ABSTRACT
This chapter presents a study of two different materials made by several different processes: adipic acid produced by atomization, comminution, and crystallization, and iron powders made by atomization, chemical reduction, and electrolytic processes. The objectives of the experimental study include: the morphological properties of fine particles produced by different production processes; and the relationships between morphic descriptors and production processes. Some of the energy consumed in the production and formation of the particles is stored internally and is observed in the morphology of the particles. Smaller particles tend to possess larger morphic terms. This is consistent with the idea that the absolute magnitude of the surface irregularities is controlled by the mechanism of particle formation. The morphic properties of powders are related to their mechanism of formation which is symptomatic of the production process. Particles produced by different mechanisms can be differentiated on the basis of their morphology. Several production processes can be differentiated using the morphological chart.
