Nb3Sn superconducting wire manufactured by internal Sn process and precursor for manufacturing the same

摘要

A precursor for manufacturing a Nb 3 Sn superconducting wire by an internal diffusion process, includes: a multielement wire (12) including a bundle of a plurality of single-element wires (1) each including a Sn or Sn-based alloy core centrally disposed, and a Cu or Cu-based alloy matrix and a plurality of Nb or Nb-based alloy filaments surrounding the Sn or Sn-based alloy core; and a rod-like reinforcing member (9a,9b) disposed in and/or around the bundle of the single-element wires.