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Plasma-Material Interaction Data Set 159

Permeation of D in Al2O3-Er2O3

$$ P = P_0 \exp\left(-\frac{E_\mathrm{p}}{k_\mathrm{B}T}\right) $$

[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]

Comment

Samples were annealed in Ar at different temperatures, leading to the differences in values. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.

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  1. B102: J. Wang, Q. Li, Q. Xiang, T. Tang, Y. Rao, J. Cao, "Study of Al2O3–Er2O3 composite coatings as hydrogen isotopes permeation barriers ", International Journal of Hydrogen Energy 41, 1326-1332 (2016). [10.1016/j.ijhydene.2015.11.042]