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Tritium release and retention in beryllium and titanium beryllide after neutron irradiation up to damage doses of 23-38 dpa
https://repo.qst.go.jp/records/82079
https://repo.qst.go.jp/records/82079fd727b41-856c-4490-89d1-5d973a054adf
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-09 | |||||
タイトル | ||||||
タイトル | Tritium release and retention in beryllium and titanium beryllide after neutron irradiation up to damage doses of 23-38 dpa | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Chakin, Vladimir
× Chakin, Vladimir× Rolli, Rolf× Gaisin, Ramil× Ursula, Hoeppener-Kramar× Nakamichi, Masaru× Zmitko, Milan× Masaru, Nakamichi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Titanium beryllide is considered as an advanced neutron multiplier in the Helium Cooled Pebble Bed (HCPB) blanket of DEMO. Neutron irradiation of titanium beryllide together with beryllium as a reference material in material testing nuclear reactors can give essential data for the DEMO blanket design. Be-7at.%Ti (Be-7Ti) as well as Be were irradiated in the HFR, Petten, the Netherlands, at four temperatures of 710, 800, 940, 1040 K up to 23, 31, 36, 38 dpa, respectively. The post-irradiation examination (PIE) included thermal-programmed desorption (TPD) and Vickers hardness tests as well as microstructure study by optical metallography. Be and Be-7Ti pellets maintained their integrity after irradiation. Microstructure of Be-7Ti contains two phases, mainly, TiBe12, and also small amount of Be. Under irradiation, gas bubbles were formed in Be samples as well as in Be-phase in Be-7Ti samples. These bubbles contain helium and tritium produced in Be under irradiation. TPD tests showed a much lower tritium retention in Be-7Ti than in Be for all four irradiation temperatures. Vickers hardness of TiBe12 phase is much higher than that of Be-phase. According to the obtained data, Be-7Ti could be considered more preferred than Be as a neutron multiplier material in future fusion reactors due to the enhanced radiation damage resistance. | |||||
書誌情報 |
Fusion Engineering and Design 巻 161, p. 111938, 発行日 2020-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0920-3796 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.fusengdes.2020.111938 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.sciencedirect.com/science/article/pii/S0920379620304865 |