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Zhurnal Tekhnicheskoi Fiziki, 2021, Volume 91, Issue 11, Pages 1649–1654
DOI: https://doi.org/10.21883/JTF.2021.11.51524.114-21 (Mi jtf4887) 		 
Plasma

Cathode erosion in a gas arc discharge at the threshold currents

A. M. Murzakaev

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
Full-text PDF (1730 kB)
DOI: https://doi.org/10.21883/JTF.2021.11.51524.114-21
Abstract: The results of experimental studies of the erosion rate of high-purity tungsten cathodes after pulsed arc discharges in a pure oil-free ultrahigh vacuum and in gases of various purities are reported. The erosion rate in high-purity argon does not change compared to the rate of erosion of electrodes in a pure oil-free vacuum. The rate of erosion in “technical” argon is 10% less than the rate of erosion of electrodes in an oil-free vacuum. The rate of erosion in “technical” nitrogen is 15–35% less than the rate of erosion of electrodes in vacuum. Particle sizes formed in gas arcs are smaller than those formed in vacuum arcs.
Keywords: arc in gas, erosion rate, ecton mechanism, particles, electron microscopy.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation AAAA-A18-118030290007-5
AAAA-A18-118030290006-8
Received: 20.04.2021
Revised: 16.06.2021
Accepted: 17.06.2021
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. M. Murzakaev, “Cathode erosion in a gas arc discharge at the threshold currents”, Zhurnal Tekhnicheskoi Fiziki, 91:11 (2021), 1649–1654
Citation in format AMSBIB
\Bibitem{Mur21}
\by A.~M.~Murzakaev
\paper Cathode erosion in a gas arc discharge at the threshold currents
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2021
\vol 91
\issue 11
\pages 1649--1654
\mathnet{http://mi.mathnet.ru/jtf4887}
\crossref{https://doi.org/10.21883/JTF.2021.11.51524.114-21}
\elib{https://elibrary.ru/item.asp?id=46638323}
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