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2008 | 113 | 4 | 1237-1244
Article title

Neutron Radiography Studies of Water Self-Diffusion in Porous Medium

Content
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EN
Abstracts
EN
The results of neutron radiography studies on macroscopic self-diffusion of water confined within rigid porous material reveal the substantial reduction in diffusion constant in comparison to the diffusion in large volume. The studies performed in the 30-50°C temperature range on fired clay brick of 30% porosity show decrease in diffusion constant to approximately 17% of its value for free space and the Archie exponent is 1.4. The Arrhenius law was confirmed and the activation energy was found of the same value as in the water bulk.
Keywords
Year
Volume
113
Issue
4
Pages
1237-1244
Physical description
Dates
published
2008-04
received
2007-06-03
References
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  • 3. R.E. Cunningham, R.J.J. Williams, Diffusion in Gases and Porous Media, Plenum Press, New York 1980
  • 4. P.N. Sen, in: Porous Media in Processes with Long- Range Correlations. Theory and Applications, Eds. G. Rangarajan, M. Ding, Springer-Verlag, Berlin 2003, p. 181
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n415kz
Identifiers
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