钙长石基涂层增强建筑陶瓷的制备和性能研究  

Preparation of Anorthite Based Coating and its Properties of Reinforcing Building Ceramics

作　　者：李恺 刘一军 闫振华 黄玲艳 吴建青[2] 吴天野 李月明 包亦望 LI Kai;LIU Yijun;YAN Zhenhua;HUANG Lingyan;WU Jianqing;WU Tianye;LI Yueming;BAO Yiwang(Postdoctoral Research Center,Monalisa Group Co.,Ltd.,Foshan 528211,Guangdong,China;School of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,Guangdong,China;School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,Jiangxi,China)

机构地区：[1]蒙娜丽莎集团股份有限公司博士后科研工作站,广东佛山528211 [2]华南理工大学材料科学与工程学院,广东广州510641 [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：《中国陶瓷工业》2024年第3期7-12,共6页China Ceramic Industry

基　　金：蒙娜丽莎集团股份有限公司博士后科研工作站资助项目;江西省教育厅科学技术研究项目(GJJ2201012)资助。

摘　　要：建筑陶瓷强度的提升是实现瓷砖薄型化、轻量化生产的关键因素之一。以方解石、烧滑石、高岭土、石英为主要原料,通过改变涂层原料中锂辉石的添加量,调控涂层的物相组成和热膨胀系数,制备了钙长石为主晶相的预应力涂层增强的建筑陶瓷。同时,研究了涂层厚度、球磨时间、保温时间等工艺参数对建筑瓷砖强化效果的影响。结果表明,当涂层中锂辉石添加量为20 wt.%、涂层厚度为86μm,以及在涂层材料球磨时间3 h、烧成温度1190℃、保温时间30 min的条件下,获得了具有较低热膨胀系数且界面结合良好的预应力涂层,此时涂层与基体的膨胀系数差值为3.17×10^(–6)℃^(–1),陶瓷复合样品的抗折强度达到最大值为99.8 MPa,相较于无涂层的样品(66.3 MPa)强度提高了50.5%。The increase in the strength of building ceramics is one of the key factors to achieve thinner and lighter production of tiles.In this work,using calcite,calcined talc,kaolin and quartz as the main raw materials,the coatings reinforced building tiles with calcium feldspar as the main crystalline phase and prepared.The phase composition and the coefficient of thermal expansion of the coatings can be controlled by changing the amount of spodumene in the coating.At the same time,the effect of the processing parameters,such as coating thickness,milling time,holding time,on the strengthening of building tiles was studied.The results show that the prestressed coating with low thermal expansion coefficient and good interfacial bonding between coating and substrate can be obtained.when the spodumene content in the coating is 20 wt.%,the coating thickness is 86μm,the ball-milling time of the coating material is 3 h,and the firing temperature is 1190℃for 30 min,the difference between the expansion coefficient of the coating and the substrate is 3.17×10^(–6)℃^(–1),and the strength of the ceramic composite sample reaches the maximum value of 99.8 MPa,which is 50.5%higher than that of the uncoated sample(66.3 MPa).

关 键 词：预应力涂层 建筑陶瓷 钙长石 热膨胀系数 抗折强度 

分 类 号：TQ174.76[化学工程—陶瓷工业]