EOS measurements of pressure standard materials using laser-driven ramp-wave compression technique

Abstract

To study the EOS of the pressure standard materials using the ramp-wave compression technique as a novel approach different from shock compression has been proposed. Laser-driven ramp-wave compression technique was used to shocklessly (or quasi-isentropically) compress platinum samples to peak longitudinal stress up to 40 GPa. Platinum stress-density data along the ramp-compression path was determined up to 20 GPa from free-surface velocity data of different thickness samples.