Determination of the power lost by conduction into the cathode at low current arc

The power lost by conduction into copper, silver and tungsten cathodes, surrounded by water-cooled brass, was determined experimentally for prolonged short arcs (0.4-1 mm) at low current (2.6-5 A) in argon at 1 atm. The method consists of measuring the temperature reached in the steady state at diff...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 1995-09, Vol.28 (9), p.1883-1887
Main Authors: Salihou, H, Abbaoui, M, Lefort, A, Auby, R
Format: Article
Language:English
Subjects:
Arcs, sparks, lightning
Electric discharges
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma Physics
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Summary:The power lost by conduction into copper, silver and tungsten cathodes, surrounded by water-cooled brass, was determined experimentally for prolonged short arcs (0.4-1 mm) at low current (2.6-5 A) in argon at 1 atm. The method consists of measuring the temperature reached in the steady state at different points distributed along the electrode axis, fitting the values obtained and calculating the power supplied to the cathode surface facing the column. (Original abstract-amended)
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/28/9/016