Ba-Y-Cu-O SUPERCONDUCTING TAPE PREPARED BY SURFACE DIFFUSION PROCESS.

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作者
Kumakura, Hiroaki [1 ]
Yoshida, Yuji [1 ]
Togano, Kazumasa [1 ]
机构
[1] Tsukuba Lab, Sakura-mura, Jpn, Tsukuba Lab, Sakura-mura, Jpn
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BARIUM COMPOUNDS - Microscopic Examination - CERAMIC MATERIALS - ELECTRIC WINDINGS;
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摘要
Ba-Y-Cu-O superconducting tapes were fabricated by the reaction between Cu substrate and mixture of BaCO//3 and Y//2O//3 powders. Two layers of different compounds were formed on the Cu substrate after the reaction. The outer layer consisted of Ba//2Y//1Cu//3O//9// minus //y superconducting compound and the inner layer was identified as Cu//2O. Superconducting transition temperatures of 93 K (onset) and 40 K (offset) for the tapes were obtained.
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