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Journal Articles

The Development of method for extinguishing / treating metallic sodium using calcium chloride

Abe, Yuta; Nagai, Keiichi; Maie, Mitsuyoshi*; Nakano, Natsuko*; Kawashima, Yuichi*; Takesue, Naohisa*; Saito, Junichi

Dai-23-Kai Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu (USB Flash Drive), 5 Pages, 2018/06

no abstracts in English

Journal Articles

Development of advanced tritium breeding material with added lithium for ITER-TBM

Hoshino, Tsuyoshi; Kato, Kenichi*; Natori, Yuri*; Oikawa, Fumiaki; Nakano, Natsuko*; Nakamura, Mutsumi*; Sasaki, Kazuya*; Suzuki, Akihiro*; Terai, Takayuki*; Tatenuma, Katsuyoshi*

Journal of Nuclear Materials, 417(1-3), p.684 - 687, 2011/10

 Times Cited Count:41 Percentile:95.3(Materials Science, Multidisciplinary)

Lithium titanate (Li$$_{2}$$TiO$$_{3}$$) is one of the most promising candidates among tritium breeding materials because of its good tritium release. Addition of H$$_{2}$$ to inert sweep gas has been proposed for enhancing the tritium release from tritium breeding materials. However, the mass of Li$$_{2}$$TiO$$_{3}$$ was decreased with time in the hydrogen atmosphere. It is assumed that the mass decrease indicates the loss of the oxygen contained in the sample caused by the change from Ti $$^{4+}$$ to Ti $$^{3+}$$, and that the partial pressures of Li-containing species were increased in the hydrogen atmosphere. In order to decrease the mass-change at high temperature, advanced tritium breeding material with added Li should be developed to improve the physical and chemical stability in hydrogen atmosphere. In the case of the Li$$_{2+x}$$TiO$$_{3+y}$$ samples used by the present study, LiOHH$$_{2}$$O and H$$_{2}$$TiO$$_{3}$$ were proportionally mixed with the molar ratio Li/Ti of either 2.0 and 2.2. These samples are designated as L20 (Li/Ti = 2.0) and L22 (Li/Ti = 2.2), respectively. The results of XRD measurement showed that the phases in advanced tritium breeding material were as follows. L22 existed as non-stoichiometric compound Li$$_{2+x}$$TiO$$_{3+y}$$.

Oral presentation

LIBS technique for test piece of high radioactive oxide contaminants

Kawakami, Tomohiko*; Nakano, Natsuko*; Takagi, Kazunari*; Spaziani, F.*; Hanamoto, Yukio*; Abe, Yuta

no journal, , 

no abstracts in English

Oral presentation

Development of plasma heating technology for simulation of LWR severe accident behavior, 3; Consideration of a wide range of oxygen mapping analysis method using the EPMA

Abe, Yuta; Nakagiri, Toshio; Sato, Ikken; Nakano, Natsuko*; Tanaka, Hiroshi*; Yamaguchi, Hidenobu*

no journal, , 

no abstracts in English

Oral presentation

Consideration of material analysis using simulated fuel assembly heating test, 1; Outline of evaluation in simulated fuel assembly heating test

Abe, Yuta; Nakagiri, Toshio; Sato, Ikken; Nakano, Natsuko*; Yamaguchi, Hidenobu*

no journal, , 

no abstracts in English

Oral presentation

Consideration of material analysis using simulated fuel assembly heating test, 2; Study of the evaluation method by LIBS

Kawakami, Tomohiko*; Abe, Yuta; Spaziani, F.*; Nakano, Natsuko*; Nakagiri, Toshio

no journal, , 

no abstracts in English

Oral presentation

Evaluation method using material analysis of specimen in plasma heating experiment, 1; Outline of evaluation method using material analysis of specimen in plasma heating experiment

Abe, Yuta; Nakagiri, Toshio; Sato, Ikken; Nakano, Natsuko*; Yamaguchi, Hidenobu*; Maruyama, Shinichiro*

no journal, , 

no abstracts in English

Oral presentation

Evaluation method using material analysis of specimen in plasma heating experiment, 2; Application possibility of materials analysis and LIBS using the plasma basics heating experiment

Kawakami, Tomohiko*; Abe, Yuta; Spaziani, F.*; Nakano, Natsuko*; Nakagiri, Toshio

no journal, , 

no abstracts in English

Oral presentation

The Development of extinguishing/stabilizing treatment method for metallic sodium

Abe, Yuta; Nagai, Keiichi; Maie, Mitsuyoshi*; Nakano, Natsuko*; Saito, Junichi

no journal, , 

no abstracts in English

Oral presentation

Establishment of evaluation method using material analysis of simulated fuel assembly heating test, 3; Evaluation method of oxygen and boron using LIBS

Okazaki, Kodai*; Abe, Yuta; Spaziani, F.*; Nakano, Natsuko*; Kawakami, Tomohiko*

no journal, , 

no abstracts in English

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