Title :
Prebreakdown effects and electric strength of high-temperature oxide superconductors
Author :
Mesyats, V.G. ; Shkuratov, S.I.
Author_Institution :
Inst. of Electrophys., Acad. of Sci., Sverdlovsk, USSR
fDate :
4/1/1990 12:00:00 AM
Abstract :
The emissive properties and electric strength of the high-temperature YBaCuO oxide superconductor were investigated in both the superconducting and the normal state. The results show that the emissive properties of YBaCuO cathodes are similar to those of metals. The vacuum pulsed breakdown with YBaCuO electrodes has some features similar to those observed for metallic electrodes. The formation of a dielectric covering on high-temperature-superconductor cathodes makes feasible their application in HV electrophysical devices
Keywords :
barium compounds; cathodes; electric strength; electron field emission; high-temperature superconductors; spark gaps; superconducting devices; yttrium compounds; YBaCuO cathodes; YBaCuO electrodes; application in HV electrophysical devices; dielectric covering; electric strength; emissive properties; high temperature superconductors; high-temperature oxide superconductors; normal state; prebreakdown effects; superconducting state; vacuum pulsed breakdown; Cathodes; Cryogenics; Delay effects; Helium; High temperature superconductors; Plasma measurements; Plasma temperature; Superconducting transmission lines; Vacuum breakdown; Yttrium barium copper oxide;
Journal_Title :
Electrical Insulation, IEEE Transactions on
