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Advanced Hydrothermal ZrO2 Powder

Published online by Cambridge University Press:  25 February 2011

Shigeyuki Sōmiya ,
Kazumitsu Hishinuka ,
Zenjiro Nakai ,
Notoshi Abe  and
Tokuji Akiba
Shigeyuki Sōmiya
Affiliation:
The Nishi Tokyo University, Uenohara, Yamanashi, 409-OL, Japan Chichibu Cement Co., Ltd., 5310 Mikajiri, Kumagaya, Saitama, 360, Japan
Kazumitsu Hishinuka
Affiliation:
The Nishi Tokyo University, Uenohara, Yamanashi, 409-OL, Japan Chichibu Cement Co., Ltd., 5310 Mikajiri, Kumagaya, Saitama, 360, Japan
Zenjiro Nakai
Affiliation:
The Nishi Tokyo University, Uenohara, Yamanashi, 409-OL, Japan Chichibu Cement Co., Ltd., 5310 Mikajiri, Kumagaya, Saitama, 360, Japan
Notoshi Abe
Affiliation:
The Nishi Tokyo University, Uenohara, Yamanashi, 409-OL, Japan Chichibu Cement Co., Ltd., 5310 Mikajiri, Kumagaya, Saitama, 360, Japan
Tokuji Akiba
Affiliation:
The Nishi Tokyo University, Uenohara, Yamanashi, 409-OL, Japan Chichibu Cement Co., Ltd., 5310 Mikajiri, Kumagaya, Saitama, 360, Japan
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Abstract

Well-crystallized Y2O3 -ZrO2 powder of 12nm crystallite size was synthesized by RoAogenious precipitation under hydrothermal condition at 180°C for 1 hour. This powder consisted of tetragonal zirconia. After calcination and ball milling, the crystiilite size was 22 nm and the tetragonal phase was reduced to 55% by ball milling. The average grain size was 0.5 µm and specific: surface area was 20 m /g. Highly dense TZP(> 99%) with a homogeneous microstructure was obtained by sintering this powder at 1400°C for 2 hours.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 249: Symposium Q – Synthesis and Processing of Ceramics: Scientific Issues , 1991 , 95
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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3) Sōmiya, S., Yoshimura, M., Suwa, Y., Akiba, T., Nakai, Z., Hishinuma, K. and Kumaki, T.,Science of Sintering, 507–518,Plenum Press(1990)Google Scholar