Return to search
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
Download JSON
- 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).