pwiDB

Plasma-Material Interaction Data Set 152

Permeation of H in Al2O3

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

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

Material: Al2O3
Material composition: 99.70%
Method: Experiment
Data scaled for isotope mass? No

P₀ = 3.3e-10 mol m^-1 s^-1 Pa^-1/2
E_p = 0.82 eV
T = 1273 – 1673 K

Comment

Time-dependent permeation method (gas-phase), obtain P using experimental Q(t), have a ~p0.5 dependence. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.

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B83: E. Serra, A. Calza Bini, G. Cosoli, L. Pilloni, "Hydrogen Permeation Measurements on Alumina", Journal of the American Ceramic Society 88, 15-18 (2004). [10.1111/j.1551-2916.2004.00003.x]