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

被引：0
|
作者：
Takushi Yokoyama
Keisuki Nishu
Shunsuke Torii
Yoshio Ikeda
Tokuko Watanabe
机构：
[1] Kyushu University,Department of Chemistry, Faculty of Science
[2] Tokyo University of Fisheries,Laboratory of Marine Biochemistry, Department of Food Science and Technology
[3] Konan,undefined
来源：
Journal of Materials Research | 1997年 / 12卷
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学科分类号：
摘要：
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 SiO4-4 unit (no Si–O–Si bond), is important for the direct mullitization from AAS.
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页码：2111 / 2116
页数：5
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