In-flight particle behaviour and its effect on co-spraying of alumina？titania

The present paper investigate and illustrate the importance of plasmaparticle interaction in controlling the plasma spray processwhile spraying aluminatitania powder blend. Plasma sprayed coatings of aluminatitania (6040l m) have been prepared at dier-chemical composition of aluminatitania coatings, prepared at low input power, is signicantly dierent from that of the feed stockpowder. Coating composition progressively approaches that of the feedstock powder at higher power inputs. Experimental resultsare explained in terms of the in-ight behaviour of alumina and titania particles in the plasma jet using a one-dimensional model topredict the thermal state of the particles. In particular, the eect of particle size and input power are considered in this study. KCI Citation Count: 8