Chapter 16. Grain-Boundary Atomic Structures in Zirconia Ceramics

  1. Rajan Tandon,
  2. Andrew Wereszczak and
  3. Edgar Lara-Curzio
  1. Naoya Shibata1,
  2. Fumiyasu Oba2,
  3. Takahisa Yamamoto3 and
  4. Yuichi Ikuhara4

Published Online: 27 MAR 2008

DOI: 10.1002/9780470291313.ch16

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

How to Cite

Shibata, N., Oba, F., Yamamoto, T. and Ikuhara, Y. (2006) Grain-Boundary Atomic Structures in Zirconia Ceramics, in Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2 (eds R. Tandon, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291313.ch16

Author Information

  1. 1

    Institute of Engineering Innovation The University of Tokyo Yayoi 2–11–16, Bunkyo–ku, Tokyo 113–8656, Japan

  2. 2

    Department of Materials Science and Engineering Kyoto University Yoshida–Honmachi, Sakyo–ku, Kyoto 606–8501, Japan

  3. 3

    Graduate School of Frontier Sciences The University of Tokyo Kashiwa, Chiba 277–8561 Japan

  4. 4

    Institute of Engineering Innovation The University of Tokyo, Yayoi 2–11–16, Bunkyo–ku Tokyo, 113–8656, Japan

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2006

ISBN Information

Print ISBN: 9780470080528

Online ISBN: 9780470291313

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Keywords:

  • high-resolution transmission electron microscopy (HRTEM);
  • segregation;
  • bicrystal;
  • zirconia;
  • fabricated

Summary

In this paper, we review our systematic grain–boundary studies of zirconia ceramics using bicrystals. Yttria–stabilized cubic zirconia (YSZ) bicrystals with [110] symmetric tilt grain boundaries are systematically fabricated by diffusion bonding method. It is revealed that the grain–boundary atomistic structures are strongly dependent on the macroscopic geometries of the boundaries. High–resolution transmission electron microscopy (HRTEM) combined with lattice statics calculations suggest that the grain–boundary structures are characterized by the accumulation of coordination deficient cation sites at their cores, whose densities have a clear correlation with their excess energies and amounts of yttrium solute segregation. The orientation dependence of grain–boundary properties in cubic zirconia can be thus linked and understood via local grain–boundary atomistic structures with the characteristic miscoordinated cation sites. These unique sites will be used to discuss the differences in energies and solute segregation behaviors with fee metal grain boundaries.