SUPERCONDUCTING WIRE MATERIAL SUBSTRATE AND METHOD FOR MANUFACTURING SAME, AND SUPERCONDUCTING WIRE MATERIAL

摘要

The purpose of this invention is to provide a superconducting wire material substrate for manufacturing a superconducting wire material having exceptional superconductor characteristics, and a method for manufacturing the superconducting wire material substrate. A superconducting wire material substrate in which the metal crystal orientation of the outermost layer has a c-axis orientation of 99% or higher and a Δω of 6° or less, and the ratio of the area in which the crystal orientation is offset from (001) [100] by 6° or more is 6% or less per unit surface area.