Assessing the homogeneity of an alumina/zircon powder mixture at various scales by scanning electron microscopy

International audiencePowder mixing is a fundamentally important unit operation in industries handling powders. The purpose ofsuch an operation is to reach a given homogeneity, which has to be defined at a certain scale, theobservation scale, in order to be relevant. This scale is defined by the final product’s requirements.Moreover, the homogeneity of a mixture can hardly be known exactly, and its assessment is always ascientific issue due to theoretical and practical limitations