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- Title
Measurement of density, temperature, and electrical conductivity of a shock-compressed nonideal nitrogen plasma in the megabar pressure range.
- Authors
Mochalov, M. A.; Zhernokletov, M. V.; Il'kaev, R. I.; Mikhailov, A. L.; Fortov, V. E.; Gryaznov, V. K.; Iosilevskiy, I. L.; Mezhevov, A. B.; Kovalev, A. E.; Kirshanov, S. I.; Grigor'eva, Yu. A.; Novikov, M. G.; Shuikin, A. N.
- Abstract
Kinematic and thermodynamic parameters of shock-compressed liquid nitrogen are measured behind the front of a plane shock wave using plane wave and hemispherical shock wave generators. In these experiments, high values of compression parameters (shock-compressed hydrogen density? ≈ 3.25 g/cm3 and temperature T≈ 56000 K at a pressure of P ≈ 265 GPa) are attained. The density, pressure, temperature, and electrical conductivity of the nonideal plasma of shock-compressed liquid nitrogen are measured. A nearly isochoric behavior of the nitrogen shock adiabat is observed in the pressure range P = 100–300 GPa. The thermodynamics of shock-compressed nitrogen is an alyzed using the model of the equation of state in the quasi-chemical representation (SAHA code) as well as the semiempirical wide-range equation of state developed at the Institute of Experimental Physics. Experimental results are interpreted on the basis of calculations as the fixation of the boundary of transition of shock-compressed nitrogen from the polymer phase to the state of a strongly nonideal plasma at P ≈ 100 GPa, ? ≈ 3.4 g/cm3.
- Subjects
KINEMATICS; THERMODYNAMICS; ELECTRIC conductivity; NITROGEN plasmas; POLYMERS
- Publication
Journal of Experimental & Theoretical Physics, 2010, Vol 110, Issue 1, p67
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776110010097