HYDROPHOBIC COATINGS FOR METALS INCORPORATING ANODIC AND RARE-EARTH OXIDES AND METHODS OF APPLYING S

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A hydrophobic coating and a method for applying such a coating to a surface of a metallic substrate. The method can include anodizing a nanoporous layer of anodic metal oxide on the surface; cathodizing yttrium oxide nanoparticles onto the surface; applying a hydrophobic ceramic coating composition to the surface by an application method selected from the group consisting of : flowing, dipping, and spraying; and heating the coated surface at a cure temperature from about 150° C to about 300° C for at least 2 hours.