Phase field modeling of hydrogen transport and reaction in metal hydrides

The proposed model is then used for LaNi5 and TiCrMn to examine how the nucleation pattern, kinetic parameters, and particle aspect ratio affect the time of formation of a closed hydride layer and the apparent measured kinetics. The analysis is applied to both hydriding and dehydriding processes to show how different kinetic limitation mechanisms can manifest when considering the reciprocal reaction.