Arc coating of refractory metal compounds

Details Arc coating of refractory metal compounds Arc coating of refractory metal compounds

1988-06-10

1989-06-13

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204298, 427 37, 427 47, C23C 1422

Patent

active

048390119

ABSTRACT:
A process for arc coating alloy films on objects using a cathode or target having the two materials from which the alloy is to be formed. An alloy nitride coating may be formed by reacting the flux of coating materials from the cathode with nitrogen. The arc is magnetically steered to move in a closed arc track. The track is positioned partially in each material of the cathode to provide a flux having the desired proportion of each material. The length of the closed arc track is defined in relation to the arc speed of travel so that the cathode materials remain molten in the arc track during operation.

REFERENCES:
patent: 3625848 (1971-12-01), Snaper
patent: 3956093 (1976-05-01), McLeod
patent: 4444635 (1984-04-01), Kobayashi et al.
patent: 4444643 (1984-04-01), Garrett
patent: 4511593 (1985-04-01), Brandolf
patent: 4563262 (1986-01-01), Sableu et al.
Russian Inventors Certificate 711787, published Oct. 7, 1980, entitled, "An Electric-Arc Vaporizer of Metals".
D. Hadfield, Permanent Magnets and Magnetism, Iliffe Books Ltd., London, 1962, pp. 213-214.

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