Fig. 6. FE-SEM images of a cross section of a porous anodic film formed at
electrolyte temperatures of 55 °C a) at the pore base b) at a depth of 10 ± 1 μm
and c) near the surface.
Fig. 7. Evolution of the pore diameter, determined at the pore base, at a depth of
10 ± 1 μm and near the oxide surface, in function of the electrolyte temperature.