Synthetic microstructures illustrations. (a) The grains shape (cubic platelet) and (b) the aggregate shape. Volume representation and 2D slice of a realization of Boolean models presenting the two isotropic cases, homogeneous: (1) V_v = 0.4 and (3) V_v = 0.6, and heterogeneous: (5) V_i = 0.65 and V_o = 0.15, and the anisotropic case: (1’) V_v = 0.4. Volumes and slices generated and rendered using [35].