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Porosity and microstructure control of porous ceramics by partial hot pressing

Published online by Cambridge University Press:  31 January 2011

Jian-Feng Yang ,
Guo-Jun Zhang  and
Tatsuki Ohji
Jian-Feng Yang
Affiliation:
Japan Science and Technology Corporation (JST), Nagoya 463–8687, Japan
Guo-Jun Zhang
Affiliation:
Synergy Materials Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya 463–8687, Japan
Tatsuki Ohji
Affiliation:
Synergy Materials Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya 463–8687, Japan
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Abstract

Precise control of porosity and microstructure of porous ceramics is essential. This paper describes a method for the preparation of porous ceramics with porosity from 0.0 to 0.4. The ceramics were prepared via hot pressing a powder mixture to a definite dimension, and the porosity was easily adjusted by the powder amount. As examples, porous Si3N4 or SiC ceramics were produced by powder mixtures that contained Si3N4 or SiC and a sintering additive of oxide. It was demonstrated that the present method is advantageous for producing ceramics with controllable porosity and microstructure.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 7 , July 2001 , pp. 1916 - 1918
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Shigegaki, Y., Brito, M.E., Hirao, K., Toriyama, M., and Kanzaki, S., J. Am. Ceram. Soc. 80, 495 (1997).Google Scholar
2.Inagaki, Y., Ohji, T., Kanzaki, S., and Shigegaki, Y., J. Am. Ceram. Soc. 83, 1807 (2000).CrossRefGoogle Scholar
3.Kondo, N., Suzuki, Y., and Ohji, T., J. Mater. Res. 16, 32 (2001).CrossRefGoogle Scholar
4.Corbin, S.F. and Apté, P.S., J. Am. Ceram. Soc. 82, 1693 (1999).Google Scholar
5.Hardy, D. and Green, D.J., J. Eur. Ceram. Soc. 15, 769 (1995).Google Scholar
6.Lam, D.C.C., Lange, F.F., and Evans, A.G., J. Am. Ceram. Soc. 77, 2113 (1994).Google Scholar
7.Ishizaki, K., Komarneni, S., and Nanko, M., Porous Materials (Klu-wer Academic Publishers, Dordrecht, The Netherlands, 1998), pp. 46, 51.CrossRefGoogle Scholar
8.Suganuma, K., Sasaki, G., Fujita, T., Okumura, M., and Niihara, K., J. Mater. Sci. 28, 1175 (1993).Google Scholar
9.Kingery, W.D., J. Appl. Phys. 30, 301 (1959).Google Scholar
10.Yang, J.F., Deng, Z.Y., and Ohji, T., J. Am. Ceram. Soc. (in review).Google Scholar