Patent ID: 6827796
Filing Date: 2004-12-07
Classification: C22C,C23C

Abstract:
A method of making a high strength alloy, the method comprising the steps of:depositing a Group VIB transition metal in a primary film by physical vapor deposition or chemical vapor deposition on a substrate; using the same deposition method to deposit an adherent film of silicon carbide having a crystal habit different from the body-centered-cubic habit of the metal of the primary film and having limited solubility or reactivity with respect to said body-centered-cubic metal at the deposition and use temperatures of the alloy; wherein the deposited film of said silicon carbide is of a thickness sufficient to arrest the growth of the crystallites of the primary film and prevent epitaxial growth between adjoining primary microcrystalline films; and repeating the alternate deposition of the adherent Group VIB transition metal films and the adherent silicon carbide films until a plurality of such alternate films is made to the required thickness of the coating or body.