The Effect of Severe Plastic Deformations on Phase Transitions and Structure of Solids

Abstract

This paper presents data on the study of phase transitions in solids under pressure with shear deformation. Carbon, silicon and zirconium were used as model substances. The studies were carried out by electron microscopy and optical (Raman) spectroscopy. A description of a high pressure diamond anvil shear cell is also provided.

Fig. 6 Twins along the twinning plane (111) in silicon after pressure treatment under deformation conditions: (a) - twins; the rectangles enclose the fragments of the SiIV hexagonal phase; (b) - FFT from same point, Ref. 49).