Equation of State Measurements in Liquid Deuterium to 70 Gpa

[摘要] Using intense magnetic pressure, a method was developed to launch flyer plates to velocities in excess of 20 km/s. This technique was used to perform plate-impact, shock wave experiments on cryogenic liquid deuterium (LD{sub 2}) to examine its high-pressure equation of state (EOS). Using an impedance matching method, Hugoniot measurements were obtained in the pressure range of 30-70 GPa. The results of these experiments disagree with previously reported Hugoniot measurements of LD{sub 2} in the pressure range above {approx}40 GPa, but are in good agreement with first principles, ab-initio models for hydrogen and its isotopes.

[发布日期] 2001-12-01 [发布机构] Sandia National Laboratories

[关键词] 08 Hydrogen;Deuterium;Hydrogen;Shock Waves;Plates