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Plasma-Material Interaction Data Set 145
Permeation of H in Ni
$$
P = P_0 \exp\left(-\frac{E_\mathrm{p}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Ni
- Material composition: 99.4 wt%
- Method: Experiment
- Data scaled for isotope mass? No
- P0 = 3.56e-07 mol m-1 s-1 Pa-1/2
- Ep = 0.57 eV
- T = 723 – 1123 K
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- B71: J. Gorman, W. Nardella, "Hydrogen permeation through metals
", Vacuum 12, 19-24 (1962). [10.1016/0042-207x(62)90821-7]
Comment
Permeation from metallic cylinder. Lee (2013) give different value for P0, but my conversion of units is correct. Mol refers to mol (H2). Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.