Mesoscopic Effects of Interfacial Thermal Conductance during Fast Pre-Melting and Melting of Metal Microparticles

Interfacial thermal conductance (ITC) affects heat transfer in many physical phenomena and is an important parameter for various technologies. The article considers the influence of mesoscopic effects on ITC, such as through gas gap, near-field radiative transfer, changes wetting behavior during melting. Various contributions to ITC liquid-solid interfaces processes fast pre-melting melting metal microparticles are studied. effective distance between materials contact a key determining ITC. This significantly phase transformations materials. An unusual gradual change recently observed below point some metals discussed. process does not occur surface but volumetric microstructure determines magnitude dispersion forces, distance, conductance. knowledge gained can be useful understanding optimizing technological processes, laser additive manufacturing.