Phase investigation in Sn with plate impact and isentropic compression experiments with preheating devices.

For nearly two decades, the CEA Gramat operates several gas guns for shock loading and high pulsed power (HPP) drivers dedicated to Isentropic Compression Experiments (ICE) up to several GPa. These experimental devices associated with diagnostics (velocimetry and temperature measurements) help to collect new experimental data to study kinetics under dynamic transition in a more rigorous manner verified on various compression paths and contribute to constrain equation of state (EOS) models. Loading metallic materials from various non ambient initial temperatures can significantly extend the range of our studies into previously unexplored thermodynamic paths.

Several results on shock loading at various initial temperatures and on isentropic compression on the new HPP drivers ICE16 contribute to explore the phase diagram of Tin and the influence of the structure with the use of single crystals and polycrystalline Tin samples.