Carbon film-coated article and method of producing the same

Details Carbon film-coated article and method of producing the same Carbon film-coated article and method of producing the same

2007-01-30

2007-01-30

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

C428S469000, C428S698000, C428S336000, C428S216000

Reexamination Certificate

active

10465618

ABSTRACT:
This invention is directed to a carbon film-coated article comprising a substrate; a mixed layer formed on at least a part of the substrate, and composed of an element(s) constituting the substrate and tungsten; a tungsten film formed on the mixed layer; and a carbon film formed on the tungsten film. The invention provides a method of producing the carbon film-coated article, the method comprising the steps of: forming a mixed layer on at least a part of the substrate, the mixed layer being composed of an element(s) constituting the substrate and tungsten, forming a tungsten film on the mixed layer, and forming a carbon film on the tungsten film, wherein at least one of the mixing layer, the tungsten film and the carbon film is formed using a cathode material evaporated by arc discharge in a vacuum arc deposition apparatus having a vacuum arc evaporation source including the cathode.

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EPO Search Report dated Oct. 29, 2003.
Kwang-Ryeol Lee et al. “Design of W buffer layer of adhesion improvement of DLC films on tool steels”, Thin Solid Films 377-378 (2000) 261-268, Elsevier.

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