OXIDE SUPERCONDUCTING WIRE PRODUCING METHOD - SUMITOMO ELECTRIC INDUSTRIES

Title:

OXIDE SUPERCONDUCTING WIRE PRODUCING METHOD

Document Type and Number:

WIPO Patent Application WO/2003/100795

Kind Code:

A1

Abstract:

An oxide superconducting wire producing method comprising a step of producing a wire having a form in which the material powder of an oxide superconductor is covered with a metal (S1, S2) and a step of heat-treating the wire in a pressurized atmosphere (S4, S6), wherein the total pressure of the pressurized atmosphere lies in the range from 1 to 50 MPa. In such a way, voids among the oxide superconducting crystals and bulging of the oxide superconducting wire are prevented, and the partial pressure of oxygen during the heat treatment can be easily controlled, thereby improving the critical current density.

Inventors:

KOBAYASHI SHIN-ICHI (JP)
KATO TAKESHI (JP)

Application Number:

PCT/JP2003/006429

Publication Date:

December 04, 2003

Filing Date:

May 22, 2003

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
KOBAYASHI SHIN-ICHI (JP)
KATO TAKESHI (JP)

International Classes:

H01B13/00; H01L39/24; H01R43/00; (IPC1-7): H01B13/00

Foreign References:

JPH03153559A	1991-07-01
JPH0345301A	1991-02-26
EP0404966A1	1991-01-02
JPH07232960A	1995-09-05
JPS63285812A	1988-11-22
JPH05101723A	1993-04-23
JP2592846B2	1997-03-19
JP2592846B2	1997-03-19
JPH05101723A	1993-04-23

Other References: