Early-stage sintering mechanisms of Fe-doped CeO2

Zhang Tianshu, Peter Hing, Haitao Huang, J. Kilner

Research output: Journal article publicationJournal articleAcademic researchpeer-review

88 Citations (Scopus)

Abstract

Cerium oxide is a very useful base material used as catalyst supports, ion conductors and gas sensors. It is also well known that ceria-based materials are difficult to densify below 1500°C. However, a small amount of Fe doping obviously promotes the densification rate and reduces the sintering temperatures. In this study, the early stage sintering mechanisms of undoped and Fe-doped CeO2were investigated, based on two sintering models. We confirm that pure CeO2exhibits volume-diffusion controlled sintering, while a viscous flow mechanism dominates the early stage sintering of Fe-doped CeO2.
Original languageEnglish
Pages (from-to)997-1003
Number of pages7
JournalJournal of Materials Science
Volume37
Issue number5
DOIs
Publication statusPublished - 1 Mar 2002
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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