腐食合成法を用いたムライト粉末の作製

抄録

3Al₂O₃·2SiO₂ (mullite) was obtained by the corrosion reaction of aluminum in ethanol. The aluminum corrosion product and tetraethoxysilane were mixed in the solution. Ammonia water was added into the mixed solution above. When the solution was dried and fired, white powders were obtained. This powder was identified as mullite by X-ray analysis. Distribution analysis and chemical analysis reveal that the average particle size was about 5 μm, and that its impurities were up to 0.1 %.