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Hard and low friction nitride coatings and methods for forming the same

United States Patent

May 1, 2007
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
An improved coating material possessing super-hard and low friction properties and a method for forming the same. The improved coating material includes the use of a noble metal or soft metal homogeneously distributed within a hard nitride material. The addition of small amounts of such metals into nitrides such as molybdenum nitride, titanium nitride, and chromium nitride results in as much as increasing of the hardness of the material as well as decreasing the friction coefficient and increasing the oxidation resistance.
Erdemir; Ali (Naperville, IL), Urgen; Mustafa (Istanbul, TR), Cakir; Ali Fuat (Istanbul, TR), Eryilmaz; Osman Levent (Bolingbrook, IL), Kazmanli; Kursat (Istanbul, TR), Keles; Ozgul (Istanbul, TR)
U Chicago Argonne LLC (Chicago, IL)
10/ 337,966
January 6, 2003
This invention was made with government support under Contract No. W-31-109-ENG-38 awarded to the Department of Energy. The Government has certain rights in this invention.