Evidently, the diffusion coefficient is delicate to impurities or structural concerns inside the crystal, but that remains to become quantified. For our tough estimates of the time at temperature necessary to get rid of the hydrogen from our samples, the hydrogen diffusion coefficient preferred is supplied by Belonoshko et al. https://ilovebookmarking.com/story18085190/sri-lankan-pukhraj-no-further-a-mystery