Effects of joining conditions on the structures and properties of joints of REBCO coated conductors

T. Maebatake, N. Mori, R. Teranishi, M. Mukaida, K. Yamada, M. Miura, M. Yoshizumi, T. Izumi

    研究成果: ジャーナルへの寄稿学術誌査読

    8 被引用数 (Scopus)

    抄録

    We investigated the joining of two REBCO (REBa2Cu 3O7 X, RE = Y, Gd) coated conductors using the diffusion joint process. REBCO coated conductors with stabilizing silver layer were joined by various joining conditions. Two pieces of the silver layer of tapes were overlapped in a face to face manner. Then, the pieces were pressurized and heat-treated at about 623-673 K under a pressure using some weights in oxygen atmosphere. Finally, the joint resistivity was obtained as low as about 10 nΩcm2 by 10 MPa for YBCO tape. The joint resistivity of the GdBCO tape was 50-60 nΩ cm2, which was higher than YBCO, but improved to 37 nΩ cm2 at 10 MPa by improving the joining conditions. Influences of joining conditions such as pressure and evenness of specimens and holders were investigated on joint adhesion and resistivity.

    本文言語英語
    ページ(範囲)1358-1360
    ページ数3
    ジャーナルPhysica C: Superconductivity and its applications
    470
    20
    DOI
    出版ステータス出版済み - 11月 1 2010

    !!!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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