Intermetallic compound-based, composite superconductor

Details Intermetallic compound-based, composite superconductor Intermetallic compound-based, composite superconductor

1986-10-30

1988-06-21

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Conductor structure

29599, 174 15S, 174126S, H01B 1200

Patent

active

047526548

ABSTRACT:
The present invention provides an intermetallic compound-based, composite superconductor suitable for use in superconducting coils for a high magnetic field, where the superconductive part is formed by thermal diffusion reaction, and which has such a structure that a metal layer of high melting point and high resistance is provided at the outermost periphery of a strand comprising a plurality of filaments containing a superconductive compound formed by diffusion reaction with the surrounding matrix, a stabilizer surrounding the matrix, and a diffusion barrier provided between the stabilizer and the matrix for preventing diffusion of superconductive compound-forming element in the matrix from diffusion into the stabilizer during the diffusion reaction, and the coupling current induced between the intermetallic compound-based superconductive wire members can be reduced by the provision of the metal layer of high melting point and high resistance. Furthermore, the superconductive parts can be formed by heat treatment, and the AC loss can be reduced thereby.

REFERENCES:
patent: 3958327 (1976-05-01), Marancik et al.
patent: 3996661 (1976-12-01), Ziegler et al.
patent: 4094060 (1978-06-01), Madsen et al.
patent: 4205119 (1980-05-01), Young et al.
patent: 4329539 (1982-05-01), Tanaka et al.
patent: 4330347 (1982-05-01), Hirayama et al.
Asner A.; Neue Filamentierte Nb.sub.3 Sn, Hochfeld-Supraleiter; Bulletin SEV/VSE (ASE/UCS); vol. 68, No. 10; May 14, 1977; Zurich; pp. 484-488.

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