The collapse behavior of nano-particle SiO 2(R972)is investigated in a 35 mm diameter fluidized bed. This powder can be easily and uniformly fluidized via self-aggregation.

• 在直径为 35mm的小型流化床中考察了纳米级SiO2 颗粒 (商品牌号R972 )的床层塌落行为 .