High-density dislocations (5 x 108/cm) in diamond crystallites, synthesized by using a chemical vapour deposition method, were studied by electron microscopy. Most of the dislocations, having a Burgers vector of ½<110>, were seen to be undissociated by weak-beam observation and often had a zig-zag shape on a climb-plane. Some dislocations, lying on {111} glide planes, were dissociated into Shockley partials. The stacking-fault energy, estimated from the separation of the partials, was 290mJ/m2. This was substantially the same as that reported for natural diamond. In some crystallites, high-density twins were observed instead of dislocations.

Electron Microscopy Studies of Dislocations in Diamond Synthesized by a CVD Method. K.Suzuki, M.Ichihara, S.Takeuchi, N.Ohtake, M.Yoshikawa, K.Hirabayashi, N.Kurihara: Philosophical Magazine A, 1992, 65[3], 657-64