Article

Plasma Chemistry and Plasma Processing

, Volume 16, Issue 3, pp 379-398

Numerical method and composition in multi-temperature plasmas: Application to an Ar-H2 mixture

  • P. AndreAffiliated withLaboratoire Arc Electrique et Plasmas Thermiques, URA CNRS 828, Université Blaise Pascal
  • , M. AbbaouiAffiliated withLaboratoire Arc Electrique et Plasmas Thermiques, URA CNRS 828, Université Blaise Pascal
  • , A. LefortAffiliated withLaboratoire Arc Electrique et Plasmas Thermiques, URA CNRS 828, Université Blaise Pascal
  • , M. J. ParizetAffiliated withLaboratoire Arc Electrique et Plasmas Thermiques, URA CNRS 828, Université Blaise Pascal

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Abstract

To take into account the nonequilibrium between the temperatures (electronic, rotation, vibration, translation) in plasmas, the partition function are modified. Then they are used to determine the concentration in a Gibbs free energy minimization method adopted to a multi-temperature plasma. Their influence oil the results for different temperature hypotheses is quantified. The composition and thermodynamic properties of an Ar-H2 mixture are given and discussed for different temperature nonequilibria.

Key words

Multi-temperature plasmas Ar-H2 mixture plasma composition numerical