ZHAO Tiangui, DONG Weixia, SHI Yikang, BAO Qifu, ZHOU Jian’er, LIU Xianben, LIU Shujie

(Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China)

Abstract: In this paper, the low temperature porcelain building tiles were prepared by fast firing process using white potassium and Zhuji porcelain sand as main materials, and Jianning feldspar, soda feldspar and lithium china stone as fluxes. Effects of firing temperature on the properties of low temperature building tiles were studied. The crystalline phase and microstructure of the sample were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) analysis. The results showed that when fired at 1150°C and heat soaked for 20 min, mixed with 4% Jianning feldspar, 16% soda feldspar and 11% lithium china stone as fluxes, the properties of the sample were optimal, with the linear shrinkage of 7.21%, the water absorption of 0.11% and the bending strength of 65.8 MPa.

Key words: porcelain building tile; water absorption; firing temperature; bending strength