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Plasma-Material Interaction Data Set 143
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: 99.96%
- Method: Experiment
- Data scaled for isotope mass? No
- P0 = 7.77e-07 mol m-1 s-1 Pa-1/2
- Ep = 0.580(10) eV
- T = 573 – 753 K
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- B77: Y. Wang, L. Xiong, S. Liu, "Rapid Hydrogen Transportation Along Grain Boundary in Nickel", Acta Metallurgica Sinica (English Letters) 27, 615-620 (2014). [10.1007/s40195-014-0102-y]
Comment
Pressure dependence not shown. Results here for single crystal; results for directionally solidified polycrystalline Ni also given in the paper. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.