热处理工艺对高炉矿渣微晶玻璃性能的影响  

Effect of Heat Treatment on Mechanical Properties of Glass-Ceramic Prepared with Blast Furnace Slag

作　　者：汪庆卫[1,2] 张月文[1,2] 罗理达[1,2] 宁伟[1,2] 

机构地区：[1]东华大学纤维改性国家重点实验室,上海201620 [2]东华大学先进玻璃制造技术教育部工程研究中心,上海201620

出　　处：《玻璃与搪瓷》2017年第3期1-6,共6页Glass & Enamel

基　　金：科技部科研院所技术开发专项资助项目(2014G11009);中央高校基本科研业务费专项资金项目(2232014D3-06)

摘　　要：以某高炉矿渣为主要原料,采用熔融法制备了CaO-Al_2O_3-SiO_2系矿渣微晶玻璃。研究了热处理工艺对矿渣微晶玻璃力学性能的影响,得出热处理工艺影响因素的先后顺序为:核化温度-核化时间-晶化时间-晶化温度,确定最佳热处理工艺为:770℃核化3 h,930℃晶化2 h,在此热工艺条件下制备的微晶玻璃抗弯强度最大,为153.67 MPa。利用X射线衍射(XRD)、扫描电镜(SEM)、能谱(EDS)测试方法分析了矿渣微晶玻璃的显微结构和晶体微观结构。Using blast furnace slag as main raw material the glass-ceramic based on CaO-Al2O3-SiO2 system was prepared by melting method. The effect of heat treatment on mechanical properties of slag based glass-ceramic was studied. The results showed that the influence of the factors in heat treatment process on bending strength was sequenced as follows nucleation temperature-nucleation time-crystal-lization time-crystallization temperature. The optimum heat treatment regime was nucleation at 770℃ for 3h and crystallization at 930℃ for 2 h. Thus the bending strength of the glass-ceramic reached the maximum value up to 153.67 MPa. The crystal - structure and microstructure of glass - ceramic were studied by X-ray diffraction （XRD） , scanning electron microscope （SEM） and energy disperse spec-troscopy （EDS）.

关 键 词：高炉矿渣微晶玫璃 热处理工艺 抗弯强度 正交实验 

分 类 号：TQ171.733[化学工程—玻璃工业]