Mechanism of Negative Corona Pulses in CO2 - SF6 Mixtures

Abstract

Current waveforms of first negative corona pulses have been measured in CO2-SF6 mixtures over a pressure range extending from 6.65 kPa to 50 kPa and various overvoltages. Effects of changing cathode secondary electron emission were studied using a copper cathode coated by CuI and graphite. The results indicate a positive-streamer discharge mechanism and important role of field emission processes at pressure above 30 kPa.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 2003
Accession Number
ADP014948

Entities

People

  • A. Zahoranova
  • D. Kovacik
  • M. Cernak
  • M. Simor

Organizations

  • Comenius University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Electron Emission
  • Electrons
  • Emission
  • Field Conditions
  • Field Emission
  • Gas Discharges
  • Gases
  • Graphitic Materials
  • Ionization
  • Ionized Gases
  • Leading Edges
  • Lepidoptera
  • Materials
  • Photoexcitation
  • Stainless Steel
  • Technical Information Centers

Fields of Study

  • Physics

Readers

  • Plasma Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene