MANUFACTURING METHOD OF THE OXIDE DISPERSED PLATINUM MATERIAL USING A THERMAL SPRAY PROCESS

A preparation method of an oxide dispersion strengthened platinum material using a thermal spray coating process is provided to prepare a platinum material with improved mechanical properties at high temperatures and reduce preparation costs and preparation time as compared with conventional methods by sequentially performing post processes of the porous sheet after easily manufacturing a porous sheet through the thermal spray coating process. A preparation method of an oxide dispersion strengthened platinum material using a thermal spray coating process comprises: a step(S1) of adding metal elements with a target composition to platinum, and vacuum melting the mixture to manufacture an ingot; a step(S2) of manufacturing the ingot into a wire through swaging and drawing; a step(S3) of thermal spray coating the wire in a graphite mold master to manufacture a porous thermal spray coated sheet; a step(S4) of separating the thermal spray coated sheet from the mold master, and subjecting the thermal spray coated sheet to an atmospheric heat treatment to remove a carbon sheet from the thermal spray coated sheet; a step(S5) of performing hot forging and heat treatment of the carbon sheet-removed thermal spray coated sheet to obtain a reinforced platinum material with a specific gravity near the theoretic specific gravity; and a step(S6) of performing cold rolling and heat treatment of the reinforced platinum material.