Preparation of TiC/Fe composite coating by using sucrose as carbonaceous precursor

In this paper,TiC/Fe composite coatings were synthesized and deposited by reactive flame spray, using a kind of Ti-Fe-C composite powder prepared by carbonizing the mixture of ferrotitanium and sucrose as precursor. XRD,SEM and TEM were employed to analyze the microstructures of the composite powder and the coatings. It is showed that the composite coatings are mainly composed of composite layers,in which the TiC particles are dispersed within the Fe-alloy matrix,and TiC particles in these layers are spherical or nearspherical with the size of 50 nm or so. The volume content of composite layers in the coating is above 60% .