Fabrication and sintering of fine yttria-doped ceria powder

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

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

Yttria-doped ceria powder was prepared from oxalate precursors. The oxalate coprecipitation bath parameters were closely monitored and found to influence the sintering behavior of the subsequently obtained oxide powders strongly. The use of concentrated (Ce,Y) metal nitrate solutions and dilute neutralized oxalic acid for coprecipitation were identified as the most-important parameters. Following calcination at 700°C, compacts of such powders were sintered to high density (98%) at 1400°C (4 h). Ball milling of the powder further reduced the sintering temperature. Dry milling, for tape-casting applications of the powder in particular, was more effective than wet milling. Tape-cast membranes were fired at 1400°C (2 h), with resulting densities of 98%.

Original languageEnglish
Pages (from-to)933-940
Number of pages8
JournalJournal of the American Ceramic Society
Volume80
Issue number4
Publication statusPublished - 1997 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Van Herle, J., Horita, T., Kawada, T., Sakai, N., Yokokawa, H., & Dokiya, M. (1997). Fabrication and sintering of fine yttria-doped ceria powder. Journal of the American Ceramic Society, 80(4), 933-940.