Effect of SiO₂ and Al₂O₃ on the synthesis of Fe₂O₃ red pigment

抄録

Fe₂O₃ red pigments, especially hematite particles have been widely utilized in many technologies, such as pigments, catalysts, coatings, flocculants, cosmetics, electronic materials ad abrasives. There are many commercially available Fe₂O₃ powders for use as red pigment for Japanese porcelain enamel. However, the tone of red color of Fe₂O₃ pigments was strongly influenced by synthesized temperature. It was important that the color-stable pigments, which were not affected by morphology and dispersal behavior, were synthesized for use as thermally stable red pigments. The present work was to study the possibility of synthesizing red inorganic pigments by composite of Fe₂O₃, Al₂O₃ and SiO₂.