工艺条件对钢铁废渣玻璃陶瓷显微结构的影响  

Effects of Processing Conditions on the Microstructures of Glass-ceramics Prepared from Iron and Steel Slag

作　　者：肖汉宁[1] 邓春明[1] 彭文琴[1] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2001年第1期32-36,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金!资助项目 ( 59772 0 0 7);湖南省中青年基金资助项目

摘　　要：通过对材料组成和结构的设计 ,获得了高炉渣和钢渣用量为55%～ 60 % ,抗弯强度大于 30 0 MPa,显微硬度达 1 2 GPa,耐磨性比GCr1 5钢高 2 6倍的玻璃陶瓷 .探讨了微晶化工艺条件对钢铁废渣玻璃陶瓷的显微结构和性能的影响 ,在一定工艺条件下所制备的玻璃陶瓷的晶相含量可达 90 %以上 ,晶粒大小仅 0 .1～ 0 .3μm,多为等轴柱状晶 ,以辉石类为主晶相 .By means of materials design in composition and microstructure,a glass-ceramics was prepared with iron and steel slag up to 55～60 mass %.The material showed a bending strength more than 300 MPa,a Vickers hardness up to 12 GPa and a wear resistance as 26 times as that of GCr15 steel.The effects of processing conditions on the microstructures and properties of the slag glass-ceramics were investigated.The crystal phase in the glass-ceramics can reach 90 % and is in the form of augite and diopside with pillar-like particles in a size of 0.1～0.3 μm when the process conditions are suitable.The slag glass-ceramics is good in properties and low in cost,so it is a promising material for wear resistance applications.

关 键 词：玻璃陶瓷 钢铁废渣 微晶化工艺 显微结构 工艺条件 微晶玻璃 

分 类 号：TQ171.733[化学工程—玻璃工业] TQ174[化学工程—硅酸盐工业]