Resources Contact Us Home
Composite coatings

Image Number 11 for United States Patent #6143142.

The invention describes composite coatings, in particular comprising carbon and another metallic element such as silicon or aluminium. These coatings have improved properties compared with pure tetrahedral amorphous carbon coatings, in that they have reduced stress levels and can be deposited at higher thicknesses, whilst retaining acceptable hardness and other useful mechanical properties. Also described are methods of making composite coatings, materials for making the coatings and substrates coated therewith. Specifically, a method of applying a coating to a substrate using a cathode arc source, comprises generating an arc between a cathode target and an anode of the source and depositing positive target ions on the substrate to form the coating, wherein the coating is a composite of at least first and second elements and the target comprises said at least first and second elements. A composite coating comprises tetrahedral amorphous carbon and a metallic element other than carbon, the composite coating having an sp.sup.3 content of at least 60%. A target for use in a cathode arc source comprises a mixture of carbon and a metallic element other than carbon.

  Recently Added Patents
System and method for self service marketing research
Hydrogenolysis of ethyl acetate in alcohol separation processes
Recording device, recording method, and program
Recording apparatus, recording method, reproducing apparatus, reproducing method, program, and recording/producing apparatus
Color image display device, color filter substrate, color pixel array substrate, and electronic device
Application authentication system and method
Systems and methods for processing supplemental information associated with media programming
  Randomly Featured Patents
Shield shell unit with a projecting fixing portion
Thermal pulse type heater for coolant systems and the like
Open well type refrigerated display case with reverse flow of air bands
Control circuit for protecting an excess discharge of a battery
System and method for the broadcast dissemination of time-ordered data
Apparatus for heating of the nasal passages
Eccentric scored rupture disk assembly
Surface configuration of a rear panel for vehicle
Secret-ballot systems with voter-verifiable integrity