高能反应球磨制备氧化铝/碳化钛纳米复合粉体  

Preparation of Nanocrystalline Al_2O_3-TiC Composite Powders by High-energy Reaction Ball Milling

作　　者：周丽[1] 傅佃亮 殷凤仕[3] 

机构地区：[1]山东理工大学化学工程学院,山东淄博250049 [2]山东铝业职业学院冶金化工系,山东淄博255051 [3]山东理工大学机械工程学院,山东淄博250049

出　　处：《热加工工艺》2013年第4期129-130,共2页Hot Working Technology

摘　　要：研究了以二氧化钛、铝和石墨为原料,采用高能球磨制备α-Al2O3/TiC纳米复合材料的可行性。对球磨不同时间后的粉末进行X射线衍射分析,并利用扫描电镜观察其微观形貌。结果表明:以微米尺寸的TiO2、Al和C为原料,利用高能反应球磨法可以制备出纳米尺寸的α-Al2O3/TiC复合粉末;球磨250 min后,原料粉完全反应,合成的α-Al2O3/TiC复合粉体晶粒尺寸为15 nm。The feasibility of the preparation of nanocrystalline α-Al2O3/TiC composite powders by high-energy ball milling using TiO2, A1 and graphite as raw materials were investigated. The milled powders were characterized by X-ray diffraction analysis and scanning electron microscope. The results show that α-A12O3/TiC composite powder with the size of 15 nm is obtained by ball milling the mixture of TiO2, Al and graphite powders for 250 min.

关 键 词：高能反应球磨 AL2O3 TiC复合粉体 纳米晶 

分 类 号：TB333[一般工业技术—材料科学与工程]