Process for producing Nb.sub.3 Sn superconductor

Details Process for producing Nb.sub.3 Sn superconductor Process for producing Nb.sub.3 Sn superconductor

1982-07-28

1983-12-06

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 115Q, 148133, H01L 3900

Patent

active

044191456

ABSTRACT:
In a process for producing at least one Nb.sub.3 Sn superconductor which comprises drawing a composite composed of a core of niobium or a niobium alloy and a matrix of a copper-tin alloy and subjecting the drawn composite to reactive heat-treatment, thereby forming a layer of Nb.sub.3 Sn between the core and the matrix; the improvement wherein the copper-tin alloy contains 1 to 15 atomic percent of tin, and 0.1 to 8 atomic percent in total of at least one element selected from 0.1 to 8 atomic percent of titanium, 0.1 to 5 atomic percent of zirconium and 0.1 to 5 atomic percent of hafnium.

REFERENCES:
patent: 4323402 (1982-04-01), Tachikawa et al.
patent: 4341572 (1982-07-01), Tachikawa et al.
patent: 4343867 (1982-08-01), Luhman et al.
Flukiger et al., "Fabrication on a Laboratory Scale and Mechanical Properties of Cu-Nb-Sn Multifilamentary Superconducting Composite Wires Produced by Cold Powder Metallurgy Processing", Appl. Phys. Lett, 35(10), Nov. 15, 1979, pp. 810-812.
Tachikawa, "Developments of A15 Filamentary Composite Superconductors in Japan", Filamentary A15 Superconductors, Edited by Suenaga et al., Plenum Press, N.Y., 1980, pp. 1-15.

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