Contact characteristics for YBCO bulk superconductors

Naoki Yamamoto, Tomokazu Sakai, Koichiro Sawa, Masaru Tomita, Masato Murakami

研究成果: Conference article査読

9 被引用数 (Scopus)

抄録

We have studied the contact characteristics of two resin-impregnated YBCO (a composite of YBa2Cu3Oy and Y 2BaCuO5) bulk superconductors in mechanical contact. A switching phenomenon could be observed at a threshold current or a transfer current value in the V-I curves of the YBCO contact. The transfer current exceeded the previous value of 13.5 A at 77 K in the contact when the sample surfaces were carefully polished. The present results suggest that a pair of YBCO blocks might be applicable to the mechanical persistent current switch for superconducting magnetic energy storage and other superconducting systems run in a persistent current mode.

本文言語English
ページ(範囲)729-733
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
392-396
PART 1
DOI
出版ステータスPublished - 2003 10月
外部発表はい
イベントProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
継続期間: 2002 11月 112002 11月 13

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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