
]}

Ishihara, M. ^{[1
]}

机构：

[1] Sumitomo Heavy Ind Ltd, Hitatsuka Res Labs, 63-30 Yuhigaoka, Hiratsuka, Kanagawa 254, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233846

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The application of Bi-based oxide superconducting bulk to current leads for various types of superconducting devices was researched. The bulk we manufactured was in the form of a cylindrical tube (ID: 10 to 30 mm; wall thickness: 1.2 to 1.4 mm; length: 200 mm) and had a composition (Bi+Pb):Sr:Ca:Cu = 2:2:2:3. Values greater than 1000 A/cm(2) were obtained for critical current density at 77 K under self-magnetic field. Maximum value of critical current was 1600 A. With tubular bulk leads, we measured heat leakage between 77 K and 4.2 K while passing a current of DC 800A. Heat leakage of a bulk lead pair was measured to be 0.16 W, less than one-tenth of that of conventional gas-cooled Cu leads.

引用

页码：923 / 926

页数：4

共 6 条

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