Ultrasmooth adherent diamond film coated article and method for

Details Ultrasmooth adherent diamond film coated article and method for Ultrasmooth adherent diamond film coated article and method for

1995-05-16

1996-11-05

Turner, Archene

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428408, 423446, C01B 3106

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active

055716164

ABSTRACT:
An ultrasmooth diamond film has a thickness greater than about ten microns and an average grain size less than about 0.5 micron. The ultrasmooth diamond film of the present invention is grown using ordinary microwave plasma CVD methods, with a metal vapor source included in the reactor to produce vapor during the growth of the film. The metal vapor source may be chosen from the first row transition elements, chromium, iron, cobalt, and nickel, or from the lanthanides praseodymium, europeum, or erbium. Any metal capable of existing in the vapor phase in the presence of the hydrogen plasma, will cause formation of the ultrasmooth film of the present invention.

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Saito et al "Adhesion strength of diamond film on cemented carbide insert" Diamond & Related Materials 2(1993) 1391-1395.
Kurihara, et al., "Formation of Functionally Gradient Diamond Films", 1991, Elsevier Science Publishers B.V., pp. 461-466.

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