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DUPLEX ACCIDENT TOLERANT COATING FOR NUCLEAR FUEL RODS

United States Patent Application

20180096743
A1
View the Complete Application at the US Patent & Trademark Office
A method is described for forming duplex layers including an interlayer and a corrosion resistant boundary layer on a nuclear fuel rod cladding tube for use in a water cooled nuclear reactor. The method includes forming, by thermal deposition or physical vapor deposition, on the exterior of a substrate, an inner interlayer with Mo, Ta, W or Nb or other particles, and forming, by thermal deposition or physical vapor deposition, on the interlayer, an outer corrosion resistant layer with particles selected from the group consisting of Cr, a Cr alloy, and combinations thereof. The interlayer prevents eutectic formation between the corrosion resistant layer and the substrate.
LAHODA, EDWARD J. (EDGEWOOD, PA), XU, PENG (COLUMBIA, SC), OELRICH, ROBERT (COLUMBIA, SC), SRIDHARAN, KUMAR (MADISON, WI), MAIER, BENJAMIN (WAUNAKEE, WI), JOHNSON, GREG (MADISON, WI)
WESTINGHOUSE ELECTRIC COMPANY, LLC (CRANBERRY TOWNSHIP PA), WISCONSIN ALUMNI RESEARCH FOUNDATION (MADISON WI)
15/ 722,167
October 2, 2017
STATEMENT REGARDING GOVERNMENT RIGHTS [0001] This invention was made with government support under Contract No. DE-NE0008222 awarded by the Department of Energy. The U.S. Government has certain rights in this invention.