Mathematical models for the anodization conditions and structural features of porous anodic Al sub 2 O sub 3 films on aluminum

A developed strict kinetic model for the growth of porous anodic Al sub 2 O sub 3 films was employed to the experimental results obtained at different bath temperatures and current densities of 99.5 Al anodization. Treatment of the values of parameters involved in the kinetic equation showed that the pore/cell surface density depends only on current density, the pore base diameter depends only on bath temperature, and the equations ln n=p ln J+p" and ln D sub b =g ln T+g" accurately apply. By using these equations, mathematical models for other structural features were also formulated describing their dependence on the anozidation conditions.