抄録
The lattice location of B atoms doped in Ll2-type Ni0.75Al0.15Ti0.10 intermetallic compounds was investigated by the ion channeling method with a 720 keV proton beam. Backscattered protons, α-particles generated by the 11B(p, α)8Be nuclear reaction and proton-induced X-rays were measured under channeling conditions. The channeling angular profiles for the α-particle yields exhibited a dip for the 〈100〉 and 〈111〉 channels, while a central peak for the 〈110〉 channel was observed, indicating octahedral (O) site occupancy of B atoms. There are two types of O-sites in a Ni2Al-type compound: body-centered positions surrounded by six Ni atoms (site I), and edge-centered positions surrounded by four Ni atoms and two Al atoms (site II). For the 〈111〉 channel, the half-width of the channeling dip for the a yields agreed well to that for the Al Kα X-rays rather than that for the Ni Kα X-rays. Hence, it is concluded that most of the B atoms occupy O-sites of type-I (site-I).
| 元の言語 | English |
|---|---|
| ページ（範囲） | 471-475 |
| ページ数 | 5 |
| ジャーナル | Nuclear Inst. and Methods in Physics Research, B |
| 巻 | 45 |
| 発行部数 | 1-4 |
| DOI | |
| 出版物ステータス | Published - 1990 1 2 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Instrumentation
- Surfaces and Interfaces
これを引用
Lattice location of B atoms in Ni0.75Al0.15Ti0.10 intermetallic compounds as observed by the channeling method. / Tanaka, Koki; Yagi, Eiichi; Masahashi, Naoya; Mizuhara, Yoji; Tatsumi, Kohei; Takahari, Tomoo.
：: Nuclear Inst. and Methods in Physics Research, B, 巻 45, 番号 1-4, 02.01.1990, p. 471-475.研究成果: Article
}
TY - JOUR
T1 - Lattice location of B atoms in Ni0.75Al0.15Ti0.10 intermetallic compounds as observed by the channeling method
AU - Tanaka, Koki
AU - Yagi, Eiichi
AU - Masahashi, Naoya
AU - Mizuhara, Yoji
AU - Tatsumi, Kohei
AU - Takahari, Tomoo
PY - 1990/1/2
Y1 - 1990/1/2
N2 - The lattice location of B atoms doped in Ll2-type Ni0.75Al0.15Ti0.10 intermetallic compounds was investigated by the ion channeling method with a 720 keV proton beam. Backscattered protons, α-particles generated by the 11B(p, α)8Be nuclear reaction and proton-induced X-rays were measured under channeling conditions. The channeling angular profiles for the α-particle yields exhibited a dip for the 〈100〉 and 〈111〉 channels, while a central peak for the 〈110〉 channel was observed, indicating octahedral (O) site occupancy of B atoms. There are two types of O-sites in a Ni2Al-type compound: body-centered positions surrounded by six Ni atoms (site I), and edge-centered positions surrounded by four Ni atoms and two Al atoms (site II). For the 〈111〉 channel, the half-width of the channeling dip for the a yields agreed well to that for the Al Kα X-rays rather than that for the Ni Kα X-rays. Hence, it is concluded that most of the B atoms occupy O-sites of type-I (site-I).
AB - The lattice location of B atoms doped in Ll2-type Ni0.75Al0.15Ti0.10 intermetallic compounds was investigated by the ion channeling method with a 720 keV proton beam. Backscattered protons, α-particles generated by the 11B(p, α)8Be nuclear reaction and proton-induced X-rays were measured under channeling conditions. The channeling angular profiles for the α-particle yields exhibited a dip for the 〈100〉 and 〈111〉 channels, while a central peak for the 〈110〉 channel was observed, indicating octahedral (O) site occupancy of B atoms. There are two types of O-sites in a Ni2Al-type compound: body-centered positions surrounded by six Ni atoms (site I), and edge-centered positions surrounded by four Ni atoms and two Al atoms (site II). For the 〈111〉 channel, the half-width of the channeling dip for the a yields agreed well to that for the Al Kα X-rays rather than that for the Ni Kα X-rays. Hence, it is concluded that most of the B atoms occupy O-sites of type-I (site-I).
UR - http://www.scopus.com/inward/record.url?scp=0025208858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025208858&partnerID=8YFLogxK
U2 - 10.1016/0168-583X(90)90878-X
DO - 10.1016/0168-583X(90)90878-X
M3 - Article
VL - 45
SP - 471
EP - 475
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
IS - 1-4
ER -