CHARACTERIZATION AND SYNTHESIS OF SAMARIUM-DOPED CERIA SOLID SOLUTIONS


Arabaci A.

Materials Science and Technology Conference (MS and T), Pennsylvania, United States Of America, 7 - 12 October 2012, vol.240, pp.71-77 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 240
  • City: Pennsylvania
  • Country: United States Of America
  • Page Numbers: pp.71-77
  • Istanbul University Affiliated: Yes

Abstract

Doped ceria is considered as the most promising high-conducting electrolyte, alternative to the commercially used yttria-stabilized zirconia. The ceria with fluorite type structure is very tolerant to dissolution of lower valence metal ions. In this study, fully dense CeO2 ceramics doped with 10 mol % Sm (Sm0.1Ce0.9O1.95, SDC) were successfully synthesized by a simple Pechini method. X-ray diffraction analysis showed fine grained powders with single phase and cubic fluorite structure. A range of techniques including thermal gravimetric analysis (TGA/DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were carried out to characterize the SDC powders.