Theoretical Aspects of the Estimation of Pore and Mass Fractal Dimensions of Porous Media on the Macroscopic Scale using NMR Imaging
✍ Scribed by Sean P. Rigby
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 258 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0960-0779
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✦ Synopsis
NMR imaging studies\ employing spin density and spinÐlattice relaxation time "T 0 # contrasted images\ have been used in the past to probe the spatial variation of voidage and pore size in porous materials such as porous catalyst support pellets[ A method has been suggested to estimate the values of the mass and pore fractal dimensions of the structures underlying NMR spin density images[ The method has been tested on simulated images of model structures of known geometry and shown to be a successful probe of the nature of the structure underlying an image[ This method is suggested as a way of selecting a suitable model to simulate the structural properties of real porous materials over length scales from 9[90Ð 09 mm[ Þ 0887 Elsevier Science Ltd[ All rights reserved[