The effect of mineralizing admixtures on synthesis of ceramic pigments based on the natural wollastonite

The mineralizing effect of additives of the natural fluorine-containing mineral topaz and boric acid on the synthesis of ceramic pigments with diopside and anorthite structures based on natural wollastonite has been investigated. The brightest palette was obtained at 1100 ° C. A clear advantage of topaz over the traditional mineralizer, boric acid, has been established. The obtained ceramic pigments have good chromophore properties, are stable at high firing temperatures, and can be widely used in ceramic production. Tab. 5, ill. 2, bibliography: 3 titles.