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Porosity and microstructure control of porous ceramics by partial hot pressing

  • Jian-Feng Yang (a1), Guo-Jun Zhang (a2) and Tatsuki Ohji (a2)


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.



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


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