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Plasma-Material Interaction Data Set 228
Diffusivity of T in Li2TiO3
$$
D = D_0 \exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)
$$
[In the above formula, the Boltzmann constant is expressed in \(\mathrm{eV\,K^{-1}}\).]
- Material: Li2TiO3
- Material composition: 98%
- Method: Experiment
- Data scaled for isotope mass? No
- D0 = 1e-05 m2 s-1
- Ed = 1.08 eV
- T = 625 – 1373 K
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- B108: T. Tanifuji, D. Yamaki, S. Nasu, K. Noda, "Tritium release behavior from neutron-irradiated Li 2TiO 3 single crystal
", Journal of Nuclear Materials 258-263, 543-548 (1998). [10.1016/s0022-3115(98)00103-2]
Comment
Authors conform that tritium release from crystals is controlled by diffusion. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.