Paper Title:
Enhanced Densification and Grain-Size Refinement in Cation-Doped Tetragonal Zirconia
  Abstract

In tetragonal zirconia, possibility is investigated of densification with finer grain sizes under the combination of doping and sintering in air. The materials used are CIP'ed compacts of 3-mol%-yttria-stabilized tetragonal zirconia (3Y-TZP) doped with a small amount of cations. For a given sintering temperature and initial density of the compacts, while the doped cations enhances densification in the latest stage of sintering, the effect is different in grain growth during densification: a doped cation tended to enhance grain growth, whereas the other cations tended to suppress grain growth. As a result, the doping of the latter cations brings about a grain size finer than that of the undoped 3Y-TZP for a given relative density.

  Info
Periodical
Edited by
Pietro VINCENZINI and Jean-François BAUMARD
Pages
227-231
DOI
10.4028/www.scientific.net/AST.62.227
Citation
K. Hiraga, H. Yoshida, K. Morita, B. N. Kim, "Enhanced Densification and Grain-Size Refinement in Cation-Doped Tetragonal Zirconia", Advances in Science and Technology, Vol. 62, pp. 227-231, 2010
Online since
October 2010
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$32.00
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