Erosion of vacuum arc cathodes in the microsecond range of pulse duration | Izvestiya vuzov. Fizika. 2025. № 12. DOI: 10.17223/00213411/68/12/14

Erosion of vacuum arc cathodes in the microsecond range of pulse duration

The results of measuring the specific erosion of vacuum arc cathodes at pulse durations from 1 to 550 μs are presented. It is shown that the erosion of materials with a melting point of more than 500 °C does not depend on the pulse duration and is in the range of (30 - 100) μg/C, and the erosion of cathodes with a melting point of less than 500 °C corresponds to this range only at a pulse duration of less than 10 μs. At arc pulse durations of 250 - 550 μs, the erosion for these materials reaches abnormally high values of 500 - 1000 μg/C. It is shown that this is due to an increase in the droplet fraction during melting of the cathode surface to a depth of tens of micrometers during an arc pulse.

Download file

Counter downloads: 1

Keywords

vacuum arc, specific erosion, cathode spot, microparticle fraction

Authors

Name	Organization	E-mail
Nikolaev Alexey G.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	agnikolaev@hcei.ru
Bugaev Alexey S.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	bugaev@hcei.ru
Gridilev Vadim D.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	gridilow@mail.ru
Gushenets Vasily I.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	gvi@hcei.ru
Oks Efim M.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	oks@hcei.ru
Prokopenko Nikita A.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	nick08_phantom@mail.ru
Yushkov Georgy Yu.	Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences	gyushkov@hcei.ru

Всего: 7

References

Иванов Ю.Ф., Шляров В.В., Аксенова К.В. и др. // Изв. вузов. Физика. - 2023. - Т. 66. - № 7. - С. 74-82. - DOI: 10.17223/00213411/66/7/9.

Шаркеев Ю.П., Рябчиков А.И., Козлов Э.В. и др. // Изв. вузов. Физика. - 2004. - Т. 47. - № 9. - С. 44-52.

Браун Я.Г. // Изв. вузов. Физика. - 2020. - Т. 63. - № 10. - С. 136-143. - DOI: 10.17223/00213411/63/10/136.

Oztarhan A., Brown I., Bakkaloglu C., et al. // Surf. Coat. Technol. - 2005. - V. 196. - P. 327-332. - DOI: 10.1016/j.surfcoat.2004.08.178.

Jüttner B. // J. Phys. D: Appl. Phys. - 2001. - V. 34. - P. R103-R123. - DOI: 10.1088/0022-3727/34/17/202.

Mesyats G.A. // IEEE Trans. Plasma Sci. - 1995. - V. 23. - P. 879-883. - DOI: 10.1109/27.476469.

Месяц Г.А. Эктоны в вакуумном разряде: пробой, искра, дуга. - М.: Наука, 2000.

Daalder J.E. // J. Phys. D. Appl. Phys. - 1975. - V. 8. - P. 1647-1659. - DOI: 10.1088/0022-3727/8/14/009.

Liu F., Dickinson M.R., MacGill R.A., et al. // Surf. Coat. Technol. - 1998. - V. 103/104. - P. 46-51. - DOI: 10.1016/S0257-8972(98)00373-9.

Kimblin C.W. // J. Appl. Phys. - 1973. - V. 44. - P. 3074-3081. - DOI: 10.1063/1.1662710.

Месяц Г.А., Баренгольц С.А. // УФН. - 2002. - Т. 172. - Вып. 10. - С. 1113-1130.

Андерс А., Окс Е.М., Юшков Г.Ю. и др. // ЖТФ. - 2006. - Т. 76. - Вып. 10. - С. 57-61.

Schneider J.M., Anders A., Yushkov G.Yu. // Appl. Phys. Lett. - 2001. - V. 78. - P. 150-152. - DOI: 10.1063/1.1339847.

Brown I.G. // Rev. Sci. Instrum. - 1994. - V. 65. - P. 3061-3082. - DOI: 10.1063/1.1144756.

Бабичев А.П., Бабушкина Н.А., Братковский А.М. Физические величины: справочник. - М: Энергоатомиздат, 1991.

Yushkov G.Yu., Nikolaev A.G., Frolova V.P., et al. // Phys. Plasm. - 2017. - V. 24. - P. 123501. - DOI: 10.1063/1.5003676.

Anders A., Yushkov G.Y. // J. Appl. Phys. - 2002. - V. 91. - P. 4824-4832. - DOI: 10.1063/1.1459619.

Daalder J.E. // J. Phys. D. Appl. Phys. - 1976. - V. 9. - P. 2379-2395. - DOI: 10.1088/0022-3727/9/16/009.

Гашков М.А., Зубарев Н.М., Месяц Г.А., Уйманов И.В. // Письма в ЖТФ. - 2016. - Т. 42. - Вып. 16. - С. 48-55.

Кесаев И.Г. Катодные процессы ртутной дуги и ее устойчивости. - М.: Госэнергоиздат, 1961.