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Plasma-Material Interaction Data Set 243
Solubility of H in W
$$
K_\mathrm{s} = K_\mathrm{s0}\exp \left(-\frac{E_\mathrm{s}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: W
- Material composition: 99.95wt%
- Method: Experiment
- Data scaled for isotope mass? No
- Ks0 = 1.47 mol m-3 Pa-1/2
- Es = 1.04(17) eV
- T = 1120 – 2080 K
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- B26: R. Frauenfelder, "Solution and Diffusion of Hydrogen in Tungsten
", Journal of Vacuum Science and Technology 6, 388-397 (1969). [10.1116/1.1492699]
Comment
Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.