Orientation of aluminum particles in the film formed by aerosol deposition: A mathematical model

A simple mathematical model predicting the orientation of flat aluminum particles in the operation of painting flat surfaces with metallic paints is developed. The model is additively composed of separate steps accounting for the collision and deformation of a single drop striking against a solid surface, coalescence between the drop and solid surface, relaxation of the drop after the collision and coalescence, and drying by evaporating its volatile components. The calculations made with the developed model for several paint samples showed the agreement between the calculated results and experimental data.