• DocumentCode
    3489613
  • Title

    Barium Activity and Emissive Properties of Composite Oxides

  • Author

    Zorkin, A.Ya. ; Zorkina, O.A. ; Lemyakin, A.A.

  • Author_Institution
    Saratov State Tech. Univ.
  • fYear
    2006
  • fDate
    20-21 Sept. 2006
  • Firstpage
    394
  • Lastpage
    400
  • Abstract
    The influence of temperature and composition of BaO CaO SrO connection-oriented oxide-cathodes and BaO CaO Al2O3 connection-oriented aluminate cathodes on barium activity at free vacuum evaporation of oxides is examined. The increase of concentration of more stable oxides in comparison with baryta (CaO, SrO)) decreases the activity of oxygen and increase of barium activity. On the contrary, the additions of less stable oxides (2O3) increase oxygen activity and reduce barium activity. For receiving of the equal emission of various oxides the barium activity in them should be identical (about 10-12). The increased barium activity in triple oxide is the evidence of the tendency to education of nucleus pure barium
  • Keywords
    cathodes; evaporation; vacuum deposition; BaO-CaO-Al2O3; aluminate cathodes; barium activity; composite oxides emissive properties; oxide-cathodes; oxides vacuum evaporation; Aluminum oxide; Barium; Cathodes; Temperature; Vacuum technology;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Actual Problems of Electron Devices Engineering, International Conference on
  • Conference_Location
    Saratov
  • Print_ISBN
    1-4244-0246-8
  • Electronic_ISBN
    1-4244-0247-6
  • Type

    conf

  • DOI
    10.1109/APEDE.2006.307444
  • Filename
    4099658
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3489613