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:
09/21/2009
Inventors:
Kuang-Tsan Kenneth Chiang; James H. Arps; Ronghua Wei
Full Text: