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Plasma-Material Interaction Data Set 246
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: 99.97%
- Method: Experiment
- Data scaled for isotope mass? No
- Ks0 = 4.49 mol m-3 Pa-1/2
- Es = 1.13 eV
- T = 1200 – 2600 K
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- B62: G. Holzner, "Determining fundamental transport parameters of hydrogen isotopes in tungsten", [missing journal] (2020). [https://mediatum.ub.tum.de/?id=1542224]
Comment
Gas loading of cylindrical W specimen followed by unloading at given temperature and measurement of released H/D. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.