Trapped magnetic field of a superconducting bulk magnet in high-Tc RE-Ba-Cu-O

被引：0

作者：

Fujimoto, H ^{[1
]}

Yoo, SI

Higuchi, T

Nakamura, Y

Kamijo, H

Nagashima, K

Murakami, M

机构：

[1] Railway Tech Res Inst, Tokyo 1858540, Japan

[2] Int Superconduct Technol Ctr, Superconduct Res Lab, Tokyo 1050023, Japan

[3] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 1999年 / 35卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Superconducting magnets made of high-T-c superconductors are promising for industrial applications. It is well known that REBa2Cu3O7-x and LRE (light rare-earth) Ba2Cu3O7-x superconductors prepared by melt processes have a high critical current density, J(c), at 77 K and high magnetic fields. Therefore, the materials are very prospective for high magnetic field application as a superconducting permanent/bulk magnet with liquid-nitrogen refrigeration. LREBaCuO bulks, compared with REBaCuO bulks, exhibit a larger J(c) in high magnetic fields and a much improved irreversibility field, H-irr, at 77 K. In this study, we discuss the possibility and trapped field properties of a superconducting bulk magnet, as well as the melt processing for bulk superconductors and their characteristic superconducting properties. One of the applications is a superconducting magnet for the future magnetically levitated (Maglev) train.

引用

页码：S241 / S244

页数：4

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