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Current Topics in Colloid & Interface Science   Volumes    Volume 7 
Fractally porous media
A. Ch. Mitropoulos
Pages: 79 - 93
Number of pages: 15
Current Topics in Colloid & Interface Science
Volume 7 

Copyright © 2006 Research Trends. All rights reserved

In this paper, some experimental methods for determining the fractal dimension of a porous medium are reviewed. Fractality (when present) dominates the structural parameters of the medium that then influences the physical processes involved. First, a few examples demonstrating the differences between self-similar, self-affine, and rough surfaces are presented (FRACTAL SYSTEMS). Then, the determination of the fractal dimension from the specific surface area, the pore size distribution, or the grain size distribution of an adsorbent is considered (ADSORPTION METHODS). Next, the types of fractal dimensions obtained from certain regions of a small-angle x-ray or neutron scattering curve are revised (SCATTERING METHODS). Finally, the effect of the fractality to the diffusion process is discussed (DIFFUSION METHODS).
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