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Reduced-friction coatings

  • US 20090074522A1
  • Filed: 09/16/2008
  • Published: 03/19/2009
  • Est. Priority Date: 09/17/2007
  • Status: Abandoned Application
First Claim
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1. A coating having a first layer comprising a first nitride and a second layer comprising a second nitride wherein the first nitride and the second nitride are sufficiently immiscible to maintain respective layer individuality at an elevated service temperature when a contact surface of the coating is in sliding contact with another material and wherein one of the first layer or second layer includes a component that is oxidizable at the contact surface to form a friction-reducing lubricious oxide at the contact surface.

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