Title :
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
fDate :
6/1/1990 12:00:00 AM
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;
Journal_Title :
Electrical Insulation, IEEE Transactions on
