• DocumentCode
    54735
  • Title

    Striations in High-Pressure Hydrogen Microplasma

  • Author

    Pollard, William ; Suzuki, Patricia ; Staack, David

  • Author_Institution
    Dept. of Mech. Eng., Texas A&M Univ., College Station, TX, USA
  • Volume
    42
  • Issue
    10
  • fYear
    2014
  • fDate
    Oct. 2014
  • Firstpage
    2650
  • Lastpage
    2651
  • Abstract
    Standing wave striations at frequencies below 400 kHz are observed in DC H2 microplasma discharges at pressures up to 7.8 atm. Striations are observable in low-current (1-5 mA) discharges, with a passively stabilized external circuit. Striation spacing ranges from 17 to 34 μm, with higher pressure and lower current producing smaller spacing. These striations indicate the continued applicability of Knudsen (Kn) numberbased scaling laws over several orders of magnitude in pressure.
  • Keywords
    Knudsen flow; glow discharges; hydrogen; plasma diagnostics; plasma waves; DC H2 microplasma discharges; H2; Knudsen number-based scaling laws; current 1 mA to 5 mA; distance 17 mum to 34 mum; high-pressure hydrogen microplasma; low-current discharges; standing wave; Cathodes; Discharges (electric); Glow discharges; Hydrogen; Plasmas; Resistors; Glow discharge; high pressure; hydrogen; microplasma; microscopy; striations; striations.;
  • fLanguage
    English
  • Journal_Title
    Plasma Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0093-3813
  • Type

    jour

  • DOI
    10.1109/TPS.2014.2324536
  • Filename
    6835216
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=54735