| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-05-27 |
| タイトル |
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タイトル |
Deuterium retention properties and bubble behaviors of Be12Ti after irradiation with D+ at high temperature |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Sugimoto Yutaka
Mitutaka Miyamoto
Jaehwan Kim
Taehyun Hwang
Nakano Suguru
Nakamichi Masaru
Tanigawa Hiroyasu
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In the Japanese demonstration (JA DEMO) fusion reactor, Be12Ti blocks as a neutron multiplying material and Li2TiO3 pebbles as a breeding material will be planned to set in the blanket. When the replacement of the blanket due to the life of the structure materials, tritium generation with 200 appm T in Be12Ti blocks can be anticipated. The Be12Ti blocks containing tritium may cause several problematic issues in JA DEMO. The objective of this study aimed to evaluate the correlation between deuterium (D) retention properties and the bubble behaviors in Be12Ti.
We investigated the D retention properties in the Be12Ti samples, which were irradiated with D+ ions at R.T.-873 K using thermal desorption spectroscopy. The bubble behaviors in the thin Be12Ti samples were observed under annealing using in-situ transmission electron microscope (TEM). And the Be samples were prepared to be comparable with Be12Ti and done similarly to the same experiment.
The D desorption peaks were confirmed from the mechanical-polished and electropolished Be12Ti samples after irradiation with D+ at R.T. and high temperature. For both mechanical-polished and electropolished Be12Ti samples, the desorption peak shifted to higher temperatures with increasing irradiation temperatures. In-situ TEM observed the bubble behaviors, and Most of the bubbles wouldn’t change in thin Be12Ti samples after irradiation with D+ at R.T. and 673 K during annealing (~1073 K). These results indicate that no correlation between the deuterium releases and the bubble behavior in Be12Ti until 1073 K. |
| 書誌情報 |
Fusion Engineering and Design
巻 218,
p. 115220,
発行日 2025-05
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