Production of Dislocations During Growth from the Melt

Abstract

The segregation of solute on a microscopic scale during crystal growth leads to the introduction of dislocation lines into the crystal at the bounding surfaces of the segregate. A layer type of segregate resulting from platelet growth leads to dislocation densities of 10³−10⁶ lines/cm². A cellular type of segregation resulting from cellular or dendritic growth leads to dislocation densities of 10⁶−10⁸ lines/cm² in the crystal.