The morphology of (01•2) twins was studied. It was found that the twin boundaries usually comprised 3 types of interface. These were straight parts which were parallel to the Kl (01•2) composition plane, growing parts which involved a series of geometrically well-defined steps that were separated by (01•2) boundary portions, and the tip -which was shown to adopt a {01•2}-type plane that was perpendicular to Kl. The defects which were associated with these 3 types of boundary were analyzed. Particular attention was paid to the twinning dislocations which were found in the growing parts, and to the dislocation configuration of the twin front.

S.Lay, G.Nouet: Philosophical Magazine A, 1995, 72[3], 603-17