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Plasma-Material Interaction Data Set 165

Permeation of D in Y2O3

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

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

Comment

Post-annealed seemed to have higher activation energies. Gas permeation self-made apparatus from before. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.

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  1. 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]