Verfahren zur Herstellung eines Oxid-Verbindungssupraleiterfadens.

摘要

The process includes steps comprising preparing a mass of oxide (1) having superconductivity from powder material, covering the mass of oxide (1) with a metal pipe (2), and then reducing the diameter of the metal pipe containing the oxide material into a wire form by a plastic deformation exerting mainly compressive strain upon the metal pipe (2). The oxide material may be a compound oxide having Perovskite-type crystal structure exhibiting superconductivity. The metal pipe (2) may be made of a metal selected from a group comprising Cu, Al, Nb, V, Mo, Ta, and Ag and of an alloy including these metals as the base. The mass of oxide (1) may be produced by steps including extruding a powder material into a rod shape and then sintering the molded rod at a temperature ranging from 700 to 1,000 DEG C. The plastic deformation of the metal pipe containing the mass of oxide therein may be carried out by swaging.