DocumentCode
3236600
Title
Increased hold-off voltage in vacuum gaps with coated electrodes
Author
Allen, R.J. ; Schoenbach, K.H.
Author_Institution
Old Dominion Univ., Norfolk, VA, USA
Volume
2
fYear
1996
fDate
20-23 Oct 1996
Firstpage
650
Abstract
It has been shown that thin film coatings applied to metal electrodes in vacuum increase the breakdown voltage. With a 2 μm SiO coating on a stainless steel cathode doubling of the DC breakdown voltage compared to that of a bare electrode was achieved. The electric field at breakdown with a coated electrode reached an average value of 650 kV/cm. A figure of merit for coating materials was developed which predicts further increase in the hold-off voltage by using coating materials with high dielectric constant and low electron affinity
Keywords
electrodes; electron affinity; electron field emission; permittivity; spark gaps; vacuum breakdown; 2 micron; DC breakdown voltage; SiO; average value; coated electrodes; coating materials; dielectric constant; electric field; electron affinity; hold-off voltage; vacuum gaps; Cathodes; Coatings; Dielectric materials; Electric breakdown; Electrodes; High-K gate dielectrics; Steel; Transistors; Vacuum breakdown; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location
Millbrae, CA
Print_ISBN
0-7803-3580-5
Type
conf
DOI
10.1109/CEIDP.1996.564554
Filename
564554
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