• DocumentCode
    2326364
  • Title

    Huge thermoelectromotive force generated by porous ceramics of Y 2O3

  • Author

    Koumoto, K. ; Seo, W.S. ; Ozawa, S.

  • Author_Institution
    Dept. of Appl. Chem., Nagoya Univ., Japan
  • fYear
    1997
  • fDate
    26-29 Aug 1997
  • Firstpage
    467
  • Lastpage
    470
  • Abstract
    Porous Y2O3 ceramic was found to show huge thermopower values up to -50 mV/K at 900-1000 K in vacuum, but not in air. Such huge thermopowers may be generated by the electron gas emitted from the internal surfaces of the pores and are associated with some unknown effects. The non-dimensional thermoelectric figure of merit, ZT, of this porous ceramic was as large as ~0.95 at ~950 K, and hence it can be used as a new thermoelectric material
  • Keywords
    ceramics; electron gas; porous materials; thermoelectric power; yttrium compounds; 900 to 1000 K; Y2O3; electron gas; huge thermoelectromotive force; pore internal surface; porous ceramics; thermoelectric figure of merit; thermopower; Ceramics; Chemistry; Electron emission; Force measurement; Insulation; Silicon germanium; Temperature dependence; Thermal conductivity; Thermal force; Thermoelectricity;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Thermoelectrics, 1997. Proceedings ICT '97. XVI International Conference on
  • Conference_Location
    Dresden
  • ISSN
    1094-2734
  • Print_ISBN
    0-7803-4057-4
  • Type

    conf

  • DOI
    10.1109/ICT.1997.667187
  • Filename
    667187
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2326364