• DocumentCode
    182207
  • Title

    Initial testing results of scandia-doped tungsten dispenser cathodes

  • Author

    Paff, John ; Rudd, Greg ; Brox, Rob ; Vancil, Bernard

  • Author_Institution
    Spectra-Mat, Inc., Watsonville, CA, USA
  • fYear
    2014
  • fDate
    22-24 April 2014
  • Firstpage
    59
  • Lastpage
    60
  • Abstract
    Spectra-Mat, Inc has developed a kilogram-scalable process for manufacturing scandia-doped tungsten powder for tungsten matrices for high current density cathodes. To validate the powder, diode testing has been performed, with multiple cathodes from a single lot and multiple powder lots. Performance results of that testing as well as initial life test data will be presented. Cathodes are consistently providing 5 A/cm2 at or below 860°C.
  • Keywords
    cathodes; current density; scandium; tungsten; Sc; Spectra-Mat, Inc; W; diode testing; high current density cathodes; kilogram-scalable process; scandia-doped tungsten dispenser cathodes; scandia-doped tungsten powder; tungsten matrices; Cathodes; Current density; Performance evaluation; Powders; Roads; Testing; Tungsten; Cathode; high current density; scandia; scandia doped tungsten;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference, IEEE International
  • Conference_Location
    Monterey, CA
  • Type

    conf

  • DOI
    10.1109/IVEC.2014.6857489
  • Filename
    6857489
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=182207