Construction of a 2-5 T class superconducting magnetic field generator with use of an Sm123 bulk superconductor and its application to high-magnetic field demanding devices

T. Oka, Y. Itoh, Y. Yanagi, M. Yoshikawa, H. Ikuta, U. Mizutani

研究成果: Conference article査読

58 被引用数 (Scopus)

抄録

Superconducting permanent magnet systems generating magnetic fields of 2-5 T have been constructed for the first time in the world by c-axis oriented Sm-Ba-Cu-O bulk superconductors fabricated through the melt processing as trapped field magnets. The trapped magnetic fields of 3.8 and 6.7 T have been produced on the bulk surface at 30 K by the pulsed field magnetization (PFM) and field cooling (FC) methods, respectively. The magnetic field in the open space outside the vacuum vessel exceeds 2.0 and 3.2 T when magnetized by the PFM and FC modes, respectively. It was found that the iteratively magnetizing pulsed-field operation with reducing amplitudes (IMRA method) is very effective in magnetizing high Jc bulk superconductors. This implies the superconducting permanent magnets can be used as high magnetic field generators in various practical applications.

本文言語English
ページ(範囲)101-106
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
335
1
DOI
出版ステータスPublished - 2000 6月
外部発表はい
イベント9th Japan-US Workshop on High-Tc Superconductors - Yamanashi, Jpn
継続期間: 1999 10月 131999 10月 15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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