Nb3Sn SUPERCONDUCTING WIRE, PROCESS FOR PRODUCING THE SAME, AND SINGLE-CORE COMPOSITE WIRE USED IN PRODUCTION OF Nb3Sn SUPERCONDUCTING WIRE

Title:

Nb3Sn SUPERCONDUCTING WIRE, PROCESS FOR PRODUCING THE SAME, AND SINGLE-CORE COMPOSITE WIRE USED IN PRODUCTION OF Nb3Sn SUPERCONDUCTING WIRE

Document Type and Number:

WIPO Patent Application WO/2006/129861

Kind Code:

A1

Abstract:

An Nb₃Sn wire rod having a high J_C value is produced using an Ag-Sn alloy. A composite rod comprising a plurality of Nb core materials incorporated in an Ag-Sn alloy matrix material having an Sn concentration of 9.35 to 22.85 atomic% is prepared. Next, the composite rod is extruded and/or wire drawn while carrying out intermediate annealing of 350 to 490ºC, followed by heat treatment at 500 to 900ºC to produce an Nb₃Sn filament. Thus, an Nb₃Sn extrafine multi-core superconducting wire is produced.

Inventors:

INOUE KIYOSHI (JP)

Application Number:

PCT/JP2006/311364

Publication Date:

December 07, 2006

Filing Date:

May 31, 2006

Export Citation:

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Assignee:

UNIV TOKUSHIMA (JP)
INOUE K (JP)

International Classes:

H01B13/00; C22F1/00; H01B12/10

Foreign References:

JPS52127195A

1977-10-25

Attorney, Agent or Firm:

Suzuki, Seigoh (29-10 Shiba 2-chom, Minato-ku Tokyo 14, JP)

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