Pulsed electric discharge in vacuum diodes with electrodes made of low- and high-temperature superconductors

Sergei I. Shkuratov

doi:10.1117/12.174559

1 May 1994 Pulsed electric discharge in vacuum diodes with electrodes made of low- and high-temperature superconductors

Sergei I. Shkuratov

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174559
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

Abstract

Results are presented of studies of pulsed electric strength and threshold current densities for niobium cathodes in the superconducting and normal states. The process of heating and failure of cathode microemitters under the action of high density field emission current is analyzed. Data of the work function, limiting current densities and tensile strength of YBa₂Cu₃O_7-x cathode tips, effect of emission current on the superconducting properties of YBa₂Cu₃O_7-x thin films and peculiarities of prebreakdown phenomena in vacuum gap with YBa₂Cu₃O_7-x electrodes are given.

Citation Download Citation

Sergei I. Shkuratov "Pulsed electric discharge in vacuum diodes with electrodes made of low- and high-temperature superconductors", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174559

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