The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2009
Filed:
Feb. 09, 2005
Kuang-tsan Kenneth Chiang, Helotes, TX (US);
James H. Arps, San Antonio, TX (US);
Ronghua Wei, San Antonio, TX (US);
Kuang-Tsan Kenneth Chiang, Helotes, TX (US);
James H. Arps, San Antonio, TX (US);
Ronghua Wei, San Antonio, TX (US);
Southwest Research Institute, San Antonio, TX (US);
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.