A Thermal Coating Process Using Self-Propagating High-Temperature Synthesis Assisted Flame Spray Coating Process

Fe-Al2O3 composite coating was deposited by self-propagating high-temperature synthesis (SHS) assisted flame spray coating process. The green composite paste were prepared by mixing precursors powder of Fe2O3, Al and Al2O3 on the substrate. The steel plate was used as a substrate and coated with the green composite paste. The SHS reaction of the coated green composite was ignited by oxy-acethylene flame. The reaction between precursors happen step by step along with the coated green composite length, to form Fe-Al2O3 composite coating. The Fe-Al2O3 composite coating was characterized by SEM and EDS. The successful of this process create a novel path for thermal coating process.