Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/54388
Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Pranevičius, Liudvikas;Templier, Claude;Pranevičius, Liudas;Milčius, Darius
Title: Influence of surface barriers on hydrogen storage in MgAl films on permeable stainless steel membranes
Is part of: Vacuum. Amsterdam : Elsevier Ltd., 2005, Vol. 78, Iss. 2-4
Extent: p. 367-373
Date: 2005
Note: Proceedings of the 5th International Conference on Ion Implantation and other Applications of Ions and Electrons (ION 2004) 14-17 June 2004
Keywords: Hydrogen storage;Ion implantation;Surface barriers;MgAl films;Stainless steel
Abstract: The behavior of hydrogen in the plasma hydrogenated MgAl films on stainless steel membranes, in particular, the effect of surface and interface properties on the efficiency of hydrogenation and kinetics of hydrogen effusion were investigated. The paper aims at optimizing the processes of hydrogen retention and its thermal release on the basis of a model based on the "trapping" of hydrogen between the symmetric and asymmetric potential walls on the boundaries of the inlet and outlet sides of samples. The efficient retention of hydrogen was observed in the MgAl films protected by thin Al2O3 barrier layers on both film surfaces. The hydrogen effusion temperature dropped from 650 K for hydrogen trapped in the symmetric potential well down to 450 K for hydrogen trapped in the asymmetric one. The structural modifications and formation of hydrides were identified in the plasma hydrided MgAl films using X-ray diffraction. The hydrogen distribution profiles were investigated in the MgAl films and stainless steel membranes employing glow discharge optical emission spectroscopy. Thermal desorption analysis revealed the hydrogen effusion kinetics
Internet: https://doi.org/10.1016/j.vacuum.2005.01.051
Affiliation(s): Lietuvos energetikos institutas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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