Superconductor wire and process for production thereof

Details Superconductor wire and process for production thereof Superconductor wire and process for production thereof

1992-02-20

1993-04-20

Walsh, Donald P.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505740, 419 3, 419 38, 419 41, H01B 1200, B22F 100

Patent

active

052043150

ABSTRACT:
A process for production of superconductor wire having multiple rings, comprising the steps of: preparing a silver mixture comprising a silver or silver-gold alloy mixed with a bonding agent, and a superconductor mixture comprising a superconductor powder with bonding agent; arranging both the silver mixture and the superconductor mixture in a extrusion die; extruding a wire having at least one ring of the superconductor mixture and one ring of the silver mixture in the radial direction; and heating the wire at the sinter temperature of the oxide superconductor so that the bonding agent is removed and the oxide superconductor powder and the silver powder are sintered. A superconductor wire comprising an inner core and an outer ring covering the core, wherein one of the ring on the core comprises a sintered silver powder and the other of the ring on the core comprises a sintered oxide superconductor powder.

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Bulletin of the Japan Institute of Metals, vo. 34, No. 10, pp. 980-984 (1987).
Journal of the Japan Society of Powder and Powder Metallurgy, vol. 34, No. 10, pp. 117-118 (Dec. 1987).

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