The Interaction of Migrating Liquid Inclusions with Grain Boundaries in Solids
A liquid droplet on a planar grain boundary in a solid is in a position of minimum energy since the grain boundary area must increase if the droplet moves away. Thus a droplet migrating through a polycrystalline solid may either penetrate or be trapped by a grain boundary, depending on whether or not the applied driving force on the droplet is sufficient to propel the droplet out of the energy valley associated with a grain boundary.
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