Macroscopic plastic deformation of Si single crystals was achieved at RT and 150C under a confining pressure of 5GPa in a multi-anvil apparatus. Transmission electron microscopic observations of a sample deformed at 150C showed that the deformation microstructure consisted of dislocations, with a/2<110> Burgers vector in (111) planes, which were undissociated. They appeared as mainly aligned along the screw orientation and <112> orientations at 30° from the Burgers vector. Those features were analyzed in the light of perfect dislocation generation in the shuffle set.

Plastic Deformation of Si at Low Temperature under High Confining Pressure. J.Rabier, P.Cordier, J.L.Demenet, H.Garem: Materials Science and Engineering A, 2001, 309-310, 74-7