A. I. Bushma, Y. S. Borisov, I. V. Krivtsun, The E.O. Paton Electric Welding Institute, Kiev, Ukraine
A mathematical model for simulation of the fine-sized ceramic particles motion and heating in plasma and laser spraying, as well as applied to a novel process – hybrid laser-plasma spraying, is proposed. The trajectories, velocities and temperature fields of the fine-sized SiO2 particles, being sprayed using Ar-plasma jet, CO2-laser beam and their combination, have been calculated. The essential influence of the spraying method on the time-spatial distribution of temperature in the spray particles has been demonstrated.
