Double layer glaze applications for the vitrifies glazes and surface properties

Abstract

Sanitaryware glazes are of the raw type and have zirconium silicate as an opacifier. Glaze compounds affect glaze properties such as mechanical strength, surface proper-ties etc. In this study, glazes were prepared in order to observe the effect of zircon presence in glaze and further alumina content. Melting behavior of glazes was determined by using hot stage microscope. Samples were prepared as once-fire and twice-fire with two layers. Surface smoothness, gloss, color and scratchiness of samples fired at approximately 1210degreesC were investigated.