Supraleitender Draht und Verfahren zu seiner Herstellung

摘要

A starting material which is converted to a continuous body of an oxide superconductor by a heat treatment is filled in a tubular Ag sheath member (2). The diameter of the filled member is reduced by extrusion to form a wire. The wire is subjected to a heat treatment so that the starting material inside the sheath member is converted to a continuous body of an oxide superconductor (1). A superconducting wire constituted by the sheath member (2) and the oxide superconductor (1) filled inside the sheath member is obtained. A superconducting coil can be obtained by winding the superconducting wire.