• DocumentCode
    3179425
  • Title

    Emission property of RE2O3 doped Mo cathode materials

  • Author

    Wang, Jinshu ; Liu, Wei ; Gao, Fei ; Wang, Yiman ; Zhou, Meiling

  • Author_Institution
    Beijing Univ. of Technol., Beijing
  • fYear
    2007
  • fDate
    15-17 May 2007
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Single La2O3, Ce2O3 doped Mo with low content of RE2O3 has good thermionic emission property. The zero-field emission current densities at 1450 degC of 6.87A/cm and 5.03 A/cm2 could be obtained for La2O3(4wt%)-Mo and Ce203(4wt%)-Mo, respectively.La2O3-Mo, Ce2O3-Mo cermet cathode containing high content of RE2O3 shows a certain secondary emission property. A layer of RE2O3 could be formed at surface of the cathode and plays an important role in the emission.
  • Keywords
    cerium compounds; lanthanum compounds; molybdenum compounds; oxygen compounds; thermionic cathodes; thermionic emission; Ce2O3-Mo; La2O3-Mo; cathode materials; temperature 1450 C; thermionic cathode; thermionic emission property; zero-field emission current densities; Atmosphere; Cathodes; Ceramics; Chemicals; Current density; Electron emission; Magnetic materials; Materials science and technology; Powders; Thermionic emission;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
  • Conference_Location
    Kitakyushu
  • Print_ISBN
    1-4244-0633-1
  • Type

    conf

  • DOI
    10.1109/IVELEC.2007.4283307
  • Filename
    4283307
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3179425