A new global hydrogen equation of state model
Simple statistical mechanics models have been assembled into a wide-range equation of state for the hydrogen isotopes. The solid is represented by an Einstein-Grtineisen model delimited by a Lindemann melting curve. The fluid is represented by an ideal gas plus a soft-sphere fluid configurational term. Dissociation and ionization are approximated by modifying the ideal gas chemical-equilibrium formulation. The T = 0 isotherm and dissociation models have been fitted to new diamond-anvil isotherm and laser-generated shock data. The main limitation of the model is in ionization at high compression.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP)
- DOE Contract Number:
- W-7405-Eng-48
- OSTI ID:
- 12574
- Report Number(s):
- UCRL-JC-134713; DP0102052; ON: DE00012574
- Resource Relation:
- Journal Volume: 505; Conference: 11th Topical Conference on Shock Compression of Condensed Matter, Snowbird, UT, June 27-July 2, 1999
- Country of Publication:
- United States
- Language:
- English
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