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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Print: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v3.i2-3.70
pages 221-225

Characterization of the acoustic behavior of an argon plasma torch

J. M. Badie
C. N. R. S., Institut de Science et de Genie des Materiaux et Procedes B. P. 5, Odeillo, F-66125 Font-Romeu Cedex
J. Bresson
L.M.A.I. UNIV. PERPIGNAN, 52 av. de Villeneuve, 66860 Perpignan cedex
A. Daif
I.M.P.-CNRS, BP.5, Odeillo, 66125 Font-Romeu cedex - France
B. Granier
Institut de science et de Genie des Materiaux et Procedes B.P.5 Odeillo 66125 Font - Romeu, France

ABSTRACT

We measured the acoustic frequencies emitted by an argon plasma torch. At constant intensity, acting on the anode - cathode distance, indirectly monitored the arc voltage. The results on the evolution of the observed acoustic frequencies suggest that their position is mainly a function of the arc temperature. The poorness of the arc temperature estimation from enthalpy balance does not allow to ascertain that it is the case. Direct measurements on the arc column must be performed to demonstrate this hypothesis.


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