离子交换增强建筑陶瓷釉面砖及其影响因素  

Ion Exchange Enhanced Building Ceramic Glazed Tiles and Its Influence Factors

作　　者：潘国翔 酆辉平 沈宗洋 孙熠 谈翔 徐景临 李月明 PAN Guoxiang;FENG Huiping;SHEN Zongyang;SUN Yi;TAN Xiang;XU Jinglin;LI Yueming(School of Materials Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,China;Jingdezhen Ou Shennuo Ceramics Co.,Ltd.,Jingdezhen 333403,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]景德镇欧神诺陶瓷有限公司,景德镇333403

出　　处：《中国陶瓷》2019年第11期51-57,共7页China Ceramics

基　　金：景德镇陶瓷大学研究生创新基金项目（JYC201838）;大学生创新创业训练计划国家级项目（05004025）

摘　　要：以熔融KNO3作为离子交换源,采用低温离子交换法增强建筑陶瓷釉面砖,分析了其离子交换前后样品的微观形貌、力学性能及内部元素分布变化,并探究了离子交换增强建筑陶瓷釉面砖的影响因素及机理。结果表明:当离子交换温度为400℃,保温时间为5 h时,建筑陶瓷釉面砖表面K+浓度增加明显,交换深度可达150μm;坯体表面由于受到压缩预应力,强度明显提高,其抗折强度由离子交换前的63.8 MPa提升至交换后的91.5 MPa,强度提升达45%。采用离子交换增强建筑陶瓷釉面砖时,合理的离子交换温度和交换时间能有效提高建筑陶瓷的抗折强度。In this paper, the molten KNO3 was used as the ion exchange source to enhance the building ceramic glazed tiles by low temperature ion exchange. The microstructure, mechanical properties and internal element distribution of the samples before and after ion exchange were analyzed, and the influence factors of ion exchange enhanced building ceramic glazed tiles were explored. The results showed that when the ion exchange temperature was 400 ℃ and the holding time was 5 h, the K+ concentration on the surface of the building ceramic glazed tiles increased, and the exchange depth could reach 150 μm. The flexural strength of the body was obviously increased by 45%(from 63.8 MPa to 91.5 MPa) due to the compressive prestress. When ion exchange is used to strengthen building ceramic glazed tiles, reasonable ion exchange temperature and time can effectively improve the flexural strength of building ceramics.

关 键 词：离子交换 建筑陶瓷釉面砖 陶瓷增强 预应力 

分 类 号：TQ174.76[化学工程—陶瓷工业]