Abstract
In plasma spraying, the properties of the plasma-forming gas largely control the characteristics of the plasma jet and the momentum, heat, and mass transfers to the particles injected in the flow. The objective of this work was to investigate the effect of gas composition on the static and dynamic behaviors of the plasma jet. The latter behaviors were investigated from measurements of arc voltage and plasma jet velocity. Ternary gas mixtures of argon, helium, and hydrogen were used. The results were expressed as correlations between arc voltage and flow velocity, and the operating parameters of the gun for a specific nozzle diameter.
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References
M.I. Boulos, P. Fauchais, and E. Pfender, Thermal Plasma: Fundamental and Applications, Vol 1, Plenum Press, 1994
D. Nicoud, J.M. Léger, P. Fauchais, and A. Grimaud, Air Liquide European Patent EP 0451051 A1, 1991
B. Pateyron and G. Delluc, ADEP Data Bank of University of Limoges and CNRS, Direction des Bibliothèques, des Musées et de l’Information Scientifique et Technique, 1986
A. Vardelle, “Numerical Study of Heat, Momentum and Mass Transfers between an Arc Plasma at Atmospheric Pressure and Solid Particles,” master’s thesis, University of Limoges-France, No. 29, 1987 (in French)
M.P. Planche, P. Fauchais, J.F. Coudert, O. Betoule, and H. Valetoux, Comparison of D.C. Plasma Jet Velocity Distributions for Different Plasma Gas Mixtures: Ar-H2, Ar-He, Ar-He-H2, Proc. of the Seventh National Spray Conf.: Thermal Spray Industrial Applications, C.C. Berndt and S. Sampath, Ed., ASM International, 1994, p 349–353
S.A. Wutzke, E. Pfender, and E.C. Eckert, Study of Electric-Arc Behavior with Superimposed Flow, AIAA J., Vol 5 (No. 4), 1967, p 707–717
E. Pfender, J. Fincke, and R. Spores, Entrainment of Cold Gas into Thermal Plasma Jets, Plasma Chem. Plasma Process., Vol 11 (No. 4), 1991, p 529–543
M.P. Planche, “Contribution to the Study of a Plasma Gun: Application to the Arc Dynamic and the Measurements of Plasma Flow Velocity,” Ph.D. dissertation, University of Limoges-France, No. 37, 1995 (in French)
M.P. Planche, J.F. Coudert, and P. Fauchais, Velocity Measurements for Arc Jets Produced by a D.C. Plasma Spray Torch, Plasma Chem. Plasma Process., Vol 18 (No. 2), 1998, p 263–286
J.F. Coudert, M.P. Planche, and P. Fauchais, Velocity Measurement of D.C. Plasma Jets Based on Arc Root Fluctuations, Plasma Chem. Plasma Process., Vol 15 (No. 1), 1995, p 47–70
A. Vardelle, P. Fauchais, B. Dussoubs, and N.J. Themelis, Heat Generation and Particle Injection in a Thermal Plasma Torch, Plasma Chem. Plasma Process., Vol 18 (No. 4), 1998, p 551–578
S.C. Snyder, A.B. Murphy, D.L. Hofeldt, and L.D. Reynolds, Diffusion of Atomic Hydrogen in an Atmospheric Pressure Free-Burning Arc Discharge, Phys. Rev. E, Vol 52 (No. 3), 1995, p 2999–3009
O.I. Yas’ko, Correlation of the Characteristics of Electric Arcs, Brit. J. Appl. Phys., Vol 2, 1969, p 733–742
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Janisson, S., Meillot, E., Vardelle, A. et al. Plasma spraying using Ar-He-H2 gas mixtures. J Therm Spray Tech 8, 545–552 (1999). https://doi.org/10.1361/105996399770350232
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DOI: https://doi.org/10.1361/105996399770350232