pwiDB

Plasma-Material Interaction Data Set 158

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 $\mathrm{eV\,K^{-1}}$.]

Material: Al2O3-Er2O3
Alloy: AE-700
Method: Experiment
Data scaled for isotope mass? No

P₀ = 1e-08 mol m^-1 s^-1 Pa^-1/2
E_p = 0.621891753 eV
T = 473 – 873 K

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.

Download JSON

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]