pwiDB

Plasma-Material Interaction Data Set 161

Permeation of D in 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: Er2O3
Method: Experiment
Data scaled for isotope mass? No

P₀ = 2e-12 mol m^-1 s^-1 Pa^-1/2
E_p = 0.590797165 eV
T = 823 – 973 K

Comment

Composite seen to decrease permeability up to a certain Cr2O3 thickness (80nm). Self-made apparatus that had a permeation chamber and vacuum. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.

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B96: Y. Wu, S. Wang, S. Li, D. He, X. Liu, L. Jiang, H. Huang, "Deuterium permeation properties of Er₂O₃/Cr₂O₃ composite coating prepared by MOCVD on 316L stainless steel ", Fusion Engineering and Design 113, 205-210 (2016). [10.1016/j.fusengdes.2016.09.007]