FEATURES OF PHASE TRANSFORMATIONS IN QUARTZ UNDER ACTION OF SPHERICAL CONVERGING SHOCK WAVES
Experiment on shock wave loading of the natural quartz sphere has been made. Phase state and structure of specimen after loading have been studied using X-ray diffraction,optical microscopy, and Raman-scattering methods. It has been established that zones with a different structural and phase states are formed in the sphere as a result of shock action. Deformation of quartz occurs in peripheral zone that leads to formation of diaplectic glass at approaching the central zone. In the central zone, presence of lechatelierite is observed after loading.