Method for continuous production of niobium-germanium layers on

Details Method for continuous production of niobium-germanium layers on Method for continuous production of niobium-germanium layers on

1980-11-04

1982-06-22

Morgenstern, Norman

Coating processes

Electrical product produced

Superconductor

427124, 4272553, 4272555, 427250, 427251, B05D 512

Patent

active

043362800

ABSTRACT:
A method for producing layers of niobium-germanium on a continuous substrate. The layers are produced in a reaction chamber by the reduction of Nb and Ge which are halogenized by H.sub.2 on the substrate which is heated. Uniform high current density of the Nb.sub.3 Ge layers throughout the length of the substrate is insured by the addition of a small amount of water vapor which is admixed, in accordance with the invention, to a reaction gas mixture containing H.sub.2 gas and Nb and Ge halogenides. The content of water vapor in the reaction gas is maintained between 0.05 and 0.001 volume percent.

REFERENCES:
patent: 3630769 (1971-12-01), Hart
patent: 3982049 (1976-09-01), Mee et al.
patent: 4005990 (1977-02-01), Newkirk et al.
patent: 4242419 (1980-12-01), Dayem et al.
patent: 4253887 (1981-03-01), Jolly
Kawamura et al., Japanese J. of Applied Physics, vol. 16, No. 11, Nov. 1977, pp. 2037-2041.

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