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:
Mar. 02, 2010
Filed:
Oct. 23, 2006
Denis Camel, Grenoble, FR;
Laurent Bedel, Quaix en Chartreuse, FR;
Frédéric Sanchette, Montferrat, FR;
Cédric Ducros, Bevenais, FR;
Denis Camel, Grenoble, FR;
Laurent Bedel, Quaix en Chartreuse, FR;
Frédéric Sanchette, Montferrat, FR;
Cédric Ducros, Bevenais, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The sulfidation resistance of a silver-base material coating is further improved by making a concentration gradient of silver, oxygen and of one or more oxidizable alloying elements that may be present in the material, from the free surface of the coating up to a depth comprised between 10 nm and 1 μm and more particularly between 100 nm and 1 μm. Thus, the coating comprises a stack of one main layer made from silver-base material and of one oxidized thin film. The thin film, with a thickness comprised between 10 nm and 1 μm, thus presents a decreasing silver concentration gradient from the interface between the thin film and the main layer to the free surface of the thin film. Deposition of the coating on a support can be achieved by two successive physical vapor deposition steps, and more particularly by magnetron cathode sputtering.