摘要
以熔融热态钢渣为起始原料,在高温状态下加入质量比为1.0∶1.5的石英砂对钢渣进行调质,得到的钢渣玻璃熔体采用熔融法制备微晶玻璃.利用差热分析（DTA）、X射线衍射（XRD）、扫描电子显微镜/能谱仪（SEM/EDS）研究晶化时间对微晶玻璃析晶和性能的影响.结果表明：微晶玻璃的主晶相为透辉石[（Mg6Al2Fe2）Ca（Si1.5Al5）O2],晶体形貌为块状,直径约为10～20μm,分布均匀.随着晶化时间的增加,样品的密度、显微硬度、耐腐蚀性呈逐渐增强的变化趋势.经700℃核化2h,900℃晶化5h后的微晶玻璃综合性能较好.
Simulated molten steel slag was used as raw materials to prepare glass-ceramics using melting-quenching method. Quartz sand was added in to adjust the steel slag component with the mass ratio of 1.0 ： 1.5. Effect of crystallization time on the structure and properties of steel slag based glass- ceramics was studied by differential thermal analysis （DTA）, X-ray diffraction （XRD）, scanning electron microscope （SEM） and energy dispersive X-Ray spectrometer （EDS）. The results show that the main phases in glass-ceramics samples are diopside [- （Mg6 A12 Fe2 ） Ca （Si1. 5 Al5 ）O2 ]. Granular crystals are uniformly distributed in the glass matrix with an average particle size of 10～20μm. With theincrease of crystallization time, the density, corrosion resistance, and micro hardness increase gradually. The sample has good comprehensive properties after nucleation at 700℃ for 2 h, followed by crystallization at 900℃ for 5 h.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第5期71-74,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
内蒙古自治区高等学校科学技术研究资助项目(NJZY13130)
关键词
资源循环利用
热态钢渣
晶化时间
节能减排
微晶玻璃
微观结构
resources utilization
hot steel slag
crystallization time
energy conservation
glass-ceramics
micro structure
