Effect of Process Parameters on the Deposition Characteristics of a Bronze-20 vol.% Diamond Composite in Kinetic Spraying

The aim of this study was to ascertain the optimal process parameters that minimized compositional variation between the original powder mixture and composite coating. A bronze- 20 vol.% diamond composite powder was deposited by a kinetic spraying process with various feed rates, spraying distances and particle velocities. Experimental results showed that the diamond fraction, deposition efficiency and bond strength were dependent on process parameters, in particular, the particle velocity.