METHOD FOR PRODUCING (Nb, Ti)3Sn WIRE BY USE OF Ti SOURCE RODS

Title:

METHOD FOR PRODUCING (Nb, Ti)3Sn WIRE BY USE OF Ti SOURCE RODS

Document Type and Number:

WIPO Patent Application WO2005081700

Kind Code:

A3

Abstract:

An improvement is disclosed in the method for producing a multifilament (Nb, Ti)₃ Sn 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)₃ Sn. 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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Inventors:

HONG SEUNG (US)
PARRELL JEFF (US)
FIELD MICHAEL (US)

Application Number:

PCT/US2004/034022

Publication Date:

August 03, 2006

Filing Date:

October 14, 2004

Export Citation:

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Assignee:

OXFORD SUPERCONDUCTING TECHNOLOGY (US)
HONG SEUNG (US)
PARRELL JEFF (US)
FIELD MICHAEL (US)

International Classes:

C22F1/18; B21C37/04; C22C1/02; H01L39/24

Foreign References:

US4776899A	1988-10-11
US6836955B2	2005-01-04
US6918172B2	2005-07-19
US4917965A	1990-04-17
US3743986A	1973-07-03
US4646428A	1987-03-03

Other References: