晶化温度对钢渣赤泥玻璃陶瓷显微结构的影响  

Effect of Crystallization Temperature on Microstructure of Glass Ceramics Based on Steel Slag and Red Mud

作　　者：张全鹏[1] 刘立强[1] 井敏[1] 李航[1] 王明国[1] 牛文贺[1] 王正[1] 邢瑞平[1] 

机构地区：[1]山东建筑大学材料科学与工程学院,济南250101

出　　处：《中国陶瓷》2013年第10期57-60,共4页China Ceramics

摘　　要：本文以钢铁废渣和赤泥为主要原料,利用熔融法制备了玻璃陶瓷。分析了不同晶化温度对所制备的玻璃陶瓷的主晶相、显微结构及性能的影响。结果表明:随着晶化温度的升高,玻璃陶瓷的主晶相由钙铁透辉石转变为钙铝黄长石,晶粒由球形晶转变为块状晶。晶化温度的升高更有利于钙铝黄长石相的析出。在晶化温度为870℃时,所制得玻璃陶瓷的抗折强度达到161.57 MPa;并且耐蚀性随晶化温度的升高而增强。In this paper, glass ceramic was prepared by melting method, with slags and red mud as principal raw materials. Analysis of the impact of different crystallization temperatures on the main crystalline phase, microstructure and properties of the glass ceramic were performed. The results showed that： with the increase of crystallization temperature, the main crystalline phase of glass ceramics transformed from calcium iron diopside into gehlenite, and the grain changed from spherical crystal to bulk crystal~ higher crystallization temperature was more conducive to the precipitation of gehlenite phase; when the crystallization temperature was 870℃, flexural strength of the glass ceramic reached 161.57 MPa, and its corrosion resistance enhanced with the increases of crystallization temperature.

关 键 词：玻璃陶瓷 晶化温度 显微结构 抗折强度 耐蚀性 

分 类 号：TQ171.733[化学工程—玻璃工业]