High-strain rate superplastic zirconia systems

Y. Sakka*, T. S. Suzuki, K. Morita, B. N. Kim, K. Hiraga

*この研究の対応する著者

研究成果: Conference article査読

抄録

The purpose of this study is to fabricate high-strain rate above 10 -2 s-1 superplastic zirconia systems. Dense, homogeneous and fine-grained zirconia systems of MgO and TiO2 added 3YTZ (3mol%Y2O3 doped tetragonal zirconia), and Al 2O3 and/or Mn3O4 added 3YTZ were obtained by colloidal processing The grain growth was controlled by cation lattice diffusion and the grain growth rate was enhanced by adding TiO 2, Al2O3 and/or Mn3O4. High-strain rate superplasticity was established for the systems of 3(Y 2O3, MgO) · 97(Zr0.95Ti 0.05)O2 and small amounts of Al2O3 and/or Mn3O4 added 3YTZ. Such excellent superplasticity is due to the homogeneous, fine grained microstructure and enhancement of cation lattice diffusion in 3YTZ by addition of TiO2, Al2O 3 and/or Mn3O4.

本文言語English
ページ(範囲)285-288
ページ数4
ジャーナルKey Engineering Materials
264-268
I
出版ステータスPublished - 2004 1月 1
外部発表はい
イベントProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
継続期間: 2003 6月 292003 7月 3

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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