Superconducting members and methods of manufacturing thereof

Details Superconducting members and methods of manufacturing thereof Superconducting members and methods of manufacturing thereof

1975-09-29

1979-01-23

Lanham, C.W.

Metal working

Method of mechanical manufacture

Electrical device making

148133, 174126S, H01V 1100

Patent

active

041352939

ABSTRACT:
A superconductor of the general formula A.sub.3 B, e.g. Nb.sub.3 Sn, is manufactured by mechanical fabrication of A filaments in a bronze containing B followed by heat treatment to form A.sub.3 B by solid state reaction from B diffusing through the bronze without melting of the bronze. A pure metal for stabilization is mechanically fabricated together with the other components and protected from diffusion thereinto of any of the other components by a barrier layer of A metal. Superconductor formation on the barrier layer of A metal during the heat treatment is avoided or reduced by surface treatment or surface coating which inhibits A.sub.3 reaction between A and B at the barrier.

REFERENCES:
patent: 3652967 (1972-03-01), Tanaka et al.
patent: 3665595 (1972-05-01), Tanaka et al.
patent: 3728165 (1973-04-01), Howlett
patent: 3813764 (1974-06-01), Tanaka et al.
patent: 3868768 (1975-03-01), Meyer
patent: 3874074 (1975-04-01), Meyer
patent: 3876473 (1974-01-01), McDougall
patent: 3958327 (1976-05-01), Marancik et al.
patent: 3996661 (1976-12-01), Ziegler et al.

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