3D simulation of the microstructure of mesoporous alumina with the two-scale model of platelets identified with TEM images and specific surface area. The total number of implanted platelets in the microstructure is 63 506, including 12 141 aligned platelets and 51 365 randomly-oriented platelets. The parameters of the model are given in Table 5 (last row). a) 300 × 300 × 300 nm³, b) zoom in with field of view about 50 × 50 nm².