Metal working – Method of mechanical manufacture – Electrical device making
Patent
1986-02-19
1987-05-19
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Electrical device making
174126S, 174128S, H01L 3924
Patent
active
046656111
ABSTRACT:
A method of fabricating a superconductive electrical conductor of Nb.sub.3 Sn type comprises a step of covering an elongated core member made of Nb with a covering member made of a third element selected from the group consisting of Ti, Ta, In, Hf, Al and Si. The core member covered with the covering member is covered with a tubular matrix made of a Cu-Sn alloy or a combination of Cu with Sn to form a composite wire element. Such wire elements are assembled in a tubular matrix made of a Cu-Sn alloy, Cu or a combination of Cu with Sn and reduced in diameter to form a multi-core composite wire element having a desired diameter. The assembling and reducing processing is effected at least one to form a multi-core composite wire which is then subjected to a diffusion heat-treatment to form an intermetallic compound of Nb.sub.3 Sn and the third element in the peripheral portion of the core member.
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Ikeno Yoshimitsu
Kohno Osamu
Sadakata Nobuyuki
Sugimoto Masaru
Arbes Carl J.
Fujikura Ltd.
Goldberg Howard N.
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