Micro-Metallurgy of Splats: Theory, Computer Simulation and Experiment

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Abstract

Over the last one and half decades the constantly growing interest to a problem of rapid solidifying the melted micro-droplets of various materials at their impact with a surface has been marked. This phenomenon is at the basis of many technologies, such as plasma, detonation and flame spraying, arc-spray, spray-casting, micro-atomization of powders, solder-drop-printing in microelectronic, making the microcrystal and amorphous materials, and producing the high-temperature superconductors. The system micro-droplet - substrate is very suitable for a physical materials science in studies of the non-equilibrium phase diagrams of different alloys and composite materials under extreme conditions. Practically speaking we have dealings with independent scientific and technological line of investigation - micro-metallurgy of a small volume of melt at its collision with an obstacle surface or, in other words, splats’ micro-metallurgy. The paper presented is devoted to a brief review of theoretical, computational and experimental investigations carried out by composite authors during the last decade.

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