Patent ID: 7776131

Claim:
A manufacturing method for an oxide-dispersed alloy in which dispersed particles comprising oxides of one or two or more kinds of additive metals are dispersed in a matrix metal, comprising the steps of: (a) manufacturing an alloy powder or an alloy wire rod comprising a matrix metal and an additive metal; (b) oxidizing the additive metal in the alloy powder or alloy wire rod with water to form dispersed particles by introducing the alloy powder or alloy wire rod into an attritor with water, and by agitating the alloy powder or alloy wire rod therein; and (c) solidifying the alloy powder or alloy wire rod via heat and pressure, after oxidation; wherein the matrix metal consists of one or two or more metals of gold, silver, platinum, palladium, iridium, rhodium, and ruthenium, and the additive metal is titanium, zirconium, hafnium, scandium, yttrium, magnesium, calcium, strontium, barium, aluminum, silicon, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, or holmium.