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SPRAY METHODS FOR COATING NUCLEAR FUEL RODS TO ADD CORROSION RESISTANT BARRIER

United States Patent Application

20180025794
A1
View the Complete Application at the US Patent & Trademark Office
A method is described herein for coating the substrate of a component for use in a water cooled nuclear reactor to provide a barrier against corrosion. The method includes providing a zirconium alloy substrate; and coating the substrate with particles selected from the group consisting of metal oxides, metal nitrides, FeCrAl, FeCrAlY, and high entropy alloys. Depending on the metal alloy chosen for the coating material, a cold spray or a plasma arc spray process may be employed for depositing various particles onto the substrate. An interlayer of a different material, such as a Mo, Nb, Ta, or W transition metal or a high entropy alloy, may be positioned in between the Zr-alloy substrate and corrosion barrier layer.
LAHODA, EDWARD J. (EDGEWOOD, PA), XU, PENG (COLUMBIA, SC), KAROUTAS, ZESES (LEXINGTON, SC), MIDDLEBURGH, SIMON (VASTERAS, SE), RAY, SUMIT (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/ 284,182
October 3, 2016
STATEMENT REGARDING GOVERNMENT RIGHTS [0002] 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.