Return to search
Plasma-Material Interaction Data Set 26
Diffusivity of H in W
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: W
- Method: Experiment
- Data scaled for isotope mass? Yes
- D0 = 4.10(50)e-7 m2 s-1
- Ed = 0.390(90) eV
- T = 1100 – 2400 K
Download JSON
- B26: R. Frauenfelder, "Solution and Diffusion of Hydrogen in Tungsten
", Journal of Vacuum Science and Technology 6, 388-397 (1969). [10.1116/1.1492699]
Comment
[Should the uncertainty in D0 be 10x larger?]