Abstract
The electrochemical method named as the corrosion reaction synthesis has been tried to prepare the cordierite powder. As metallic magnesium, aluminum chloride and tetraethyl orthosilicate were mixed in ethanol, the corrosion product containing hydroxide of aluminum, magnesium and silicon was obtained. The product was hydrolyzed and fired. The X-ray diffraction, the particle size measurement and the scanning electron microscope revealed that the cordierite of which average size was about 10 μm was obtained at more than 1473 K. The magnesium dissolution, the catalytic effect of aluminum chloride, and the mixing effect of three elements above were considered from the electrochemical point of view.
