Electrical Conductivity and Equation of State of Liquid Nitrogen, Oxygen, Benzene, and 1-Butene Shocked to 60 GPa

摘要

Measurements are reported for the electrical conductivity of liquid nitrogen (N sub 2 ), oxygen (O sub 2 ) and benzene (C sub 6 H sub 6 ), and Hugoniot equation of state of liquid 1-butene (C sub 4 H sub 8 ) under shock compressed conditions. The conductivity data span 7 x 10 sup -4 to 7 x 10 sup 1 omega sup -1 cm sup -1 over a dynamic pressure range 18.1 to 61.5 GPa and are discussed in terms of amorphous semiconduction models which include such transport phenomena as hopping, percolation, pseudogaps, and metallization. Excellent agreement is found between the equation-of-state measurements, which span a dynamic pressure range 12.3 to 53.8 GPa, and Ree's calculated values which assume a 2-phase mixture consisting of molecular hydrogen and carbon in a dense diamond-like phase. There is a 2-1/2 fold increase in the thermal pressure contribution over a less dense, stoichiometrically equivalent liquid. 90 refs., 48 figs., 8 tabs. (ERA citation 12:005824)