PARTITION FUNCTIONS AND THERMODYNAMIC PROPERTIES OF ARGON PLASMA
The equilibrium chemical composition and the thermodynamic properties of argon plasmas were calculated for five pressures (0.1, 0.5, 1.0, 2.0, and 5.0 atm) at 100 K deg increments for the temperature range 5000 to 35,000 deg K. The argon plasma is assumed to be a perfect gas complex consisting of six components, namely electrons, argon atoms, and the first four argon ions. The partition functions for these were calculated using tabulated data for observed atomic energy levels and estimated energies for energy levels that are predicted although not observed. The partition functions were terminated by application of the Debye cutoff criterion and a corresponding lowering of the ionization potential was included. The calculated data are preserted in graphical form and the method followed in calculating the partition functions is evaluated. (auth)
- Research Organization:
- Northwestern Univ., Evanston, Ill.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-036779
- OSTI ID:
- 4637532
- Journal Information:
- Physics of Fluids (U.S.), Journal Name: Physics of Fluids (U.S.) Vol. Vol: 6; ISSN PFLDA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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