Molten metal droplet solidification on a cold substrate is common in many manufacturing processes like

Molten metal droplet solidification on a cold substrate is common in many manufacturing processes like, micro droplet soldering, Atomization, thermal spray deposition, melt spinning, laser surface melting. Among the above process, thermal spraying process is widely used in industry to develop functional coating, e.g. wear and corrosion resistant. In plasma spraying, ceramics powders are injected into a plasma torch where they are heated, melted, and driven towards the surface of a substrate. The main advantage of YSZ powders made up by hollow particles is that, particles undergoes complete melting, with the temperature being quite uniform across the particle. The surface temperature of hollow particles is close to their mean-mass temperature, enabling more correct experimental data regarding the splat and coating formation process