Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-01-03
2006-01-03
Arbes, Carl J. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S825000, C174S125100, C505S928000, C505S930000
Reexamination Certificate
active
06981309
ABSTRACT:
An improvement is disclosed in the method for producing a multifilament (Nb, Ti)3Sn superconducting wire by the steps of preparing a plurality of Nb or Nb alloy rods where Nb or Nb alloy monofilaments are encased in copper or copper alloy sheaths; packing the Nb or Nb alloy rods within a copper containing matrix to form a packed subelement for the superconducting wire; providing sources of Sn, and sources of Ti within said subelement; assembling the subelements within a further copper containing matrix; and diffusing the Sn and Ti into the Nb or Nb alloy rods to form (Nb, Ti)3Sn. The method is improved by diffusing the Ti into the Nb from a minor number of Ti dopant source rods which are distributed among the Nb or Nb alloy rods.
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Field Michael
Hong Seung
Parrell Jeff
Arbes Carl J.
Klauber & Jackson
Oxford Superconducting Technology
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