化学沉淀法制备纳米Al_2O_3粉体中的反团聚研究  

Study on Antiagglimeration of Nanometer Al2 O3Powder Prepared by Chemical Precipitation

作　　者：陈彩凤[1] 陈志刚[1] 郝臣 陈雪梅[1] 张勇 

机构地区：[1]江苏理工大学材料工程系,江苏镇江212013

出　　处：《机械工程材料》2000年第5期26-28,共3页Materials For Mechanical Engineering

基　　金：江苏省教委自然科学基金资助项目! (99KJD430 0 0 4 )

摘　　要：以工业用 NH4Al( SO4) 2 · 1 2 H2 O和 NH4HCO3为原料 ,采用化学沉淀法制备纳米Al2 O3粉体。研究了 p H值、乙醇、表面活性剂等因素对 Al2 O3粒子尺寸的影响 ,并探讨了几种反团聚的机理及效果。Nanometer Al2 O3powder was prepared by chemical precipitation technique using NH4 Al(SO4 ) 2 · 1 2 H2 O and NH4 HCO3as the starting materials.The influences of p H value,surface active agents and ethanol on the size of Al2 O3powder were investigated.The mechanism of several antiagglomeration measurements and their effects on podwer size were discussed.

关 键 词：化学沉淀法 纳米Al2O3粉体 反团聚 制备 

分 类 号：TF123.72[冶金工程—粉末冶金] TB383[冶金工程—冶金物理化学]