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Stress induced changes in hydrogen pressure in contact with tubular diffusion membrane

Author:

Kathirkamanathan Kandasamy

Department of Physics, University of Jaffna, LK
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Abstract

Hydrogen permeation studies in Palladium and Palladium alloys reveal that hydrogen diffusion is non-Fickian in metals and their alloys due to the stress field induced by the hydrogen in their lattice. Previously the non-Fickian, uphill diffusion of hydrogen in Pd81Pt19 alloy membrane was explained by attributing it to the modification in the space-time variation of the concentration of dissolved hydrogen in the metal lattice due to Diffusion-Elastic effect. This paper reports evidence for the combined effect on the space-time variation of the concentration of dissolved hydrogen in the lattice by the Gorsky effect and the Diffusion-Elastic effect when hydrogen diffusion initiated in the diffusion membrane either by suddenly increasing or reducing the hydrogen pressure at one wall of the membrane.  

How to Cite: Kandasamy, K., (2017). Stress induced changes in hydrogen pressure in contact with tubular diffusion membrane. Vingnanam Journal of Science. 12(1-2), pp.10–17. DOI: http://doi.org/10.4038/vingnanam.v12i1-2.4120
Published on 30 Jan 2017.
Peer Reviewed

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