Novel Synthesis of Mullite Powder with High Surface Area |
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| Authors: | Masayuki Imose Yoshihiko Takano Masaru Yoshinaka Ken Hirota Osamu Yamaguchi |
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| Affiliation: | Department of Molecular Science and Technology, Faculty of Engineering, Doshisha University, Kyoto 610-03, Japan;Tanaka Galvanizing Company, Ltd., Osaka 555, Japan |
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| Abstract: | Boehmite (AlO(OH)) solid-solution gel, which yields stoichiometric mullite (3Al2O32SiO2) at high temperatures, has been prepared by the hydrazine method. The formation process leading to 3Al2O32SiO2 is discussed. The as-prepared powder and powders heated below 1200°C consist of very fine particles showing needlelike morphology, whereas the particles of mullite powder show thin prismatic morphology. The mullite powder after heating at 1300°C has a high surface area (87 m2/g). |
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