A 1.8 K current feedthrough using YBCO bulk conductor for supplying 20 kA

K. Maehata, K. Ishibashi, T. Shintomi, A. Iwamoto, R. Maekawa, T. Mito

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)

抄録

Rectangle-shaped YBCO bulk conductors 20 mm wide, 140 mm long and 10 mm thick were manufactured from square-pillar-shaped YBCO bulk materials for supplying a 20 kA current into a pressurized superfluid cooling region at a temperature of 1.8 K. An assembled 1.8 K current feedthrough was mounted in the λ-plate of a pressurized superfluid cooling cryostat. Current-feed experiments into the 1.8 K region were carried out by operating the 20 kA current feedthrough. In the experiments, the transport current was kept at 20 kA for longer than 1200 s. Contact resistance and Joule heat generation in the joint region between the YBCO bulk conductors and the copper electrode were 1.45 nΩ and 0.72 W, respectively, in the 20 kA operation.

本文言語英語
ページ(範囲)770-776
ページ数7
ジャーナルPhysica C: Superconductivity and its applications
426-431
I
DOI
出版ステータス出版済み - 10月 1 2005
イベントProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
継続期間: 11月 23 200411月 25 2004

!!!All Science Journal Classification (ASJC) codes

  • 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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