Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Patent
1986-06-24
1988-02-09
Childs, Sadie L.
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
20419216, 20419223, 427255, 4272552, 4272553, 4272557, 427404, 4274192, 4274197, C23C 1630, C23C 1632
Patent
active
047241691
ABSTRACT:
Multilayer protective coatings that are applied over a substrate that comprise a plurality of superimposed multilayer units and methods of making the coatings are disclosed. Each multilayer unit contains two or more superimposed thin layers in which at least two layers are compositionally different. The properties of the resulting coating are a combination of the properties of the individual layers. One layer of a multilayer unit may provide hardness or wear resistance and another layer may provide lubricity, for example. The thickness of the individual layers can be related to the microscopic surface relief of the substrate to which the protective coating is applied. One disclosed multilayer unit comprises three layers: an oxidation resistant layer; a nitride layer; and a layer of disordered boron and carbon material.
A method of making the multilayer coatings is provided that includes depositing over a substrate a plurality of superimposed multilayer units. The deposition may be accomplished by sputtering, for example.
REFERENCES:
patent: 3837894 (1974-09-01), Tucker
patent: 3912461 (1975-10-01), Wakefield
patent: 3977061 (1976-08-01), Lindstrom et al.
patent: 4284687 (1981-08-01), Dreyer et al.
patent: 4399168 (1983-08-01), Kullander et al.
patent: 4436775 (1984-03-01), Graham
patent: 4449989 (1984-05-01), Sarin et al.
patent: 4463033 (1984-07-01), Kikuchi et al.
patent: 4540596 (1985-09-01), Nimmagadda
patent: 4594137 (1986-06-01), Gillery et al.
Urbanek, "Magnetron Sputtering of SiO.sub.2 An Alternative to Chemical Vapor Deposition", Solid State Technology, vol. 20, No. 4, pp. 87-90, Apr. 1977.
Flasck James D.
Keem John E.
Childs Sadie L.
Goldman Richard M.
Ovonic Synthetic Materials Company Inc.
Siskind Marvin S.
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