The Effect of Al2O3 Nanoparticle Addition on the Coating Behavior of Al-based Suspensions in Producing Nanocomposite Hollow Spheres

The present study carried out fluidized bed coating of Al‐based powder‐binder suspension onto a polymersubstrate. The effect of the nanoparticle additive and process time was investigated for coating process efficiency andcoating characteristics. It was found that efficiency decreased as the processing time increased, but the coatingthickness increased as the processing time and amount of binder increased. For a sample with 1.5 wt. % of binder, asthe nanoparticle content changes from 2.5 to 7.5 wt.%, the coating thickness decreases from 351 to 310 μm. This issueabout efficiency is 61.11% (for 2.5 wt. %) and 52.78% (for 7.5 wt. %).

کلیدواژه ها:

Fluidizied bed coating ، Al nanocomposite ، Efficiency ، Nanoparticle ، Hollow Sphere ، Binder