Fracto-emission-induced electrical breakdown in vacuum

Author

Donaldson, E.E. ; Dickinson, J.T. ; Wu, Naiqiang

Author_Institution

Dept. of Phys., Washington State Univ., Pullman, WA, USA

Volume

25

Issue

3

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

549

Lastpage

556

Abstract

Electrical breakdown was induced in a vacuum directly across a crack. These breakdown events are explained in terms of fracto-emission (the emission of charged particles, neutral species and photons due to fracture) serving as a trigger which induced breakdown. The effect of creating a crack in a dielectric suspended between two electrodes, the dependence of the observed discharges on the magnitude of the applied voltage and on the nature of the fracto-emission, and the temporal relationship of the onset of breakdown to the fracture event were examined. The materials studied were polymethylmethacrylate and a Kevlar-fiber reinforced composite

Keywords

electric breakdown of solids; fibre reinforced composites; fracture; polymers; Kevlar-fiber reinforced composite; crack; dielectric; discharges; fracto-emission-induced electrical breakdown; fracture event; polymethylmethacrylate; temporal relationship; vacuum; Breakdown voltage; Composite materials; Dielectrics; Electric breakdown; Electrodes; Electron emission; Fault location; Iron; Physics; Vacuum breakdown;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.55730

Filename

55730