1. Powder flowability

Among the behavioral properties of powders, their flowability is by far the one of greatest interest to the industrial sector.

In many industrial processes, divided solids are handled, transported or stored. The flowability of powders therefore determines the performance and smooth running of processes, and plays a role in the quality of the end product. For example, a powder with good flowability will flow unassisted. Conversely, a cohesive powder has poor flowability, and a mechanical device must be provided to facilitate its movement (agitation, vibration). The dynamic behavior of powders as they flow depends on numerous characteristics. It is difficult to express it in a single,...