Solid-state particle deposition is expected to be a novel material process for producing micrometer-order coatings to centimeter-order thick components by collisional stacking of particles without melting. This research project aims to examine such processes as a series of nano-mechanochemical phenomena, such as the ultrafast deformation of materials occurring in the nanoregion of a solid-state bonding interface. The corresponding chemical changes and the physicochemical phenomena associated

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... h bonding have been analyzed. This research project challenges the practice of extending the mechanics of the materials to explain nano-mechanochemical phenomena that integrate deformation and chemical reactions in micromaterials. In this article, we review the current progress in the solid-state particle deposition process and introduce a direction for this direction.