The interfaces of Cu/(111)MgO and Pd/(111)MgO systems, which had a cube-on-cube relationship, were produced by internal oxidation and were studied by means of high-resolution transmission electron microscopy. Localized dislocations were observed in the interfaces of both systems. The atomic structures of the metal/oxide interfaces were deduced from through-focus sequences of high-resolution images. The terminating lattice plane in the interface was the O lattice plane, which was composed of distorted structural units of Cu2O or PdO. The junction dislocations resembled those, in grain boundary facets, which were related to differences in the rigid-body translations between 2 energetically equivalent {111} facets in the interfaces. The Burgers vector of the junction dislocation was 1/6<112>, and an associated stacking fault was found in the metal matrix.

F.R.Chen, L.Chang, S.K.Chiou, C.S.Hong: Materials Science Forum, 1995, 189-190, 373-80