Elastic Interaction of Point Defects with a Precipitation near a Solid Surface or an Interface

Abstract

AbstractThe paper deals with elastic interaction between point defects and a precipitate (region of precipitation) under the immediate influence excerted on the defects by an interface or a surface of the solid. A formula is presented taking into account an additional internal mechanical structure of the precipitation, such as variations of concentration or local dilatations. It is shown that the elastic interaction energy between point defect and precipitation can exceed the interaction energy between point defect and interface. Conclusions with respect to drift diffusion of point defects towards the defected region follow.