摘要：通过制备纳米级氧化铝颗粒的实验,证实了对撞射流粉碎可以制备得到纳米氧化铝颗粒。同时,在氧化铝粉碎前添加了表面分散剂之后,降低了颗粒的表面能,防止了粉碎后颗粒的再团聚,改善了粉碎的效果。

关键词： 对撞射流；纳米颗粒；氧化铝

Abstract: The opposed jet mill was used to prepare nanometer alumina particles. It is concluded that preparing nanometer alumina particles by opposed jet is feasible. Meanwhile, modifying the surface of the alumina particle before grinding can reduce the particle’s surface energy and preventthe fine particles from aggregating. 

Keywords: opposed jet mill; nanometer particles; alumina