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International Journal of Aerospace Engineering
Volume 2013 (2013), Article ID 737463, 25 pages
Research Article

Global Modeling of N2O Discharges: Rate Coefficients and Comparison with ICP and Glow Discharges Results

DEDALOS Ltd., Vassilissis Olgas 128, 54645 Thessaloniki, Greece

Received 21 May 2013; Revised 13 June 2013; Accepted 14 June 2013

Academic Editor: Linda L. Vahala

Copyright © 2013 Konstantinos Katsonis and Chloe Berenguer. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We developed a Global Model for N2O plasmas valid for applications in various power, gas flow rate, and pressure regimes. Besides energy losses from electron collisions with N2O, it takes into consideration those due to molecular N2 and O2 and to atomic N and O species. Positive atomic N+ and O+ and molecular N2O+, , and have been treated as separate species and also negative O ions. The latter confer an electronegative character to the discharge, calling for modified plasma sheath and plasma potential formulas. Electron density and temperature and all species densities have been evaluated, hence the ionization and dissociation percentages of N2O, N2, and O2 molecules and the plasma electronegativity. The model is extended to deal with N2/O2 mixtures feedings, notably with air. Rate coefficients and model results are discussed and compared with those from available theoretical and experimental work on ICP and glow discharge devices.