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Micro TiO2 and Al2O3·3H2O fillers were loaded into the epoxy resin by mixing different weight ratio. The flashover studies were conducted using 20 ns (rise time)/1.5 μm (half-height width time) pulse under 5 × 10-3Pa vacuum. The surface flashover properties of micro TiO2 and Al2O3·3H2O/epoxy composites were presented. In addition, their dielectric spectrum and thermally stimulated depolarization current...
The vacuum surface flashover characteristic of solid material under steep pulse severely restricts the structure and performance of pulsed-power devices; and with excellent performance in insulation and mechanical strength, epoxy resin has been widely employed in pulse equipment; moreover, the accumulation of surface charge not only enhances the electric field but also affects the movement of the...
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