Glass-ceramic glazes in the CaO-SiO2 system

Abstract

Glass ceramic glazes were developed in the system of CaO-SiO2 system. Compositions containing B2O3 and K2O as fluxing agent were melted at 1450degreesC and fritted. Glazes for porcelain tiles were formulated by using these frits. It was observed that wollastonite crystals were formed under industrial fast firing conditions with a peak temperature over 1200degreesC. Chemical and wear behaviours of the wollastonite containing glazes and the morphology of the crystals were examined.