Method for making a composite body coated with one or more layer

Details Method for making a composite body coated with one or more layer Method for making a composite body coated with one or more layer

1985-06-24

1987-11-17

Childs, Sadie L.

Coating processes

Coating by vapor, gas, or smoke

Carbon or carbide coating

427250, 427255, 4272552, 4272553, 4272557, 4274197, 428408, C23C 1626, C23C 1632

Patent

active

047073845

ABSTRACT:
A chemical vapor deposition method for the production of a composite body with one or more polycrystalline diamond layers, essentially free of intercrystalline binder phase, on a substrate of one of: (a) metalbonded hardmaterial compound; (b) ceramic material; or (c) a metal or an alloy, whereby the heated substrate is contacted with a gaseous mixture of hydrocarbon or hydrogen, which mixture has been activated by passing it over a tantalum heater heated to a temperature of 1500.degree.-2500.degree. C.
Also disclosed is the use of the compound body in tools subjected to mechanical operations.

REFERENCES:
patent: 3714334 (1973-01-01), Vickery
patent: 4225355 (1980-09-01), Galasso et al.
patent: 4353963 (1982-10-01), Lee et al.
patent: 4504519 (1985-03-01), Zelez
Derjaguin et al., "Growth of Diamond Films on its Own and Foreign Surfaces", pp. 307-309.
Spitsyn et al, "Vapor Growth of Diamond on Diamond and Other Surfaces", J. of Crystal Growth, vol. 52, pp. 219-226, 1981.

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