Method for producing superconducting Nb.sub.3 Sn wires

Details Method for producing superconducting Nb.sub.3 Sn wires Method for producing superconducting Nb.sub.3 Sn wires

1981-03-31

1982-04-06

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

29599, 204 37T, 428930, H01L 3900, C23C 104

Patent

active

043234020

ABSTRACT:
In a method of producing a superconducting Nb.sub.3 Sn wire which comprises passing a wire or tape of a niobium-base alloy through a molten metal bath containing tin and then heat-treating it to form a Nb.sub.3 Sn compound layer on the surface of said wire or tape, the improvement wherein said niobium-base alloy is an alloy comprising niobium and 0.1 to 30 atomic percent of hafnium, and said molten metal bath is a molten bath of pure tin or a tin-base alloy consisting of tin, from 0.1 to 70 atomic percent of one element of Group IIIb of the periodic table selected from the group consisting of gallium, indium, and aluminum, and from 0.1 to 70 atomic percent of one element of Group Ib of the periodic table selected from the group consisting of copper and silver, the total amount of the element of Group IIIb and the element of Group Ib not exceeding 70 atomic percent.

REFERENCES:
patent: 3244490 (1966-04-01), Saur
patent: 3792990 (1974-02-01), Tachikawa et al.
patent: 4224087 (1980-09-01), Tachikawa et al.

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