Nb3Sn superconducting wire and precursor therefor
AssigneeKabushiki Kaisha Kobe Seiko Sho
InventorsHiroyuki Kato, Takashi Hase, Kyoji Zaitsu
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Abstract
A precursor for fabricating a Nb3Sn superconducting wire by an internal Sn process includes one or a plurality of stabilizing copper portions collectively disposed in the center, each stabilizing copper portion being provided with a diffusion barrier layer in the periphery thereof, and a superconducting matrix portion disposed so as to surround the one or the plurality of stabilizing copper portions, the superconducting matrix portion including a Nb or Nb-based alloy core and a Sn or Sn-based alloy core embedded in a Cu or Cu-based alloy matrix.
Claims6
A precursor for fabricating a Nb3Sn superconducting wire, the precursor being used for fabricating the Nb3Sn superconducting wire by an internal Sn process, the precursor comprising:
- one or a plurality of stabilizing copper portions collectively disposed in the center, each stabilizing copper portion being provided with a diffusion barrier layer in the periphery thereof;
- and
- a superconducting matrix portion disposed so as to surround the one or the plurality of stabilizing copper portions, the superconducting matrix portion including a Nb or Nb-based alloy core and a Sn or Sn-based alloy core embedded in a Cu or Cu-based alloy matrix.
Dependencies are inferred from the claim text.