Electrical conductivity of warm dense silica from double-shock experiments.

ABSTRACT: Understanding materials behaviour under extreme thermodynamic conditions is fundamental in many branches of science, including High-Energy-Density physics, fusion research, material and planetary science. Silica (SiO₂) is of primary importance as a key component of rocky planets' mantles. Dynamic compression is the most promising approach to explore molten silicates under extreme conditions. Although most experimental studies are restricted to the Hugoniot curve, a wider range of conditions must be reached to distill temperature and pressure effects. Here we present direct measurements of equation of state and two-colour reflectivity of double-shocked α-quartz on a large ensemble of thermodynamic conditions, which were until now unexplored. Combining experimental reflectivity da

SUBMITTER: Guarguaglini M 

PROVIDER: S-EPMC7865001 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature