Abstract
Multi-component diffusion coefficients are calculated for a seven species model of nitrogen plasma under thermal non-equilibrium following the first order perturbation technique of Chapman and Enskog. Binary, thermal, thermal ambipolar, general and general ambipolar diffusion coefficients are presented over electron temperatures ranging from 300 to 50,000 K and thermal non-equilibrium parameter (Te/Th) ranging from 1 to 5. Considering large volume of data, binary, general and general ambipolar diffusion coefficients are presented only for atmospheric pressure. Thermal and thermal ambipolar diffusion coefficients are presented for pressures ranging from 0.1 to 2 atm. The results are compared with published experimental and theoretical data. Necessary electronic levels, associated transition data and collision integrals are collected from recent literature. Details of behaviour of each of the coefficients are presented.
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Acknowledgments
The authors wish to thank Dr. L.M. Gantayet, Director, BTDG, BARC for his encouragement and support. One of the authors (S. Ghorui) is thankful to Prof. E. Pfender and Prof. J.V.R. Heberlein for many useful discussions on the subject during his post-doctoral studies at the University of Minnesota.
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Meher, K.C., Tiwari, N., Ghorui, S. et al. Multi-Component Diffusion Coefficients in Nitrogen Plasma Under Thermal Equilibrium and Non-equilibrium Conditions. Plasma Chem Plasma Process 34, 949–974 (2014). https://doi.org/10.1007/s11090-014-9541-5
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DOI: https://doi.org/10.1007/s11090-014-9541-5