YBCO酸化物高温超伝導体のカレントリード特性

DOI

書誌事項

タイトル別名
  • Performance of Current Lead of YBCO Oxide Superconductor

説明

  A YBCO superconductor prepared by a Melt Powdering Melt Growth (MPMG) method was investigated with respect to the feasibility for an application to a superconducting current lead. A thermal conductivity and a critical current density of the YBCO sample were measured in the temperature range from 50 K to 15 K. The value of the thermal conductivity was about 0.03 W/cmK at 50 K. In the sample with a cross section of 8.65 × 6.85 mm2 and a thickness of 2.25 mm, the maximum quench current at 26 K was 86 A of which the value was one of few tens of the value expected from the critical current density, about 3000 A/cm2. The contact resistance at the current junction was relatively high, about 0.5 mΩ. Obtained results indicate that the MPMG bulk is a hopeful material for a superconducting current lead.

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詳細情報 詳細情報について

  • CRID
    1390282680067011712
  • NII論文ID
    130004477834
  • DOI
    10.3379/jmsjmag.15.709
  • COI
    1:CAS:528:DyaK3MXlvVyhtrw%3D
  • ISSN
    18804004
    02850192
  • 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

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