钙铝硅涂层增强建筑陶瓷的制备及性能研究  

Preparation and Properties of Calc-aluminosilicate Coating Reinforced Building Ceramic Tiles

作　　者：吴天野 李月明 孙熠 李恺 包亦望 万德田 WU Tianye;LI Yueming;SUN Yi;LI Kai;BAO Yiwang;WAN Detian(School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China;Key Laboratory of China Light Industry Functional Ceramics Materials,Jingdezhen 333403,China;China Building Materials Academy,Beijing 100024,China)

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,景德镇333403 [2]中国轻工业功能陶瓷材料重点实验室,景德镇333403 [3]中国建筑材料科学研究总院有限公司,北京100024

出　　处：《中国陶瓷》2022年第11期55-62,共8页China Ceramics

基　　金：国家自然科学基金(52032011,52002160);江西省自然科学基金(20202BAB204005);江西省科技厅国内科技合作项目(2021BDH81010);江西省教育厅科技项目(GJJ190690,GJJ190698)。

摘　　要：以硅灰石、石英、Al_(2)O_(3)为原料制备具有较低膨胀系数的钙铝硅质涂层。通过调整涂层的组成来对基体产生适当的压应力,从而提高陶瓷的抗折强度。研究了涂层热膨胀系数、厚度及保温时间对抗折强度的影响,分析了涂层材料的物相组成。结果表明:当涂层中Al_(2)O_(3)含量为8.1wt%、涂层厚度约为101μm,球磨时间3h,烧成温度为1170℃,保温为30min时,可获得抗折强度最优的钙铝硅质涂层复合陶瓷。此时基体和涂层的膨胀系数分别为8.73×10^(-6)℃^(-1)和6.06×10^(-6)℃^(-1),制得的涂层复合陶瓷抗折强度(103±3MPa)比无涂层样品(66±2MPa)提高了56%。The calc-aluminosilicate coatings with low coefficient of thermal expansion(CTE)were prepared using wollastonite,quartz and Al_(2)O_(3)as raw materials.By adjusting the composition of the coating to produce appropriate compressive stress on the matrix,the flexural strength of the ceramic is improved.The effects of CTEs,soaking time and thicknesses of the coating on the bending strength were studied and phase compositions of coating materials were analyzed.The results show that the optimal bending strength of calcaluminosilicate coated composite ceramics is obtained when the coating contains 8.1 wt%Al_(2)O_(3),the thickness of coating is about 101μm,the time of ball-milling is 3h and the soaking temperature is 1170℃for 30 min.In this condition,the CTEs of substrate and coating are 8.73×10^(-6)℃^(-1)and 6.06×10^(-6)℃^(-1),respectively.The flexural strength of the prepared composite ceramics(103±3 MPa)is 56%higher than that of the uncoated Sample(66±2 MPa).

关 键 词：钙铝硅质 涂层 建筑陶瓷 陶瓷增强 抗折强度 

分 类 号：TQ174.453[化学工程—陶瓷工业]