Return to search
Plasma-Material Interaction Data Set 194
Diffusivity of T in Steel
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Steel
- Alloy: OPTIFER-IVb
- Method: Experiment
- Data scaled for isotope mass? No
- D0 = 4.170(13)e-8 m2 s-1
- Ed = 0.12 eV
- T = 423 – 892 K
Download JSON
- B86: G. Esteban, A. Perujo, K. Douglas, L. Sedano, "Tritium diffusive transport parameters and trapping effects in the reduced activating martensitic steel OPTIFER-IVb
", Journal of Nuclear Materials 281, 34-41 (2000). [10.1016/s0022-3115(00)00188-4]
Comment
RAM: measurement of outgassing from cylindrical sample, giving values for diffusivity. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.