The role of non-ideality in H permeation through membranes

Non-ideality may be important for H diffusion through metallic membranes at large concentrations. This is easily allowed for if the H concentration in the membrane is nearly constant, but if there is a large gradient, the degree of non-ideality will vary across the membrane. A procedure is given in...

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Bibliographic Details
Published inScripta materialia Vol. 56; no. 4; pp. 261 - 263
Main Authors Flanagan, Ted B., Wang, D., Shanahan, K.L.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.02.2007
Subjects
Diffusion
Interstitial
Diffusion
Interstitial
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Summary:Non-ideality may be important for H diffusion through metallic membranes at large concentrations. This is easily allowed for if the H concentration in the membrane is nearly constant, but if there is a large gradient, the degree of non-ideality will vary across the membrane. A procedure is given in this paper for the conversion of the measured concentration-dependent diffusion coefficients to the concentration-independent one when there is a significant gradient.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2006.10.029