Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2000-10-07
Physics
Condensed Matter
Soft Condensed Matter
11 pages, 3 figures
Scientific paper
10.1103/PhysRevE.64.041601
We report a numerical study of van der Waals adsoprtion and capillary condensation effects on self-similar fractal surfaces. An assembly of uncoupled spherical pores with a power-law distributin of radii is used to model fractal surfaces with adjustable dimensions. We find that the commonly used fractal Frankel-Halsey-Hill equation systematically fails to give the correct dimension due to crossover effects, consistent with the findings of recent experiments. The effects of pore coupling and curvature dependent surface tension were also studied.
Ma Jian
Qi Haiming
Wong Po-zen
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