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Plasma-Material Interaction Data Set 110
Permeation of D in Steel
$$
P = P_0 \exp\left(-\frac{E_\mathrm{p}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Steel
- Alloy: G91
- Method: Experiment
- Data scaled for isotope mass? No
- P0 = 6.64e-09 mol m-1 s-1 Pa-1/2
- Ep = 0.34 eV
- T = 623 – 873 K
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- B103: Z. Chen, X. Hu, M. Ye, B. D. Wirth, "Deuterium transport and retention properties of representative fusion blanket structural materials
", Journal of Nuclear Materials 549, 152904 (2021). [10.1016/j.jnucmat.2021.152904]
Comment
P^1/2 behaviour for permeability confirmed. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.