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Cathode Spots of Vacuum Arc Discharges
Author(s) -
Bystrov Yu. A.,
Kostrin D. K.,
Lisenkov A. A,
Vetrov N. Z.
Publication year - 2015
Publication title -
vakuum in forschung und praxis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 13
eISSN - 1522-2454
pISSN - 0947-076X
DOI - 10.1002/vipr.201500578
Subject(s) - cathode , vacuum arc , arc (geometry) , electric arc , plasma , plasma arc welding , materials science , spots , chemistry , electrode , analytical chemistry (journal) , atomic physics , mechanical engineering , engineering , physics , chromatography , quantum mechanics
Vacuum arc discharge is used for formation of pure metal and complex combined coatings, and also for the impact of the discharge on a surface to remove superficial contaminants. Physical processes observed in an arc discharge are mostly determined by the behavior of cathode spots, which are fundamentally unstable plasma formations and are characterized by a certain value of average lifetime. Reliable stabilization of the cathode spots and controlling their movements on the working surface grants the technology a grater importance in application.