溶胶-凝胶法制备Li_2O-ZnO-B_2O_3-SiO_2系低温玻璃料  

Preparation of Li_2O-ZnO-B_2O_3-SiO_2 System Glass by Sol-Gel Method at Low Temperature

作　　者：高元[1] 侯永改[1] 李文凤[1] 李广锋[1] 丁志静[1] 黄庆飞[1] 

机构地区：[1]河南工业大学材料科学与工程学院,郑州450001

出　　处：《硅酸盐通报》2016年第12期4232-4236,4251,共6页Bulletin of the Chinese Ceramic Society

基　　金：河南省科技厅重点科技攻关(112102210240)

摘　　要：以有机锌盐、有机锂盐、正硅酸乙酯、硼酸为原料,乙醇为溶剂,采用溶胶-凝胶法成功制备出Li_2O-ZnO-B_2O_3-SiO_2系微晶玻璃料,通过TG-DTA、FTIR、XRD等材料测试方法对Li_2O-ZnO-B_2O_3-SiO_2系玻璃料进行分析。结果表明:最佳pH值是4.5,反应温度是40℃,最佳配比Li_2O∶ZnO∶B2O_3∶SiO_2=15∶15∶10∶60;干凝胶开始析出晶体的温度为480℃;当热处理温度为660℃时,能够生成稳定的SiO_2晶体,样品晶粒粒径为55.1nm。For the preparation of Li2O-ZnO-B2O3-SiO2 microerystalline glass material, with Zn （ CH3 COO） 2, Si （ OC2 H5 ） a, Li （ CH3 COO ） , H3 BO3 as raw material, the Li2O-ZnO-B2O3-SIO2 system glass was prepared by sol-gel method. The Li2O-ZnO-B2O3-SiO2 system glass was characterized by TG- DTA, FTIR, XRD and other materials testing methods. Results show： For preparing LZBS glass material by sol-gel method, the optimal process conditions is pH 4.5 and temperature 40 ℃. The best ratio of Li2O ：ZnO： B2O3： SiO2 is 15： 15： 10： 60. The crystallization temperature of the dry gel is 480 ℃. When heat treatment is 660 ℃, the stable SiO2 crystal can be formed, and the grain size of the sample is 55.1 nm.

关 键 词：溶胶-凝胶法 Li2O-Zn O-B2O3-Si O2系玻璃 晶粒尺寸 

分 类 号：TQ174.1[化学工程—陶瓷工业]