[en] In these studies, cordierite was mechanically synthesized after a sol-gel process. The effect of milling time of cordierite was investigated. Aluminium nitrate nonahydrate, magnesium nitrate hexahydrate and tetraethyl orthosilicate (TEOS) were used as starting materials. Gels obtained were mechanically activated in planetary ball mill by at 300 rpm grinding speed and grinding time (15 min, 30 min, 45 min and 60 min). Powders produced were characterized by X-ray Diffraction (XRD) and Field Emission Scanning Microscope (FESEM) and Energy Dispersive X-ray (EDX). EDX analysis proved that α-cordierite was formed at lower temperature (1200 degree Celsius) as compliment to without grinding, whereby it is formed at 1300 degree Celsius. FESEM analysis shows the size of the cordierite were in submicron scale. EDX analysis proved that magnesium, aluminium, silicon and oxygen are elements existed in cordierite. (author)