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US 2011/0256347 A1Published application
Method for making diamond composite materials
AssigneeCentre National De La Recherche Scientifique
InventorsJean-Pierre Manuad, Angéline Poulon, Lionel Teule-Gay, Cyril Faure
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Abstract
The invention relates to a method for depositing a diamond coating onto a substrate, said method resulting in the production of a coating characterised by a novel morphology of the diamond in the form of pyramids containing submicronic grains. The method is carried out by chemical vapour deposition by controlling the applied electric field.
Claims14
A process for depositing diamond on a substrate, by chemical vapor deposition, this process comprising at least:
- a) an initiation step;
- b) a nucleation step;
- c) a growth step, the growth step comprising at least one sequence of two successive phases, the first phase being a coalescence phase without application of an electric field and the second phase being a nucleation phase with application of an electric field.
Dependencies are inferred from the claim text.