High-strain rate superplastic zirconia systems

Y. Sakka, Tohru 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 TiO 2 added 3YTZ (3mol%Y 2 O 3 doped tetragonal zirconia), and Al 2 O 3 and/or Mn 3 O 4 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 , Al 2 O 3 and/or Mn 3 O 4 . High-strain rate superplasticity was established for the systems of 3(Y 2 O 3 , MgO) · 97(Zr 0.95 Ti 0.05 )O 2 and small amounts of Al 2 O 3 and/or Mn 3 O 4 added 3YTZ. Such excellent superplasticity is due to the homogeneous, fine grained microstructure and enhancement of cation lattice diffusion in 3YTZ by addition of TiO 2 , Al 2 O 3 and/or Mn 3 O 4 .

Original languageEnglish
Pages (from-to)285-288
Number of pages4
JournalKey Engineering Materials
Volume264-268
Issue numberI
Publication statusPublished - 2004 Nov 29
Externally publishedYes
EventProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
Duration: 2003 Jun 292003 Jul 3

Fingerprint

Zirconia
Strain rate
Superplasticity
Grain growth
Cations
Positive ions
Microstructure
Processing
zirconium oxide

Keywords

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

ASJC Scopus subject areas

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

Cite this

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

High-strain rate superplastic zirconia systems. / Sakka, Y.; Suzuki, Tohru; Morita, K.; Kim, B. N.; Hiraga, K.

In: Key Engineering Materials, Vol. 264-268, No. I, 29.11.2004, p. 285-288.

Research output: Contribution to journalConference article

Sakka, Y, Suzuki, T, Morita, K, Kim, BN & Hiraga, K 2004, 'High-strain rate superplastic zirconia systems', Key Engineering Materials, vol. 264-268, no. I, pp. 285-288.
Sakka Y, Suzuki T, Morita K, Kim BN, Hiraga K. High-strain rate superplastic zirconia systems. Key Engineering Materials. 2004 Nov 29;264-268(I):285-288.
Sakka, Y. ; Suzuki, Tohru ; Morita, K. ; Kim, B. N. ; Hiraga, K. / High-strain rate superplastic zirconia systems. In: Key Engineering Materials. 2004 ; Vol. 264-268, No. I. pp. 285-288.
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AU - Suzuki, Tohru

AU - Morita, K.

AU - Kim, B. N.

AU - Hiraga, K.

PY - 2004/11/29

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N2 - 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 TiO 2 added 3YTZ (3mol%Y 2 O 3 doped tetragonal zirconia), and Al 2 O 3 and/or Mn 3 O 4 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 , Al 2 O 3 and/or Mn 3 O 4 . High-strain rate superplasticity was established for the systems of 3(Y 2 O 3 , MgO) · 97(Zr 0.95 Ti 0.05 )O 2 and small amounts of Al 2 O 3 and/or Mn 3 O 4 added 3YTZ. Such excellent superplasticity is due to the homogeneous, fine grained microstructure and enhancement of cation lattice diffusion in 3YTZ by addition of TiO 2 , Al 2 O 3 and/or Mn 3 O 4 .

AB - 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 TiO 2 added 3YTZ (3mol%Y 2 O 3 doped tetragonal zirconia), and Al 2 O 3 and/or Mn 3 O 4 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 , Al 2 O 3 and/or Mn 3 O 4 . High-strain rate superplasticity was established for the systems of 3(Y 2 O 3 , MgO) · 97(Zr 0.95 Ti 0.05 )O 2 and small amounts of Al 2 O 3 and/or Mn 3 O 4 added 3YTZ. Such excellent superplasticity is due to the homogeneous, fine grained microstructure and enhancement of cation lattice diffusion in 3YTZ by addition of TiO 2 , Al 2 O 3 and/or Mn 3 O 4 .

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