Simulation of Nanodroplet Impact on an Oblique Surface in Nano Coating Processes by Molecular Dynamics

Nanoparticle coatings have wide range applications in industries. Many surfaces are placed obliquely in front of the spray nozzle that nanodrops collide oblique with the surface. In this paper, the impact of nanodroplets on an oblique surface has been simulated by means of molecular dynamics. Particular attention has been paid to the study of the spreading on the various angles and impact velocities. The results show that nanodroplet spread has increased slightly by increasing the collision angle, but increased greatly with increasing velocity. The results show that the effect of thermal spraying parameters, such as speed and angle of incidence in plasma spraying, is not applicable in the case of nano coating. These results can be used to predict nano coating state as well as to reduce the cost of experiments or study the new processes in these dimensions.