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Plasma-Material Interaction Data Set 231
Diffusivity of T in BeO
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: BeO
- Material composition: 99.95%
- Method: Experiment
- Data scaled for isotope mass? No
- D0 = 1.11e-06 m2 s-1
- Ed = 2.27 eV
- T = 923 – 1473 K
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- B109: J. D. Fowler, D. Chandra, T. S. Elleman, A. W. Payne, K. Verghese, "Tritium Diffusion in Al2O3 and BeO", Journal of the American Ceramic Society 60, 155-161 (1977). [10.1111/j.1151-2916.1977.tb15493.x]
Comment
Single crystal BeO. Recoiling Tritium into specimens and measured the rate of Tritium release during post irradiation heating. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.