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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/779
Title: The effect of potassium addition on plasma parameters in argon dc plasma arc
Authors: Ranković, Dragan 
Kuzmanović, Miroslav 
Savović, J.
Pavlović, M. S.
Stoiljković, M.
Momčilović, M.
Issue Date: 25-Aug-2010
Journal: Journal of Physics D: Applied Physics
Abstract: 
The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (ne) have been determined from measured radial profiles of Balmer-Hβ spe...
The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (ne) have been determined from measured radial profiles of Balmer-Hβ spectral line. The obtained electron number densities have been used for thermodynamic temperature (T LTE) evaluation with the assumption that the arc plasma is in a state of local thermodynamic equilibrium. The excitation temperatures (T exc) have been determined from the absolute integral emissivity of the argon line at 430.01 nm. For heavy particle temperature (Th) evaluations we have used a power interruption method. The obtainedresults have shown that an addition of KCl decreases both electron number density and temperature of the arc column. The magnitude of suchan influence on plasma parameters increases with an increase in the KCl concentration and decreases with an increase in the arc current. © 2010 IOP Publishing Ltd.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/779
ISSN: 0022-3727
DOI: 10.1088/0022-3727/43/33/335202
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry

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