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Plasma-Material Interaction Data Set 212

Diffusivity of H in Ni

$$ D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right) $$

[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]

Comment

Time lag method for diffusivity, square root pressure dependence confirmed. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.

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  1. B90: Y. Ebisuzaki, W. J. Kass, M. O'Keeffe, "Diffusion and Solubility of Hydrogen in Single Crystals of Nickel and Nickel—Vanadium Alloy ", The Journal of Chemical Physics 46, 1378-1381 (1967). [10.1063/1.1840860]