高能反应球磨法制备Fe_3Al/α-Al_2O_3纳米复合粉体  

Preparation of Nano-crystalline Fe_3Al/α-Al_2O_3 Composite Powders by High-energy Ball Milling

作　　者：周丽[1] 徐振[2] 薛冰[2] 殷凤仕[2] 

机构地区：[1]山东理工大学化学工程学院,山东淄博250049 [2]山东理工大学机械工程学院,山东淄博250049

出　　处：《热加工工艺》2014年第6期126-127,共2页Hot Working Technology

摘　　要：以Fe、Al和Fe2O3粉体为原料,采用高能球磨法制备了Fe3Al/α-Al2O3纳米复合粉体,采用X射线衍射仪研究了球磨时间对粉体物相的变化规律。结果表明:以Fe、Al和Fe2O3粉体为原始材料,高能球磨250min可制备Fe3Al/α-Al2O3纳米复合粉体;在高能反应球磨过程中,Fe2O3、Al和Fe之间的反应分为3步,分别是:2Al+Fe2O3=Al2O3+2Fe、6Al+Fe=Al6Fe和Al6Fe+12Fe=Fe3Al。Nano-crystalline Fe3Al/α-Al2O3 composite powder was prepared by high-energy ball milling using Fe, Al and Fe2O3 powders as raw materials. The powders with different milling time were characterized by X-ray diffraction analysis. The results show that nano-crystalline Fe3Al/α-Al2O3 composite powder can be obtained by reaction ball milling the mixture of Fe, A1 and Fe203 powders for 250 min. The composite powders are formed in three steps during high-energy ball milling process as follows：2Al＋Fe2O3=Al2O3＋2Fe, 6AI＋Fe=A16Fe and A16Fe＋12Fe=Fe3A1.

关 键 词：高能反应球磨 纳米复合粉体 FEAL 

分 类 号：TB333[一般工业技术—材料科学与工程]