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Hydrogenation of $$L$$1$$_{2}$$-type AlNi$$_{3}$$ alloy at high pressure and temperature

$$L$$1$$_{2}$$型構造AlNi$$_{3}$$合金の高温高圧水素化

遠藤 成輝*; 齋藤 寛之; 町田 晃彦; 片山 芳則

Endo, Naruki*; Saito, Hiroyuki; Machida, Akihiko; Katayama, Yoshinori

We investigated the hydrogenation of the $$L$$1$$_{2}$$-type AlNi$$_{3}$$ alloy at 3 GPa and 500$$^{circ}$$C using in situ synchrotron radiation X-ray diffraction measurements. An isotropic lattice expansion was observed to have occurred owing to the hydrogenation, and a novel hydride (AlNi$$_{3}$$H$$_{x}$$) was formed. Because of such isotropic lattice expansion, the hydrogen-occupied sites were the body-center sites of the $$L$$1$$_{2}$$ structure (P$$m$$-3$$m$$). In this case, the hydrogen content was calculated to be $$x$$ = 1.0, which is consistent with the experimental results. The AlNi$$_{3}$$H$$_{x}$$ hydride was stable under ambient conditions.

使用言語

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English

掲載資料名

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Journal of Alloys and Compounds

巻

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645

号

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Suppl.1

ページ数

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p.S61 - S63

発行年月

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2015/10

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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Hydride; High pressure and high temperature; Synchrotron radiation; AlNi3

特許データ

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PDF

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論文URL

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https://doi.org/10.1016/j.jallcom.2015.01.200

研究データの公開先DOI

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使用施設

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SPring-8(大型放射光施設)

広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

InCites™

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パーセンタイル：0.01

分野：Chemistry, Physical

Altmetrics

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