Surface flashover performance of epoxy resin microcomposites infulenced by ozone treatment

  • Yin Huang
  • , Daomin Min
  • , Dongri Xie
  • , Shengtao Li
  • , Xuan Wang
  • , Shengjun Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

22 Scopus citations

Abstract

The influence of ozone surface treatment on surface flashover performance of epoxy resin/Al2O3 microcomposites was investigated. Epoxy resin/Al2O3 microcomposite samples with a diameter of 50 mm and a thickness of 1 mm were prepared and treated by ozone for various periods. Surface potential decay, surface conductivity, secondary electron emission coefficient, and surface flashover voltage in SF6 of untreated and ozone treated samples were measured. Both the decay rate of surface potential and surface conductivity increase with an increase in the energy of electron beam. Meanwhile, surface flashover voltage increase. There was no obvious change in secondary electron emission coefficient by the ozone surface treatment. It was found that the decrease in trap energy and increase in trap density can enhance the charge transport process on the surface of samples. The changes can weaken the distortion of electric field at the triple junction of electrode-dielectric-gas and reduce the electron emission, which will improve the surface flashover performance.

Original languageEnglish
Title of host publicationProceedings of 2017 International Symposium on Electrical Insulating Materials, ISEIM 2017
PublisherInstitute of Electrical Engineers of Japan
Pages235-238
Number of pages4
ISBN (Electronic)9784886860996
DOIs
StatePublished - 27 Oct 2017
Event2017 International Symposium on Electrical Insulating Materials, ISEIM 2017 - Toyohashi, Japan
Duration: 11 Sep 201715 Sep 2017

Publication series

NameProceedings of the International Symposium on Electrical Insulating Materials
Volume1

Conference

Conference2017 International Symposium on Electrical Insulating Materials, ISEIM 2017
Country/TerritoryJapan
CityToyohashi
Period11/09/1715/09/17

Keywords

  • Epoxy resin microcomposite
  • Ozone surface treatment
  • Surface conduction
  • Surface flashover

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