Manufacture of niobium-aluminum superconducting material

Details Manufacture of niobium-aluminum superconducting material Manufacture of niobium-aluminum superconducting material

1981-07-17

1983-07-05

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

29599, 420901, H01L 3924

Patent

active

043916570

ABSTRACT:
Niobium-aluminum superconducting wire and other shaped articles are made by heating a precursor body which comprises niobium, an auxiliary element which is more easily oxidizable than aluminum, and aluminum oxide, the aluminum oxide being supported by a surface or a matrix comprising niobium and the auxiliary element. Among suitable auxiliary elements are zirconium, hafnium, scandium, yttrium, and the nonmagnetic rare earths.

REFERENCES:
patent: 3676577 (1972-07-01), Martin et al.
patent: 4018942 (1977-04-01), Muller et al.
patent: 4200767 (1980-04-01), Nomura et al.
patent: 4223434 (1980-09-01), Wang et al.
L. R. Testardi et al., "Superconductivity in Some Metastable Film Phases", Journal of Applied Physics, vol. 45, (1974), pp. 446-451.
R. L. Ciardella et al., "A Quench-Age Method for the Fabrication of Nb(Al) Superconductors", IEEE Transactions on Magnetics, vol. MAG-13, (1977), pp. 832-833.
K. Togano et al., "An Improved Method for Fabrication of Nb.sub.3 (Al,Ge) Wire", IEEE Transactions on Magnetics, vol. MAG-13, (1977), pp. 478-479.

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