Sintering Behaviour and Ionic Conductivity of Yttria-Doped Ceria

Jan Van Herle, Teruhisa Horita, Tatsuya Kawada, Natsuko Sakai, Harumi Yokokawa, Masayuki Dokiya

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Highly sinterable yttria-doped ceria powder (YO1·5)x (CeO2)1-x (x = 0·1-0·33) was fabricated by an optimized coprecipitation route. Compacted bodies could be sintered to impermeability at 1200°C and near full density at 1300°C, among the lowest temperatures reported for doped ceria densification. Ceria diffusion is important above 1400°C. Excellent conduction properties were observed: high ionic conductivity (6·5 S m-1 at 750°C for Ce0·8Y0·2O1·9), low activation energy (0·7 eV) and vanishing grain-boundary resistance.

Original languageEnglish
Pages (from-to)961-973
Number of pages13
JournalJournal of the European Ceramic Society
Volume16
Issue number9
DOIs
Publication statusPublished - 1996 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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