Title:
PRECURSOR OF POWDER-METHOD Nb3Sn SUPERCONDUCTING WIRE ROD, AND POWDER-METHOD Nb3Sn SUPERCONDUCTING WIRE ROD
Document Type and Number:
WIPO Patent Application WO/2007/102517
Kind Code:
A1
Abstract:
This invention provides a precursor of a powder-method Nb3Sn superconducting
wire rod, which, even in a relatively low practical temperature of about 600 to
750°C, can improve Nb3Sn production reaction efficiency and
can realize excellent supercondutive properties, and a powder-method Nb3Sn
superconducting wire rod. The precursor of a powder-method Nb3Sn
superconducting wire rod is produced by filling a powder of a raw material containing
at least Sn into a sheath containing at least Nb, subjecting the assembly to diameter
reduction working to prepare a wire rod, and then heat treating the wire rod to
form a superconducting layer at the interface of the sheath and the powder. The
raw material powder contains a Cu component, and the sheath is formed of a composite
of Nb or an Nb-base alloy part and Cu or a Cu-base alloy part.
Inventors:
ZAITSU, Kyoji (())
財津 享司 (())
財津 享司 (())
Application Number:
JP2007/054356
Publication Date:
September 13, 2007
Filing Date:
March 06, 2007
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 6518585, JP)
ZAITSU, Kyoji (())
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 6518585, JP)
ZAITSU, Kyoji (())
International Classes:
H01B13/00; C22F1/00; H01B12/10; H01F6/06; H01B13/00; C22F1/00; H01B12/10; H01F6/06
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
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