HERSTELLUNGSVERFAHREN VON ALUMINIUM-STABILISIERTEM SUPRALEITENDEM DRAHT

摘要

A method for producing an aluminum-stabilized super conductive wire comprising covering the whole or part of the outer surface of a superconductive wire (11) constituted of a cupper or cupper-alloy matrix and superconductive filaments embedded in the matrix with a stabilizing material (13) made of a precipitation aluminum alloy by hot extrusion. The precipitation aluminum alloy is an Al-Ni alloy containing 100 to 25,000 ppm of nickel. Before the hot extrusion covering step, the stabilizing material (13) of the precipitation aluminum alloy is subjected to an aging heat treatment at 250 DEG to 500 DEG C for more than 10 minutes.