Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takayoshi Miyazaki0
Hiroyuki Kato0
Kyoji Tachikawa0
Kyoji Zaitsu0
Date of Patent
December 2, 2008
0Patent Application Number
116616950
Date Filed
September 12, 2005
0Patent Primary Examiner
Patent abstract
A method for producing an Nb3Sn superconductive wire material using a powder process is provided, in which a powdered raw material is filled in a sheath made of Nb or an Nb-based alloy, and the above sheath is subjected to diameter reduction to form a wire, followed by heat treatment to form a superconducting layer at the interface between the sheath and the filled powder. The above powdered raw material contains powdered Sn, powdered Cu, and a powdered alloy or a powdered intermetallic compound, which is formed from Sn and at least one metal selected from the group consisting of Ti, Zr, Hf, V, and Ta.
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