高温超電導電流リード　　方向凝固材料を用いた電流リード開発

• 和泉 輝郎

  財団法人　国際超電導産業技術研究センター　超電導工学研究所　線材研究開発部

書誌事項

タイトル別名

• Development of Current Leads using YBCO Superconducting Rods by Unidirectional Solidification

抄録

The development of a current leads using YBCO superconducting rods was reviewed. The textured YBCO rods were fabricated by a zone-melt process. A high I_c value of 2,000 A was obtained by the structural control of texturing and pinning centers by Y211 particles. The highly textured structure was realized by the growth conditions of high G/R (G: Temperature Gradient and R: Growth Rate). The fine Y211 particles were obtained by the addition of the Pt powder to reduce a coarsening rate of Y211 in the liquid. The current leads were formed by the development of packaging technique for high mechanical strength and connection with the electrodes. Concerning the mechanical strength, no degradation of I_c performance due to a vibration of 15 G was achieved. Consequently, the current leads with not only high superconducting current but low thermal invasion and Joule heating was realized. It was confirmed that the total heat load could be suppressed to be 0.21 W/pair for 500 A where the high and low temperatures were controlled to be 80 and 20 K, respectively.

収録刊行物

• 低温工学

  低温工学 39 (3), 90-96, 2004

  公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)

キーワード

• current lead
• YBCO
• directional solidification
• contact resistance
• superconductors

詳細情報

• CRID: 1390282679590816640
• NII論文ID: 130004457133
• NII論文ID: 30025770153
• DOI: 10.2221/jcsj.39.90
• COI: 1:CAS:528:DC%2BD2cXjs1Citrs%3D
• ISSN: 18800408
• ISSN: 03892441
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可