Powders are used in many industries as raw material, intermediate or final products. But working with powders can be difficult, as their behavior is influenced by a large variety of different parameters. Powder behavior can change during manufacturing due to changes in the powder or in ambient conditions. Therefore, proper control is crucial to ensure smooth powder processing.
The descriptive umbrella term powder rheology combines different methods to analyze powders regarding their properties and characteristics, like powder flow, compressibility, permeability, and many more. This article explains how powders and granular media are classified and how they can be characterized. The term powder will be used synonymously for powder, bulk solids, and granular media.