Michel Vardelle

TL;DR: In this article, the impact and flattening of single particles on smooth or rough substrates with different tilting is summarized and different diagnostic methods, including imaging, are briefly described.

TL;DR: In this paper, a measurement system consisting of two high speed two-color pyrometers was used to monitor the flattening degree and cooling rate of zirconia particles on a smooth steel substrate at 75 or 150 °C during plasma spray deposition.

TL;DR: In this article, measurements were made of the two-dimensional flow and temperature field in a dc plasma jet under different operating conditions and the particle velocity and the in-flight particle temperature were also measured for narrow cuts of alumina powders, of mean particle diameters of 18, 23, 39 and 46 mum, injected in the jet.

TL;DR: In this paper, the influence of particle parameters at impact and of the substrate temperature on thermomechanical properties of plasma-sprayed zirconia coatings was investigated, through investigations of splat formation, and a one-dimensional splat cooling model was used to predict the splat-substrate thermal contact resistance for each spraying condition.

TL;DR: The cold spray process is an emerging technique that produces high density coatings as mentioned in this paper, where particles are carried by a supersonic gas stream through a de Laval nozzle and, finally, impact on a substrate with high kinetic energy.