US 6,981,309 B2
Method for producing (Nb, Ti)3Sn wire by use of Ti source rods
Seung Hong, New Providence, N.J. (US); Jeff Parrell, Roselle Park, N.J. (US); and Michael Field, Jersey City, N.J. (US)
Assigned to Oxford Superconducting Technology, Carteret, N.J. (US)
Filed on Oct. 13, 2004, as Appl. No. 10/963,972.
Claims priority of provisional application 60/512354, filed on Oct. 17, 2003.
Prior Publication US 2005/0178472 A1, Aug. 18, 2005
Int. Cl. H01L 39/24 (2006.01)
U.S. Cl. 29—599 22 Claims
OG exemplary drawing
 
1. A method for producing a multifilament (Nb, Ti)3 Sn superconducting wire comprising the steps of:
a) packing a plurality of Nb or Nb alloy rods within a copper containing matrix to form a packed subelement for said superconducting wire;
b) packing Ti dopant source rods amongst the Nb or Nb alloy rods in the copper containing matrix;
c) providing sources of Sn accessible for diffusion into the Nb or Nb alloy rods;
d) assembling said subelements within a further copper containing matrix,
e) reducing said assemblage from step d) to wire form; and
f) diffusing the said Sn and said Ti into the Nb or Nb alloy rods to form (Nb, Ti)3 Sn.