Fractal description of porosity and specific surface area for porous media of graphite
Qi Liu · Meitan xuebao · 2010
The fractal model of graphite porous media was established to accurately describe the pore structure.The relationships among porosity,specific surface area and equal portion(m),number of subtracted cubes(n),iteration times(i) were deduced from Menger model.The simulation was influenced by the parameters of m,n and i and the effects of parameters were discussed.Mercury injection test was carried out to validate the fractal equations.The experimental results show that the fractal dimensionality of graphite range from 2.68 to 2.92 and close to 2.73(the fractal dimension of Menger sponge model).The experimental data have agreement well with theoretical values.Consequently,fractal theory is an available method to investigate the porosity and the specific surface area for graphite porous media.