PROTECTIVE COATING APPLIED TO METALLIC REACTOR COMPONENT FOR REDUCING CORROSION PRODUCT RELEASED INTO NUCLEAR REACTOR ENVIRONMENT

摘要

PPROBLEM TO BE SOLVED: To reduce or mitigate general corrosion and erosion-corrosion by forming an insulating coating on metallic components in a nuclear reactor water environment. PSOLUTION: The coating is preferably a 0.1 micron to 0.3 mm thin layer of an oxide coasting, such as titania (TiOSB2/SB), zirconia (ZrOSB2/SB), tantala (TaSB2/SBOSB5/SB), Al2O3, CeO2 or similar oxides, or a thin layer of metal, such as Ti, Zr, Ta, Hf, Ce, Al which will oxidize in the reactor water environment. The applied coating provides a protective layer located in between the component surfaces and the reactor water environment. The coating eliminates or minimizes the potential for activated corrosion products that contaminate the reactor water, by reducing and/or eliminating the potential for corrosion on reactor metallic components. PCOPYRIGHT: (C)2009,JPO&INPIT