Displaced-T Site Occupancy of Hydrogen in Nb Alloyed with a High Concentration of Mo (Cross-disciplinary Physics and Related Areas of Science and Technology)
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概要
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The site occupancy of hydrogen in 52 at. % Nb-48 at. % Mo alloys is investigated at room temperature for hydrogen concentrations 0.028 and 0.055 in the hydrogen-metal-atom ratio (C_H=[H]/[M]) by the channelling method utilizing a nuclear reaction ^1H(^<11>B,α)αα with a ^<11>B beam. A large portion of H atoms are located at sites displaced from tetrahedral (T) sites towards their nearest neighbour octahedral (O) sites by about 0.3Å (displaced-T sites; d-T), which are similar to the sites observed in V under uniaxial stress and completely different from the sites observed in the Nb alloys containing undersized Mo atoms up to 26 at. %. For C_H=0.028 and 0.055, 30-40% and 15-25% of H atoms are located at T sites, respectively.
- 社団法人日本物理学会の論文
- 2006-03-15
著者
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SUGAWARA Takamasa
Institute for Materials Research (IMR), Tohoku University
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SHISHIDO Toetsu
Institute for Materials Research (IMR), Tohoku University
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Shishido Toetsu
Tohoku Univ. Sendai
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KOIKE Shigetoshi
Department of Physics II,Science University of Tokyo
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Koike Shigetoshi
Department Of Physics Ii Tokyo University Of Science
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Koike Shigetoshi
Department Of Physics Faculty Of Science Science University Of Tokyo
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Urai Teruo
Riken (the Institute Of Physical And Chemical Research)
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YAGI Eiichi
RIKEN (The Institute of Physical and Chemical Research), Nishina Centre
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OGIWARA Kiyoshi
RIKEN (The Institute of Physical and Chemical Research), Nishina Centre
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Ogiwara Kiyoshi
Riken (the Institute Of Physical And Chemical Research) Nishina Centre
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Sugawara Takamasa
Institute For Materials Research (imr) Tohoku University
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Ogiwara Kiyoshi
Riken (the Institute Of Physical And Chemical Research)
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SHISHIDO Toetsu
Institute for Materials Research, Tohoku University
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Shishido Toetsu
Institute for Materials Reseach, Tohoku University, 2-1-1 Katahira-cho, Aoba-ku, Sendai 980-8577, Japan
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KOIKE Shigetoshi
Department of Physics II, Faculty of Science, Tokyo University of Science
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