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.
出处
《机械工程材料》
CAS
CSCD
北大核心
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 )
