Changes in internal friction and dislocation charge in sodium chloride crystals following plastic deformation

摘要

Measurements of the elastic compliance, the internal friction, and the induced dislocation voltage during deformation recovery indicate that the dislocation damping factor remains constant, while pinning and charging of the dislocation core occur by diffusion. The activation energy for charging by diffusion is 0.45 eV and for the pinning process is 0.65 eV.