The equation of state of dense argon: A comparison of shock and static studies

New static high pressure measurements for room temperature solid argon to 800 kbar are in excellent agreement with one predicted from a theoretical reduction of shock wave data. The results demonstrate the agreement between shock and static techniques even in cases where shock temperatures are extremely high and a large thermal correction is required to reduce the Hugoniot to an isotherm. The results suggest that solid argon may provide a useful static pressure standard up to about 3–4 Mbar.