Oxidation behaviour of Mn-Co spinel coating on AISI 430 ferritic stainless steel with and without Cu in Ar-CO2-H2O atmosphere

AISI 430 ferritic stainless steel is a promising candidate for utilising as interconnects of solid oxide fuel cells due to its cost effectiveness and durability. Many methods applying coating on substrates have been developed in order decrease the degradation oxidation rate chromium volatile problems. Manganese-cobalt spinel exhibits high conductivity, thermal expansion compatible with steels, forms barrier inhibit migration during oxidation. Copper can be added manganese-cobalt improve electrical conductivity coating. This work investigated scale formation Mn-Co Mn-Co-Cu coated samples comparison uncoated steel. The were prepared using electrodeposition technique. was tested at 800℃ Ar-20% CO2-5% H2O 96 h. results showed that both could formed continuous layers. SEM image layer under layer. lower than