Droplet Erosion of a Cathode in a High-Current Vacuum Arc
- Authors: Zabello K.K.1, Logachev A.A.1, Poluyanova I.N.2, Shkol’nik S.M.1
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Affiliations:
- Ioffe Physical Technical Institute, Russian Academy of Sciences
- Switchgear Design Bureau LTD
- Issue: Vol 45, No 4 (2019)
- Pages: 391-394
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208285
- DOI: https://doi.org/10.1134/S1063785019040333
- ID: 208285
Cite item
Abstract
It is shown that high-current vacuum arcs accompanied by partial melting of the cathode surface and its droplet erosion can generate, in addition to the well-known droplets formed immediately in the cathode spot (first type droplets), a second component of erosion. The liquid part of the cathode surface can emit droplets with significantly different sizes and velocities, which may be called second type droplets. The mechanisms of the formation of first and second type droplets are also substantially different.
About the authors
K. K. Zabello
Ioffe Physical Technical Institute, Russian Academy of Sciences
Author for correspondence.
Email: zabellok@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. A. Logachev
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: zabellok@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. N. Poluyanova
Switchgear Design Bureau LTD
Email: zabellok@mail.ioffe.ru
Russian Federation, Sevastopol, 299053
S. M. Shkol’nik
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: zabellok@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021