Coble creep

Coble creep refers to a specific mechanism of creep deformation that occurs in materials, particularly ceramics and polycrystalline materials, at elevated temperatures. It is named after the materials scientist R. L. Coble, who characterized this mode of creep in the context of grain boundary sliding in polycrystalline materials. The mechanism of Coble creep involves the movement of atoms along grain boundaries. This is typically observed in materials with a fine-grained microstructure at temperatures close to their melting point.