Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takayuki Miyatake0
Hiroyuki Kato0
Kyoji Zaitsu0
Takayoshi Miyazaki0
Date of Patent
May 18, 2010
0Patent Application Number
117031650
Date Filed
February 7, 2007
0Patent Primary Examiner
Patent abstract
A precursor for manufacturing a Nb3Sn superconducting wire according to the present invention includes a mono-element wire including a Sn or Sn-based alloy core disposed at the, 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 diffusion barrier layer and a stabilizing copper layer surrounding the Cu or Cu-based alloy matrix. In a final shape after a reduction process, the average diameter of the Nb or Nb-based alloy filaments is set to 5 μm to 30 μm, and the average distance between the Sn or Sn-based alloy core and the Nb or Nb-based alloy filaments nearest the Sn or Sn-based alloy core is set to 100 μm or less.
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