Imaging in powder technology from visualization to measurement: Application to shape quantification

Image analysis tools and statistical procedures have been developed to quan tify particle shape. Three copper sulfate crystallization processes have be en carried out and the effects of process operating parameters upon crystal morphology have been studied as well as the relationships between morpholo gy and powder end use properties. Both aspects give the capability to maste r end-use properties by the process parameters. It is also shown that size distribution without morphology is deficient to globally characterize a pow der and to describe its behaviour.