Abstract
Conventional superplastic ceramics have been established at temperatures over 1400 °C with a slower deformation velocity of about 10 -4 (s -1 ). For the application of superplasticity to the manufacturing process, however, high-strain rate deformation velocity of around 10 -2 /s -1 is necessary. We have reported that alumina addition to 3YTZ (3 mol.%Y 2 O 3 doped ZrO 2 ) is effective in the enhanced ductility. The purpose of this study is to fabricate high-strain rate superplastic 3YTZ by adding manganese and aluminium oxides. Dense and fine-grained 3YTZ systems were obtained by slip casting and low temperature sintering. Manganese and alminium oxides added 3YTZ showed a maximum tensile ductility of about 600% at 1450 °C at a strain rate of 1.2×10 -2 s -1 .
| Original language | English |
|---|---|
| Pages (from-to) | 449-453 |
| Number of pages | 5 |
| Journal | Journal of the European Ceramic Society |
| Volume | 24 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2004 Jan 1 |
| Externally published | Yes |
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Keywords
- Al O
- Colloidal processing
- Grain growth
- Mn O
- Superplasticity
- ZrO
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
Cite this
Fabrication of high-strain rate superplastic yttria-doped zirconia polycrystals by adding manganese and aluminum oxides. / Sakka, Yoshio; Ishii, Tatsunori; Suzuki, Tohru; Morita, Koji; Hiraga, Keijiro.
In: Journal of the European Ceramic Society, Vol. 24, No. 2, 01.01.2004, p. 449-453.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication of high-strain rate superplastic yttria-doped zirconia polycrystals by adding manganese and aluminum oxides
AU - Sakka, Yoshio
AU - Ishii, Tatsunori
AU - Suzuki, Tohru
AU - Morita, Koji
AU - Hiraga, Keijiro
PY - 2004/1/1
Y1 - 2004/1/1
N2 - Conventional superplastic ceramics have been established at temperatures over 1400 °C with a slower deformation velocity of about 10 -4 (s -1 ). For the application of superplasticity to the manufacturing process, however, high-strain rate deformation velocity of around 10 -2 /s -1 is necessary. We have reported that alumina addition to 3YTZ (3 mol.%Y 2 O 3 doped ZrO 2 ) is effective in the enhanced ductility. The purpose of this study is to fabricate high-strain rate superplastic 3YTZ by adding manganese and aluminium oxides. Dense and fine-grained 3YTZ systems were obtained by slip casting and low temperature sintering. Manganese and alminium oxides added 3YTZ showed a maximum tensile ductility of about 600% at 1450 °C at a strain rate of 1.2×10 -2 s -1 .
AB - Conventional superplastic ceramics have been established at temperatures over 1400 °C with a slower deformation velocity of about 10 -4 (s -1 ). For the application of superplasticity to the manufacturing process, however, high-strain rate deformation velocity of around 10 -2 /s -1 is necessary. We have reported that alumina addition to 3YTZ (3 mol.%Y 2 O 3 doped ZrO 2 ) is effective in the enhanced ductility. The purpose of this study is to fabricate high-strain rate superplastic 3YTZ by adding manganese and aluminium oxides. Dense and fine-grained 3YTZ systems were obtained by slip casting and low temperature sintering. Manganese and alminium oxides added 3YTZ showed a maximum tensile ductility of about 600% at 1450 °C at a strain rate of 1.2×10 -2 s -1 .
KW - Al O
KW - Colloidal processing
KW - Grain growth
KW - Mn O
KW - Superplasticity
KW - ZrO
UR - http://www.scopus.com/inward/record.url?scp=0346216943&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0346216943&partnerID=8YFLogxK
U2 - 10.1016/S0955-2219(03)00207-3
DO - 10.1016/S0955-2219(03)00207-3
M3 - Article
AN - SCOPUS:0346216943
VL - 24
SP - 449
EP - 453
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 2
ER -