COMPOUND SUPERCONDUCTING WIRE AND MANUFACTURE OF COMPOUND SUPERCONDUCTING WIRE

Japanese Patent JP2735534

B2

PROBLEM TO BE SOLVED: To provide an oxide superconductor easily worked into a wire rod or the like and to provide a compound superconducting wire by using this oxide superconductor, by charging inside a sheath material with raw material to perform regressive working, and applying heat treating to this sheath material.
SOLUTION: A material 2 of forming an oxide superconductor is buried inside a sheath material 3. The sheath material 3, having low electric resistance to be excellent in heat conductivity, is suited. This sheath material 3 serves as a stabilizer material in the case of forming a superconducting wire. Next extruding a member obtained by burying the sheath material, regressive working is applied by a method of swaging, wire drawing, etc., to obtain a wire rod of desired diameter. Next applying heat treating to a member of applying the regressive working, a compound superconductor 1, connecting the material 2 with which inside the sheath material 3 is charged, is obtained. This heat treating temperature can be suitably set so as to form the oxide superconductor, but a melting point of the sheath material is substantially an upper limit temperature. In this process, for preventing diffusing oxygen or the like from a material side, a barrier material also can be interposed between the sheath material and the raw material.

JPH01252779	PRODUCTION OF CERAMIC SUPERCONDUCTOR
JPH03228823	PRODUCTION OF OXIDE SUPERCONDUCTING THIN FILM
WO/2008/137025	NICKEL-LATERITE PROCESS

YOSHINO HISASHI
MURASE AKIRA
YAMADA MINORU

JP22074096A

April 02, 1998

August 05, 1996

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TOSHIBA KK

C01G1/00; C01G3/00; H01B12/04; H01B13/00; (IPC1-7): H01B13/00; C01G1/00; C01G3/00; H01B12/04

JP64617A
JP1140520A

Togawa Hideaki

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