ABSTRACT
Magnetic Resonance Imaging (MRI) technique was used to study in which range of concentration and speed a Turbula® blender can be used with dry granular matter to be a good blender. It is found that this blender is very efficient if the rotation speed is high enough, if the particles to blend are small and if they are in low concentration. It also appears that quantity of large particles segregates quite fast at the surface of the sample. This shows that percolation is a very strong segregation process. Moreover, the segregation process seems to be entirely control by the inertial effects and the ratio of size diameters of course. No concentration effects have been detected as the segregation process would be a one-particle problem.
