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 |
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.
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