Al-Pb samples containing 1at%Pb were produced by high-energy ball milling and investigated by high-resolution transmission electron microscopy. The Pb inclusions embedded in an Al matrix exhibited a non-faceted, curved morphology. Dislocations were found to accommodate the misfit of about 22% at the Al-Pb interfaces. Burgers circuits, drawn around these misfit dislocations, exhibited closing failures of the type a/4〈211〉.

HRTEM Observation of Misfit Dislocations at Non-Faceted Al-Pb Interfaces. H.Rösner, J.Weissmüller, G.Wilde: Philosophical Magazine Letters, 2006, 86[10], 623-32