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Mullite Precursor Part I. Characterization of Mullite Precursor Formed by a Reaction of Monosilicic Acid on Aluminum Hydroxide

Published online by Cambridge University Press:  26 July 2012

Takushi Yokoyama ,
Keisuki Nishu ,
Shunsuke Torii ,
Yoshio Ikeda  and
Tokuko Watanabe
Takushi Yokoyama
Affiliation:
Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-81, Japan
Keisuki Nishu
Affiliation:
Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-81, Japan
Shunsuke Torii
Affiliation:
Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-81, Japan
Yoshio Ikeda
Affiliation:
Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-81, Japan
Tokuko Watanabe
Affiliation:
Laboratory of Marine Biochemistry, Department of Food Science and Technology, Tokyo University of Fisheries, Konan, Minato-ku, Tokyo 108, Japan
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Abstract

By adsorption of monosilicic acid on aluminum hydroxide, an amorphous aluminosilicate (AAS) of Si/Al ratio of 1/3 was formed. When the AAS was heated to 1000 °C, mullite (3Al2O3 · 2SiO2) crystallized directly without the formation of a spinel phase. It was clearly evidenced that correct adjustment of three factors, the Si/Al ratio, the proportion of 4- and 6-coordinated aluminums, and the single environment of a unit (no Si–O–Si bond), is important for the direct mullitization from AAS.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 8 , August 1997 , pp. 2111 - 2116
Copyright
Copyright © Materials Research Society 1997

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References

1.Okda, K., Otsuka, N., and Sōmiya, S., Am. Ceram. Soc. Bull. 70, 1633–1640 (1991).Google Scholar
2.Hoffman, D. W., Roy, R., and Komarneni, S., J. Am. Ceram. Soc. 67, 468–471 (1984).CrossRefGoogle Scholar
3.Okada, K. and Otsuka, N., J. Am. Ceram. Soc. 69, 652–656 (1986).Google Scholar
4.Komarneni, S. and Roy, R., J. Am. Ceram. Soc. 68, C242–243 (1985).Google Scholar
5.Komarneni, S. and Roy, R., J. Am. Ceram. Soc. 69, C42–44 (1986).Google Scholar
6.Yokoyama, T., Nakamura, O., and Tarutani, T., Bull. Chem. Soc. Jpn. 57, 2989–2990 (1984).CrossRefGoogle Scholar
7.Merwin, L. H., Sebald, A., Rager, H., and Schneider, H., Phys. Chem. Minerals 18, 47–52 (1991).CrossRefGoogle Scholar
8.Ikeda, Y., Yokoyama, T., Yamashita, S., Watanabe, T., and Wakita, H., Adv. X-ray Chem. Anal. Jpn. 27, 211–219 (1996).Google Scholar
9.Thomas, I. M., Klinowski, J., Wright, P. A., and Roy, R., Angew. Chem. Int. Ed. Engl. 22, 614–616 (1983).CrossRefGoogle Scholar
10.Taulelle, F. and Theveneau, H., Acad., C.R.Sci. Ser. 2 30, 1033–1035 (1985).Google Scholar
11.Deer, W. A., Howie, R. A., and Zussman, J., Rock-forming Minerals, Vol. 1A, 2nd ed., Orthosilicate (Longman, London and New York, 1982).Google Scholar