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Superplasticity of mullite-zirconia composite |
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| Authors: | Takayuki Nagano Hidezumi Kato Fumihiro Wakai |
| Affiliation: | (1) Research and Development Centre, Suzuki Motor Corporation, Takatsuka, 432-91 Hamamatsu, Japan;(2) Ceramic Science Department, Government Industrial Research Institute, Nagoya, 1-1 Hirate-cho, Kita-ku, 462 Nagoya, Japan |
| Abstract: | Tension tests of mullite-zirconia composite were conducted at elevated temperature. A superplastic elongation of 122% could be achieved at an initial strain rate of 2.86×10–5s–1 at 1550°C. Strain hardening was observed at strain rates from 1.42×10–4 to 2.86×10s–5s–1 at 1550°C. The addition of zirconia grains to the mullite matrix increased the creep rate of the composite. |
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