Master sintering curve for Gd-doped CeO2 solid electrolytes

D. Z. De Florio, V. Esposito, Enrico Traversa, R. Muccillo, F. C. Fonseca

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

The sintering behavior of gadolinia-doped ceria powders was studied by the master sintering curve (MSC). Dilatometric analyses of powders produced by a soft chemical method were performed to provide the experimental data set for the construction of the MSC. The assumed model provided good fittings of the MSC and the activation energy for the sintering of Ce1-xGd xO3-δ, with x = 0, 0.05, 0.1, and 0.2 were found to be in the 218-325 KJ/mol range, depending on the dopant content. The results supported that both the nanometric size of the particles and the difference in ionic radii between Gd3+ and Ce4+ affects the sintering of Gd-doped CeO2.

Original languageEnglish (US)
Pages (from-to)143-147
Number of pages5
JournalJournal of Thermal Analysis and Calorimetry
Volume97
Issue number1
DOIs
StatePublished - Jul 1 2009

Keywords

  • Ceria
  • IT-SOFC
  • Master sintering curve
  • Solid electrolyte
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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