Influence of Rare Earth Tailings on the Properties of Ultra-low Temperature Architectural Porcelain Tiles
Architectural porcelain tiles were prepared at ultra-low temperature using black mud,Jinxi sodium sand,and rare earth tailings as the main raw materials.The study investigated the effects of rare earth tailings amounts and firing temperature on the sample properties.By exploring the possibility of using rare earth tailings with high CaO content as a substitute for traditional raw materials like wollastonite under conditions of high utilization,the introduction of multivariate composite fluxes was found to reduce the sintering temperature of the samples.The research results show that the multivariate composite flux system formed by rare earth tailings with high CaO content plays a positive role in reducing the sintering temperature of the samples and improving their sintering performance.The sintering temperature of the sample decreases and its performance improves as the content of rare earth tailings increases,provided that the amount of rare earth tailings is ≤ 50％.When the rare earth tailing sand is 50％,the sintering temperature of the sample reduces to 1080 ℃,and reaches optimal performance:water absorption of 0.15％,sintering shrinkage of 9.84％,bulk density of 2.46 g/cm3,bending strength of 98.55 MPa,which meets the national standard.However,further increasing the amount of rare earth tailings resulted in an increase in sintering temperature and a decrease in performance.
Porcelain tileRare earth tailingsMultivariate composite fluxesUltra-low temperature
万方数据
维普
