Method for generating Co-MnO-TiO2 composite layer and spinel high-temperature anti-oxidation coating on stainless steel substrate

Abstract

The invention discloses a method for generating a Co-MnO-TiO2 composite layer and a spinel high-temperature anti-oxidation coating on a stainless steel substrate, which solves the difficulty of co-deposition of Ti, Mn and Co metals in an aqueous solution through dispersed nano TiO2 and high-current deposited MnO oxide, thereby obtaining the Co-MnO-TiO2 (Co-based) composite layer. The MnCo < 2-x > Ti < x > O < 4 > composite spinel coating formed by the invention can improve the high-temperature oxidation resistance of the ferritic stainless steel connector, solve cathode Cr poisoning caused by external diffusion of Cr in stainless steel, and improve the high-temperature conductivity of the ferritic stainless steel connector.

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