第二步离子交换时间对钠铝硅系统力学敏感玻璃的影响  

Effect of Mechanical Sensitivity Glass of Sodium Aluminum Silicon System by the Second Step of Ion Exchange Time

作　　者：宋培煜 庞欢欣 马强[1] 李玉辉[1] 何峰[1,2] 谢峻林[1,2] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2016年第7期1985-1989,共5页Bulletin of the Chinese Ceramic Society

基　　金："十二五"国家科技支撑计划(2012BAA08B04)资助

摘　　要：采用低温型两步离子交换法对钠铝硅系统玻璃进行钢化处理制备出工程应力玻璃(ESP玻璃)。第一步钢化采用长时间高温处理,第二步钢化采用短时间低温处理。研究了钢化玻璃中第二步钢化处理的交换时间对弯曲强度,Weibull模数,K^+、Na^+离子扩散等的影响。结果表明:随着第二步交换时间延长,弯曲强度和Weibull模数先增加后下降,在30 min时达到最大值。K^+离子富集峰位置逐渐向玻璃内部移动,Na^+离子富集峰位置逐渐增大,宽度也逐渐增大。ESP玻璃较一步钢化玻璃有更高的弯曲强度,钾离子富集峰位置更深。Two-step ion exchange at low temperature method was used to make aluminum sodium silicate glass to engineered stress profile glass （ESP glass）. One step of tempering treatment is high temperature for long time, the second step of tempering treatment is low temperature for short time. The influences of bending strength, Weibull modulus, the diffusion of K ＋ , Na ＋and anti crack ability by the second step of process time was studied. The experimental results show that along with the extension of the second step switching time, the bending strength and Weibull modulus increased first and then decreased and when the second step ion exchange time is 30 rain, they all reached the maximum value. K＋ concentration peak position moves inside with the second step ion exchange time increases, Na ＋ concentration peak position and width are increasing. ESP glass has higher bending strength than the single step ion exchange g/ass, and K ＋concentration peak position is deeper than it.

关 键 词：化学钢化 低温两步离子交换法 韦伯模数 抗裂纹性能 

分 类 号：TQ172[化学工程—水泥工业]