High-strain rate superplastic zirconia systems

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

Research output: Contribution to journalConference article

Abstract

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.

Original languageEnglish
Pages (from-to)285-288
Number of pages4
JournalKey Engineering Materials
Volume264-268
Issue numberI
Publication statusPublished - 2004 Jan 1
Externally publishedYes
EventProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
Duration: 2003 Jun 292003 Jul 3

Keywords

  • Colloidal processing
  • Fine-grained ceramics
  • High-strain rate
  • Superplasticity
  • Zirconia

ASJC Scopus subject areas

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

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  • Cite this

    Sakka, Y., Suzuki, T. S., Morita, K., Kim, B. N., & Hiraga, K. (2004). High-strain rate superplastic zirconia systems. Key Engineering Materials, 264-268(I), 285-288.