含Cs^+熔盐添加剂对离子交换玻璃力学性能的影响  

Effect of Additives Containing Cs^+ on Mechanical Property of Ion-exchange Strengthening Glass

作　　者：尤增宇 姚忠华[1] 张玲洁[1,2] 杨辉[1,2] 曹元 樊先平[1,2] 

机构地区：[1]浙江大学材料科学与工程学院,杭州310027 [2]浙江加州国际纳米技术研究院,杭州310058 [3]浙江美盾防护技术有限公司,嘉兴314032

出　　处：《硅酸盐通报》2016年第7期2007-2013,共7页Bulletin of the Chinese Ceramic Society

基　　金：国家国际科技合作专项项目(2014DFB50100)

摘　　要：本文采用熔盐法对普通钠钙硅玻璃进行化学钢化,研究了离子交换时间、温度和熔盐添加剂对化学钢化玻璃抗弯强度的影响,优化出一种含铯盐的熔盐配方,并探讨了Cs^+的强化机制。结果表明:在410℃进行离子交换10h后,玻璃抗弯强度为原片的4.17倍,K^+扩散深度约25μm。EDS、XPS分析结果表明,Cs^+占据了Na^+位置,与K^+→Na^+交换原理基本相同;少量Cs^+的加入有助于提高玻璃的抗弯强度,但过量的Cs^+会对K^+向深处交换产生一定的阻碍。Soda-lime glass was strengthened in molten salts through an ion-exchange process. The effect of time, temperature and additives on bending strength of chemical strengthening glass were studied and an optimized molten mixed salts formulation containing cesium was obtained. Strengthen mechanism of Cs ＋ was discussed. The results show that the bending strength of ion-exchange glass prepared at 410 ℃ for 10 h has a significant increase by 4.17 times with the diffusion depth of K＋ reaching 25 μm. Energy Dispersive Spectrometer （EDS） and X-ray photoelectron spectroscopy （XPS） show that as the same principle of exchange between K ＋ and Na ＋ , Cs ＋ take the position of Na ＋ , and that a small amount of Cs ＋ in molten salts can enhance the bending strength of chemical strengthened glass while excess amount will suppress the diffusion of K ＋.

关 键 词：玻璃 离子交换 抗弯强度 CS 添加剂 

分 类 号：TQ173[化学工程—搪瓷工业]