Performance test of a refrigerator cooled magnet fabricated using Bi-2212 multilayer superconducting tapes

被引：9

作者：

Hasegawa, T

Hikichi, Y

Koizumi, T

Ohtani, N

Kumakura, H

Kitaguchi, H

Togano, K

机构：

[1] Showa Elect Wire & Cable Co Ltd, Kawasaki Ku, Kawasaki, Kanagawa 2108660, Japan

[2] Natl Res Inst Met, Tsukuba, Ibaraki 3300047, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.783454

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：

A stacked pancake coil was fabricated by Ag-alloy sheathed Bi-2212 multilayer tapes and tested using a refrigerator. The magnet consisted of ten double pancakes wound with 100m class tapes. The I-c values of the tapes varied from 80A to 150A at 4.2K and 10T because of the scattering of the thickness in the superconducting layers. The magnet carried a critical current of 57A at 12K and generated B-max of 1.4T in a 60mm bore. At 12K the magnet could operate with an operating current of 45A which corresponded to about 80% of I-c. Thermal runaway was not observed even with a ramp rate of 10T/min.

引用

页码：948 / 951

页数：4

共 6 条

[1] The effect of oxygen partial pressure during heat treatment on the microstructure of dip-coated Bi-2212/Ag and Ag alloy tapes [J].