透辉石涂层增强铁尾矿建筑陶瓷的制备及性能研究  

Preparation and Properties of Diopside Coating Reinforced Building Tiles Produced from Iron Tailings

作　　者：母军 易晨浩 韩波 潘雪岗 孙熠 李月明 MU Jun;YI Chenhao;HAN Bo;PAN Xuegang;SUN Yi;LI Yueming(Enping Xinjincheng Ceramic Co.,Ltd.,Jiangmen 529447,Guangdong,China;Jiangxi Guanyi Abrasives Co.,Ltd.,Yichun 330700,Jiangxi,China;School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,Jiangxi,China)

机构地区：[1]恩平市新锦成陶瓷有限公司,广东江门529447 [2]江西冠亿研磨股份有限公司,江西宜春330700 [3]景德镇陶瓷大学材料科学与工程学院,江西景德镇333403

出　　处：《陶瓷学报》2024年第6期1214-1221,共8页Journal of Ceramics

基　　金：江西省自然科学基金(20202BAB204005)。

摘　　要：以铁尾矿建筑陶瓷砖坯为基体,采用预应力涂层技术提升建筑瓷砖强度。研究了透辉石涂层的配方组成与涂层厚度、保温时间、球磨时间等工艺参数对涂层复合试样抗折强度的影响。研究发现,透辉石涂层最佳配料组成为:白云石32 wt.%、石英56 wt.%、氧化铝12 wt.%。相较于无涂层的基体(103.23 MPa),复合试样抗折强度提升了31.95 MPa,提升幅度为30.95%。随着涂层厚度的增加,复合试样的强度出现先增加后降低的趋势。当涂层厚度为196.45μm时,复合试样的强度最高(143.54 MPa),相比基体的抗折强度提升了40.31 MPa,提升幅度为39.05%。当涂层原料球磨时间为5h时,在1200℃保温0.5h条件下,透辉石涂层的增强效果最佳,制备的具有双面涂层的复合体铁尾矿建筑陶瓷试样抗折强度达到148.51 MPa,较基体提升了45.28 MPa,提升幅度为43.86%。Prestressed coating technology is used to improve the strength of building ceramic tiles produced from iron tailings.The effects of the composition of diopside coating and technological parameters,such as coating thickness and holding time and milling time,on flexural strength of the coated composite samples were studied.It is found that the optimal composition of diopside coating consists of 32 wt.%dolomite,56 wt.%quartz and 12 wt.%alumina.As compared with that of the uncoated substrate(103.23 MPa),the flexural strength of the composite sample is increased by 31.95 MPa(30.95%).With increasing coating thickness,flexural strength of the composite sample increases first and then decreases.When the coating thickness is 196.45μm,the strength of the composite sample is the highest(143.54 MPa),while the flexural strength of the composite sample is increased by 40.31 MPa.The increase in the flexural strength is 39.05%,as compared with that of the substrate.When the milling time of the coating material is 5 h,the diopside coating calcined at 1200℃for 0.5 h has the highest strengthening effect.Flexural strength of the double-sided coating composite building tiles from iron tailings reached 148.51 MPa,which is 45.28 MPa higher than that of the substrate,with an increase rate of 43.86%.

关 键 词：建筑陶瓷 预应力涂层 透辉石 抗折强度 

分 类 号：TQ174.76[化学工程—陶瓷工业]