In this research Crofer22APU steel, as an interconnect material, has synthesized by mechanical alloying. Pressing and sintering were applied to produce a sample with low porosity (3.55%). At high temperatures, oxidation reduces the efficiency of Crofer interconnects. In order to prevent growth of oxide layers, samples were coated by spinel coating (Mn,Co) 3 O 4 . A thin layer of Mo and Co was electrodeposited on samples. Electrodeposition is low cost and incompatible with samples shape. Subsequent oxidation was performed at 800 o C, the temperature at which a fuel cell works, to produce spinel structures on the surface. EDS analysis at cross section revealed that the spinel coating has effectively prevented chrome to evaporate. Moreover, uncoated sample has electrical resistance 19.76 times more than coated sample. This shows that the spinel coating can intensively reduce the electrical resistance of the samples. Keywords: Solid Oxide Fuel Cell, Interconnect, Electrodeposition, Spinel, (Mn,Co) 3 O 4
