不同孔径MgO泡沫过滤器对纯Mg过滤效果研究  

Effect of MgO Ceramic Foam Filter with Different Apertures on Microstructures of Crude Magnesium

作　　者：张文政[1] 刘正[2] 毛萍莉[2] 

机构地区：[1]沈阳化工大学材料科学与工程学院 [2]沈阳工业大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2013年第6期506-508,共3页Special Casting & Nonferrous Alloys

基　　金：国家科技支撑计划资助项目(2008BAE63B02;2008BAE63B01)

摘　　要：用扫描电镜、X射线衍射仪、金相显微镜等测试手段,研究了采用不同孔径MgO泡沫陶瓷过滤粗Mg前后组织形貌的变化。结果表明,随着泡沫陶瓷过滤孔径的减小,残余的夹杂物更少、更小,而且密度更接近于Mg的理论密度。但经不同孔径泡沫陶瓷过滤的Mg晶粒都比较粗大,而且所得的纯Mg是由α-Mg相组成,没有共晶相。Influences of MgO ceramic foam filter with different apertures on structures and properties of magnesium were observed by SEM （scanning electron microscope）, XRD （X-ray diffraction） and metallurgical microscope. The results show that residual inclusion is decreased greatly and the density of crude magnesium filtered can gradually be tended to theory density with decreasing in filter apertures, while grain sizes of the magnesium filtered are increased, meanwhile, absence of eutectic phase can be observed.

关 键 词：泡沫陶瓷过滤器 粗Mg 过滤器 

分 类 号：TF822[冶金工程—有色金属冶金]