Return to search
Plasma-Material Interaction Data Set 28
Diffusivity of T in Be
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Be
- Method: Experiment
- Data scaled for isotope mass? No
- D0 = 8e-09 m2 s-1
- Ed = 0.36 eV
- T = 298 – 770 K
Download JSON
- B29: R. Causey, W. Hsu, B. Mills, J. Ehrenberg, V. Phillips, "Tritium retention and migration in beryllium
", Journal of Nuclear Materials 176-177, 654-660 (1990). [10.1016/0022-3115(90)90122-4]
Comment
Data as provided by G. de Temmerman (ITER); compare with values in Table 1 of Causey et al.: D0 = 3e-11 m2.s-1, Ed = 0.19 eV ??