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高温材料处理:国际期刊
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.2015013752
pages 145-152

EVAPORATION OF SINTERED CATHODES IN LOW-PRESSURE ARC DISCHARGES FOR NANOCRYSTALLINE COATINGS SYNTHESIS: EROSION AND CATHODE SPOT CHARACTERISTICS

Olga V. Krysina
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 2/3 Akademichesky Ave., Tomsk, 634055, Russia; Tomsk State University, Tomsk, Russia
I. M. Goncharenko
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 4 Akademicheskii Ave., Tomsk, 634055, Russia
K. A. Koshkin
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 2/3 Akademichesky Ave., Tomsk, 634055, Russia
M. I. Lobach
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 2/3 Akademichesky Ave., Tomsk, 634055, Russia
O. B. Frants
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 2/3 Akademichesky Ave., Tomsk, 634055, Russia
N. V. Landl
Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, 2/3 Akademichesky Ave., Tomsk, 634055, Russia

ABSTRACT

The results of investigation of cathode spot characteristics of composite Ti−Cu system cathodes with different concentration of copper are presented. The cathode spots glow was registered by a high-speed CCD camera. By using the method of high-speed registration, the evolution of cathode spot number was observed and the velocity of a single spot was measured. Also, the cathode erosion rate was determined. Significant disadvantages of the powder Ti−Cu cathodes during coating deposition in vacuum low-pressure arc discharges have not been revealed.