Droplet Erosion of a Cathode in a High-Current Vacuum Arc

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 sur...

Full description

Saved in:
Bibliographic Details
Published inTechnical physics letters Vol. 45; no. 4; pp. 391 - 394
Main Authors Zabello, K. K., Logachev, A. A., Poluyanova, I. N., Shkol’nik, S. M.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.04.2019
Springer Nature B.V
Subjects
Cathodes
Classical and Continuum Physics
Droplets
Electric arcs
Erosion
High current
Magnetism
Physics
Physics and Astronomy
Plasma
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785019040333