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Nanostructured Low-CR CU-CR Coatings for the High Temperature Oxidation Resistance

Abstract: 

This invention is directed to a method of preventing oxidation of copper alloys at high temperatures by deposition of a nano-structured, low-chromium copper-chromium protective coating to copper-alloy components. The coatings of the present invention are applied by an ion beam assisted, electron beam physical vapor deposition and consist of copper and chromium particles having a diameter of about 10 nm. This invention also encompasses the coated copper-alloy components produced by the disclosed deposition methods.

Patent Number: 
7,592,051
Date Of Issue: 
09/22/2009
Inventors: 

Kuang-Tsan Kenneth Chiang; James H. Arps; Ronghua Wei