Transport of H through asymmetric metal layers
| Autor: | B I Yakobson |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Materials science
Condensed matter physics Hydrogen media_common.quotation_subject chemistry.chemical_element Condensed Matter Physics Asymmetry Atomic and Molecular Physics and Optics Dissociation (chemistry) Metal Nonlinear system chemistry visual_art visual_art.visual_art_medium Physical chemistry Mathematical Physics media_common |
| Zdroj: | Physica Scripta. 36:513-515 |
| ISSN: | 1402-4896 0031-8949 |
| DOI: | 10.1088/0031-8949/36/3/024 |
| Popis: | The nonlinear dependence of the transport equations on solute concentration leads to different permeabilities in the forward and backward directions in an inhomogeneous solid layer. The asymmetry is calculated for the case of hydrogen diffusion through metal, when at least two mechanisms of nonlinearity must be taken into account: the H2 dissociation at the surface and saturation effects. It is shown that the dissociative nonlinearity itself does not cause any significant asymmetry, in spite of qualitative expectations, while the permeability asymmetry may occur to be strong when saturation effects are considerable. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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