• DocumentCode
    2005587
  • Title

    A study of pressed Scandate dispenser cathode

  • Author

    Wang, Jinshu ; Liu, Wei ; Wang, Yiman ; Li, Lili ; Zhou, Meiling

  • Author_Institution
    Sch. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing
  • fYear
    2008
  • fDate
    22-24 April 2008
  • Firstpage
    70
  • Lastpage
    71
  • Abstract
    A new kind of pressed scandate dispenser cathode was fabricated by liquid-liquid doping using a Sol-Gel technique. The cathode exhibits high emission property. i.e., the emission current density reached 47 A/cm2 at 850degCb with lower Richardson work function about 1.1-1.2 eV and Ba:Sc:O concentration ratio at the cathode surface was 1.6:1:2.0.
  • Keywords
    aluminium compounds; barium compounds; calcium compounds; cathodes; current density; doping; scandium compounds; sol-gel processing; tungsten compounds; work function; BaO-CaO-Al2O3; Richardson work function; Sc2O3-WO; emission current density; liquid-liquid doping; pressed scandate dispenser cathode; sol-gel process; temperature 850 degC; Cathodes; Current density; Diodes; Doping; Materials science and technology; Microstructure; Pollution measurement; Powders; Temperature; Tungsten; Emission; Pressed cathode; Scandate;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
  • Conference_Location
    Monterey, CA
  • Print_ISBN
    978-1-4244-1715-5
  • Type

    conf

  • DOI
    10.1109/IVELEC.2008.4556420
  • Filename
    4556420
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2005587