| 摘要 |
A method of manufacturing an aluminum-stabilized superconducting wire, which comprises the step of hot-extrusion-coating an entirety or a part of an outer circumference of a superconducting wire (11) which includes a superconducting filament embedded in a copper or copper alloy matrix, with a stabilizer (13) made of a precipitation-type aluminum alloy, is provided. The precipitation-type aluminum alloy is an Al-Ni alloy containing 100 to 25000 ppm of Ni, and the stabilizer made of the precipitation-type aluminum alloy is subjected, prior to the hot extrusion coating step, to an aging-heat treatment in which it is heated at a temperature of 250° C. to 500° C. for 10 minutes or more.
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