High-resolution transmission electron microscopic observations and atomistic simulations were found to be in qualitative agreement, and both showed that the width of the dissociated 9R boundary phase could vary with time. This effect appeared to be a response to far-field strains in the bi-crystalline samples. The boundary structure was therefore expected to depend sensitively upon the local mechanical loading state. This raised questions concerning the nature of the transition regions between differing states of rigid-body displacement.

G.H.Campbell, D.K.Chan, D.L.Medlin, J.E.Angelo, C.B.Carter: Scripta Materialia, 1996, 35[7], 837-42