Hydrogen diffusion: a simple approach using Mössbauer spectroscopy
A simple approach for finding the activation energy for hydrogen diffusion is presented. This approach has been used to obtain the activation energy of hydrogen diffusion in the β-range of (Fe1-Y NiY TiHX (x>1.0) using our Mössbauer results. The general validity of this approach has been established by showing that the Ea value found using this formalism for57Fe doped vanadium and niobium hydride systems is almost equal to that obtained by Wagner and co-workers /1–3/ who obtained it by monitoring the temperature dependence of the quasi-elastic component of the Mössbauer spectrum. An approximate estimate of Do values is also presented.
KeywordsHydrogen Spectroscopy Thin Film Activation Energy Vanadium
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