Observation of the microstructural changes in lithium titanate by multi-ion irradiation

Effects of multi-ion irradiation on microstructural changes in lithium titanate

“…In this case, there is no relation between the increase of 3450 cm À1 peak area and the amount of doped TiO 2 . Thus, it suggests that the increase of 3450 cm À1 peak area observed in the irradiation samples has no relation to the formation of TiO 2 by irradiation [6]. As shown in Fig.…”

“…From the results of FT-IR PAS measurements using Li 2 TiO 3 samples doped with 1-10% TiO 2 , which simulate the formation of TiO 2 in Li 2 TiO 3 , it was shown that the 780 cm À1 peak area increases in proportion to the ratio of doped TiO 2 [6]. Therefore, the results shown in Fig.…”

“…1 [6]. For comparison, the spectrum of irradiated sample with the triple ion beam is also shown in the figure.…”

“…This means that the necessary amount of defects for the simulation can be generated within hours of the irradiation. In the previous study [5,6], the formation of TiO 2 layer on the surface of Li 2 TiO 3 by irradiation with triple ions has been found. From comparison with the results of single beam irradiation of O 2+ , He + and H + , it was found that the amount of the formed TiO 2 was strongly affected by the radiation dose in displacement per atom (dpa).…”

“…In the fusion reactor environment irradiation damage will be caused by fast neutrons, energetic tritons (2.7 MeV) and helium ions (2.1 MeV) generated in 6 Li(n,a) 3 H reaction. The irradiation damage will result in microstructural changes that may affect the characteristics of the breeding materials, especially the tritium release behavior, compatibility with other materials, and so on [4].…”