SUPERCONDUCTIVE CURRENT LEAD, CURRENT LEAD DEVICE, AND SUPERCONDUCTING MAGNET DEVICE

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PROBLEM TO BE SOLVED : To provide a superconductive current lead, a superconductive current lead device, and a superconducting magnet device such that a current lead using a rare-earth high-temperature superconducting wire material is given a structure for improving long-period reliability. SOLUTION : There is provided a current lead for supplying superconducting equipment with electric power, the current lead including electrode members provided on both end sides, a support body arranged between those electrode members so as to connect those electrode members, and a plurality of tape-like rare-earth multi-layer thin-film superconducting wire materials arranged on an external surface of the support body and having both end parts connected to the respective electrode members. The rare-earth multi-layer thin-film superconducting wire materials each include a base material, an intermediate layer and an oxide superconductive layers formed on the base material, and a stabilizing layer of metal covering them, the stabilizing layer being less than 80 μm in thickness. COPYRIGHT : (C)2013, JPO&INPIT