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Journal Articles

High energy heavy ion induced structural disorder in Li$$_{2}$$TiO$$_{3}$$

Nakazawa, Tetsuya; Naito, Akira*; Aruga, Takeo; Grismanovs, V.*; Chimi, Yasuhiro; Iwase, Akihiro*; Jitsukawa, Shiro

Journal of Nuclear Materials, 367-370(2), p.1398 - 1403, 2007/08

 Times Cited Count:43 Percentile:92.87(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Swelling behavior of F82H steel irradiated by triple/dual ion beams

Wakai, Eiichi; Kikuchi, Kenji; Yamamoto, Shunya; Aruga, Takeo; Ando, Masami; Tanigawa, Hiroyasu; Taguchi, Tomitsugu; Sawai, Tomotsugu; Oka, Keiichiro*; Onuki, Somei*

Journal of Nuclear Materials, 318, p.267 - 273, 2003/05

 Times Cited Count:70 Percentile:96.81(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Disordering in Li$$_{2}$$TiO$$_{3}$$ irradiated with high energy ions

Nakazawa, Tetsuya; Grismanovs, V.*; Yamaki, Daiju; Katano, Yoshio*; Aruga, Takeo

Nuclear Instruments and Methods in Physics Research B, 206, p.166 - 170, 2003/05

 Times Cited Count:33 Percentile:88.19(Instruments & Instrumentation)

Li$$_{2}$$TiO$$_{3}$$ samples with high energy oxygen ions were examined by the use of Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The Raman spectra of the irradiated samples do not show any evidence of destruction of Li$$_{2}$$TiO$$_{3}$$ structure. On the other hand, the Bragg peak intensity of XRD is decreased with the increasing the ion fluence. Especially, the intensity of (002) supercell peak is drastically reduced after the irradiation to 1.2E+19 ions/m$$^{2}$$. This result implies that partial site mixing between Li and Ti atoms is induced by the irradiation. The transition to such a disordering is observed also by SEM examination; the grain structure at surface layer is vanished after the irradiation.

Journal Articles

Effects of triple ion beams in ferritic/martensitic steel on swelling behavior

Wakai, Eiichi; Sawai, Tomotsugu; Furuya, Kazuyuki; Naito, Akira; Aruga, Takeo; Kikuchi, Kenji; Yamashita, Shinichiro*; Onuki, Somei*; Yamamoto, Shunya; Naramoto, Hiroshi; et al.

Journal of Nuclear Materials, 307-311(Part.1), p.278 - 282, 2002/12

 Times Cited Count:51 Percentile:93.7(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Depth-dependent and surface damages in MgAl$$_{2}$$O$$_{4}$$ and MgO irradiated with energetic iodine ions

Aruga, Takeo; Katano, Yoshio*; Omichi, Toshihiko*; Okayasu, Satoru; Kazumata, Yukio*; Jitsukawa, Shiro

Nuclear Instruments and Methods in Physics Research B, 197(1-2), p.94 - 100, 2002/11

 Times Cited Count:9 Percentile:51.46(Instruments & Instrumentation)

no abstracts in English

Journal Articles

The Interpretation of surface damages in Al$$_{2}$$O$$_{3}$$, MgAl$$_{2}$$O$$_{4}$$ and MgO irradiated with energetic iodine ions

Aruga, Takeo; Katano, Yoshio*; Omichi, Toshihiko*; Jitsukawa, Shiro

Surface & Coatings Technology, 158-159, p.444 - 448, 2002/09

no abstracts in English

Journal Articles

JENDL PKA/KERMA file for IFMIF project

Fukahori, Tokio; Chiba, Satoshi; Shibata, Keiichi; Ikeda, Yujiro; Aruga, Takeo; Watanabe, Yukinobu*; Murata, Toru*; Yamano, Naoki*; Kawai, Masayoshi*

Reactor Dosimetry: Radiation Metrology and Assessment (ASTM STP 1398), p.591 - 598, 2001/00

no abstracts in English

Journal Articles

Effects of co-implanted oxygen or aluminum atoms on hydrogen migration and damage structure in multiple-beam irradiated Al$$_{2}$$O$$_{3}$$

Katano, Yoshio*; Aruga, Takeo; Yamamoto, Shunya; Nakazawa, Tetsuya; Yamaki, Daiju; Noda, Kenji

Journal of Nuclear Materials, 283-287(Part.2), p.942 - 946, 2000/12

 Times Cited Count:0 Percentile:0.01(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Amorphization behaviors in polycrystalline alumina irradiated with energetic iodine ions

Aruga, Takeo; Katano, Yoshio; Omichi, Toshihiko; Okayasu, Satoru; Kazumata, Yukio

Nuclear Instruments and Methods in Physics Research B, 166-167, p.913 - 919, 2000/05

 Times Cited Count:32 Percentile:86.9(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Study of ion-induced damage in Li$$_{2}$$TiO$$_{3}$$ ceramics

Nakazawa, Tetsuya; Grismanovs, V.*; Yamaki, Daiju; Katano, Yoshio*; Aruga, Takeo; Iwamoto, Akira

Proceedings of 2000 International Conference on Ion Implantation Technology (IIT 2000), p.753 - 756, 2000/00

no abstracts in English

Journal Articles

Effect of implanted-Helium depth profile on damage structures in electron-irradiated stainless steel

Aruga, Takeo; Katano, Yoshio*

Proceedings of 2000 International Conference on Ion Implantation Technology (IIT 2000), p.797 - 800, 2000/00

no abstracts in English

Journal Articles

Implantation mode dependence of damage structure depth profiles in Al$$_{2}$$O$$_{3}$$ irradiated with triple beam of H, He and heavy ions

Katano, Yoshio*; Aruga, Takeo; Yamamoto, Shunya; Nakazawa, Tetsuya; Yamaki, Daiju

Proceedings of 2000 International Conference on Ion Implantation Technology (IIT 2000), p.805 - 808, 2000/00

no abstracts in English

Journal Articles

Damage structure evolution in Al$$_{2}$$O$$_{3}$$ irradiated with multiple ion beams of H,He and O and after annealing

Katano, Yoshio; ; Yamaki, Daiju; Aruga, Takeo; Noda, Kenji

Journal of Nuclear Materials, 258-263, p.1842 - 1847, 1998/00

 Times Cited Count:6 Percentile:49.22(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Cross-sectional observation of damage structures in Al$$_{2}$$O$$_{3}$$ irradiated with multiple beams of H,He and O ions and after annealing at 1273K

Katano, Yoshio; ; Yamaki, Daiju; Aruga, Takeo; Noda, Kenji; Yamamoto, Shunya

Nuclear Instruments and Methods in Physics Research A, 140(1-2), p.152 - 158, 1998/00

no abstracts in English

Journal Articles

Cavity formation in single crystal Al$$_{2}$$O$$_{3}$$ irradiated with triple beams of O,H and He ions

Katano, Yoshio; Hojo, Kiichi; ; Yamaki, Daiju; Aruga, Takeo; Noda, Kenji

Nuclear Instruments and Methods in Physics Research B, 141(1-4), p.411 - 418, 1998/00

 Times Cited Count:6 Percentile:49.22(Instruments & Instrumentation)

no abstracts in English

Oral presentation

Observation of microstructural changes in lithium titanate with multi-ion irradiation by using FTIR-PAS

Yamaki, Daiju; Aruga, Takeo; Tanifuji, Takaaki*; Jitsukawa, Shiro

no journal, , 

The microstructural changes in lithium titanate, which is regarded as one of the most suitable candidates for the solid tritium breeder material of D-T fusion reactors, irradiated with the H$$^{+}$$, He$$^{+}$$ and O$$^{2+}$$ beams were observed by FT-IR PAS. The results suggest that the amount of TiO$$_{2}$$ formed in the material and OH$$^{-}$$ near the surface are strongly affected by displacement per atom occurred with irradiation and the method of irradiation. This suggests that the microstructural changes in lithium titanate by irradiation affect the tritium release behavior generated by nuclear reaction, and the compatibility between the breeding materials and the structural materials.

16 (Records 1-16 displayed on this page)
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