The Effect of Nepheline Syenite Addition on Sanitaryware Body

Authors : Nazmi Kunduraci, Tuna Aydin

Pages : 16-19

Doi:10.29137/umagd.346107

View : 10 | Download : 8

Publication Date : 2015-06-15

Article Type : Research

Abstract :The effect of the addition of Nepheline syenite on the sintering, and properties of a sanitaryware porcelain body was studied. Two ceramic bodies were compared: a commercial sanitaryware body and one, where 40% of the mass of Na feldspar was substituted nepheline syenite. The sintering was evaluated by the linear shrinkage, the water absorption. Samples, sintered at 1220 and 1190 ºC, were used for the evaluation of the the bending strength. The addition of Nepheline syenite had a positive effect on the formation of the liquid phase during the sintering. The sintering and the mechanical properties were improved by heat treatment in the 1190ºC range
Keywords : Nepheline cyanide, sintering, sanitaryware, ceramic