Abstract
We improve our previous kinetic model of hydrogen transport in Ti [Y. Hamamoto et al., Nucl. Mater. Energy 23 (2020) 100751]. The model becomes applicable to both the directional processes of absorption and desorption. The limitation in the covered range of hydrogen molar fraction, previously up to 1 mol-H/mol-Ti, is dissolved. The numerical calculations based on the model with a single set of kinetic parameters closely reproduce a series of experimental hydrogen absorption and desorption data for various temperatures, and thus verify the validity of the model.
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