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Plasma-Material Interaction Data Set 249
Solubility of D 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: 99.95 wt%
- Method: Experiment
- Data scaled for isotope mass? No
- Ks0 = 0.115 mol m-3 Pa-1/2
- Es = 0.25 eV
- T = 850 – 950 K
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- B80: A. Fedorov, A. Magielsen, M. Stijkel, "Tritium permeation in EUROFER97 steel in EXOTIC-9/1 irradiation experiment
", Journal of Nuclear Materials 448, 139-143 (2014). [10.1016/j.jnucmat.2014.01.022]
Comment
P^0.5 behaviour confirmed. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.