Title :
Equation of state and transport properties of low Z materials at extreme pressure
Author :
Collins, G.W. ; Eggert, J. ; Celliers, P.M. ; Hicks, D. ; Bradley, D. ; Moon, S.J. ; Unites, W. ; Loubeyre, P. ; Jeanloz, R. ; McWilliams, R. ; Lee, K.M.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
Summary form only given. Recent principle Hugoniot, pre-compressed Hugoniot, and multiple shock experiments provide equation of state data for several low Z materials including He, H/sub 2/, carbon, and SiO/sub 2/ over an unprecedented pressure-temperature-density regime. We have observed the evolution of these materials from an insulator, to a fluid metal, to a dense plasma, with increasing pressure and density from .5 to 30 Mbar, compression ratios up to 8 fold, and temperatures up to several eV. We present new equation of state and reflectivity data over this P-rho-T range, the inferred high-pressure chemistry, and implications of these data for planetary science.
Keywords :
carbon; equations of state; fusion reactor materials; helium; high-pressure effects; hydrogen; plasma chemistry; plasma density; plasma pressure; plasma temperature; reflectivity; silicon compounds; 0.5 to 30 Mbar; C; H/sub 2/; He; P-rho-T range; SiO/sub 2/; compression ratio; dense plasma; equation of state; fluid metal; high-pressure chemistry; low Z materials; multiple shock experiment; planetary science; precompressed Hugoniot experiments; principle Hugoniot experiments; reflectivity data; transport properties; unprecedented pressure-temperature-density regime; Electric shock; Equations; Helium; Inorganic materials; Insulation; Metal-insulator structures; Organic materials; Plasma chemistry; Plasma density; Plasma temperature;
Conference_Titel :
Plasma Science, 2004. ICOPS 2004. IEEE Conference Record - Abstracts. The 31st IEEE International Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-8334-6
DOI :
10.1109/PLASMA.2004.1340071
