1. Interaction of hydrogen with an Mg–Al alloy
- Author
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Andreasen, A., Sørensen, M.B., Burkarl, R., Møller, B., Molenbroek, A.M., Pedersen, A.S., Andreasen, J.W., Nielsen, M.M., and Jensen, T.R.
- Subjects
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OPTICAL diffraction , *HYDROGEN , *INTERFEROMETRY , *ALLOYS - Abstract
Abstract: The interaction of hydrogen with an Mg–Al alloy pre-exposed to air have been studied with in situ time resolved X-ray powder diffraction. Phase fractions as a function of time are derived from series of consecutive diffraction patterns allowing kinetic analysis. The apparent activation energy for dehydrogenation of the Mg–Al alloy is found to be 160 kJ/mol. This is not significantly higher than for pure and fully activated Mg. It is suggested that the addition of Al improves the resistance towards oxygen contamination. [Copyright &y& Elsevier]
- Published
- 2005
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