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Preparation of acicular particles of α-alumina

Published online by Cambridge University Press:  03 March 2011

Takeo Iga  and
Yoshio Murase
Takeo Iga
Affiliation:
Ceramic Science Department, National Industrial Research Institute of Nagoya, Nagoya 462 Japan
Yoshio Murase
Affiliation:
Ceramic Science Department, National Industrial Research Institute of Nagoya, Nagoya 462 Japan
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Abstract

Aluminum ammonium sulfate (AA) solution (0.1 mol/l) and ammonium hydrogen carbonate (AHC) solution (1.2 mol/l) were allowed to react at room temperature. The precipitates formed were kept with the mother liquor in a closed vessel and aged at 100 °C. Acicular-shaped crystalline particles of Al(NH4)CO3(OH)2, (AACH), were obtained after the elongated aging period. Acicular α-alumina particles were obtained through the thermal decomposition at 1300 °C out of the AACH particles which were previously treated with a small amount of tetraethoxysilane (about 1.6 wt. % of SiO2).

Type
Rapid Communication
Information
Journal of Materials Research , Volume 10 , Issue 7 , July 1995 , pp. 1579 - 1581
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1Kato, S., Iga, T., Hatano, S., and Izawa, Y., Yogyo-Kyokai-Shi (J. Ceram. Soc. Jpn.) 84, 215 (1976).Google Scholar
2Iga, T. and Izawa, Y., Transactions of the Materials Research Society of Japan 11 (The Materials Research Society of Japan, Japan, 1992), p. 33.Google Scholar
3Murase, Y. and Iga, T., Yogyo-Kyokai-Shi (J. Ceram. Soc. Jpn.) 95, 556 (1987).Google Scholar
4Iga, T. and Kato, S., Yogyo-Kyokai-Shi (J. Ceram. Soc. Jpn.) 86, 509 (1978).CrossRefGoogle Scholar
5Japan Kokai Tokkyo Koho, 48–83100 (1973); Ger. Offen., 2,202,853 (1973).Google Scholar