Experimental Investigation of the Splashing Processes at Impact in Plasma Sprayed Coating Formation

This paper is devoted to an experimental investigation of the different splashing phenomena (impact and flattening) when a plasma sprayed single particle impacts on a flat smooth substrate. This research is carried out using an imaging technique with a fast CCD camera aimed either parallel to the substrate for impact splashing or almost orthogonal to it for flattening splashing. The correlation of the image with the results of a set up allowing to determine particle in flight parameters just prior to their impact allows a better understanding of the splashing processes.