Dynamics of the material ejection in a dipolar arc in continuous regime

Electrical and fast imaging measurements are performed on an experimental device designed to study the dynamics of electric arcs in the DC regime. The work presented here investigates the relationship between electrical fluctuations and material ejection from the electrode surface. Cross-analysis of...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2024-10, Vol.57 (42), p.425201
Main Authors: Hellé, A, Hugon, R, Brochard, F, Chouchene, S, Marcos, G, Moritz, J, Schweitzer, P
Format: Article
Language:English
Subjects:
arc plasma
electric arc
fast camera
material ejection
particle tracking
Physics
plasma diagnostic
Plasma Physics
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Summary:Electrical and fast imaging measurements are performed on an experimental device designed to study the dynamics of electric arcs in the DC regime. The work presented here investigates the relationship between electrical fluctuations and material ejection from the electrode surface. Cross-analysis of the electrical and imaging data reveals a significant correlation between electrical fluctuations in the kHz range and particle emission from the electrode surface. Different types of ejection are presented and a study of the dynamics of the ejected particles is carried out through the analysis of a statistically significant number of trajectories.
ISSN:0022-3727
1361-6463
DOI:10.1088/1361-6463/ad6274