Shock Synthesis and Characterization of a High-Pressure Phase of TiO₂

Abstract

Different TiO2 precursors were impacted by detonation-driven high velocity flyers to obtain high-pressure phases of titania under instantaneous high temperature and pressure. The factors affecting high-pressure phase synthesis such as loading conditions and titanium dioxide precursors were also studied. The structure and phase composition of the shocked samples are determined by X-ray diffraction (XRD). The microstructure of TiO2 after shock treatment was observed by transmission electron microscopy (TEM).

Computational and Microstructural Stability Analysis of Shock Wave Interaction with NbB2-B4C-Based Nanostructured Ceramics

“…Shock tubes and shock tunnels are the ground test facilities widely utilized to assess the aerodynamic performance of the hypersonic vehicles as well as to develop insights about shock–material interaction. Shock tubes can generate high temperature, pressure, strain rate, rapid heating, and quenching rate, which can be tailored to obtain a wide range of desired flight conditions. , While shock tubes can reproduce most of the flight conditions, namely, Mach number, Reynolds number, total enthalpy, flight time, and shear stress, they fall short in terms of replicating the flight duration . Nevertheless, such investigation will provide significant insight toward understanding the shock–material interaction for improving the material design.…”