Return to search
Plasma-Material Interaction Data Set 7
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? Yes
- D0 = 6.53e-09 m2 s-1
- Ed = 0.364 eV
- T = 620 – 775 K
Download JSON
- B11: E. Abramov, M. Riehm, D. Thompson, W. Smeltzer, "Deuterium permeation and diffusion in high-purity beryllium
", Journal of Nuclear Materials 175, 90-95 (1990). [10.1016/0022-3115(90)90274-q]
Comment
Data for tritium scaled from deuterium gas-driven permeation experiments in "high-grade (99%) beryllium".