Fundamental study of MgB2 superconducting coil for storage devices

被引：0
|
作者：
Onji T. [1 ]
Ishihara A. [1 ]
Kobayashi Y. [1 ]
Fukumoto Y. [1 ]
Tomita M. [1 ]
Hamajima T. [2 ]
机构：
[1] Research and Development Promotion Division, Applied Superconductivity Laboratory, Materials Technology Division
来源：
Quarterly Report of RTRI (Railway Technical Research Institute) | 2019年 / 60卷 / 03期
关键词：
Characteristic evaluation; Manufacturing technology; Power storage device; Superconducting coil; Superconducting wire;
D O I：
10.2219/rtriqr.60.3_190
中图分类号：
学科分类号：
摘要：
The authors carried out a basic study on a power storage coil made of MgB2 superconducting wires which was expected to require less cooling and lower manufacturing costs. First, for manufacturing the storage coil, the basic characteristics of MgB2 superconducting wire were evaluated. The characteristics at 20 K under 1.5 T were a critical current of 170 A for the in-situ MgB2 wire and 200 A for the ex-situ MgB2 wire. Based on these results, MgB2 conductors and prototype storage coils were produced and their performance was evaluated. The prototype was successfully energized to 600 A under 1.5 T at less than 25 K, which are the basic requirements for several 10 kJ class coils, and there was no significant deterioration through conductor and coil processing. © 2019 Ken-yusha Inc.. All rights reserved.
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页码：190 / 195
页数：5
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