Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni2Si intermetallic phases
Identifieur interne : 001133 ( Main/Exploration ); précédent : 001132; suivant : 001134Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni2Si intermetallic phases
Auteurs : A. Jennane [France] ; J. Bernardini [France] ; P. Moser [France] ; G. MoyaSource :
- Journal of alloys and compounds
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Irradiation.
English descriptors
- KwdEn :
Abstract
γ-NiSb and δ-Ni2Si phases were studied using positron annihilation spectroscopy after electron irradiation at 20 K (E=3 MeV; dose, about 5 × 1018 e- cm-2). Isochronal spectra of the πm positron average lifetime and of the Doppler broadening parameter R showed the same evolution for both compounds studied. Recombination of mobile interstitials with vacancies for NiSb occurred between 100 and 250 K although nickel vacancy migration occurred at approximately 400 K and formed dislocation loops
Affiliations:
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Le document en format XML
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Si intermetallic phases</title>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni<sub>2</sub>
Si intermetallic phases</title>
<author><name sortKey="Jennane, A" sort="Jennane, A" uniqKey="Jennane A" first="A." last="Jennane">A. Jennane</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Antimony Nickel Alloys</term>
<term>Dislocation</term>
<term>Electron beam</term>
<term>Intermetallic compound</term>
<term>Interstitial</term>
<term>Irradiation</term>
<term>Irradiation defect</term>
<term>Nickel Silicon Alloys</term>
<term>Positron annihilation</term>
<term>Vacancy</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Défaut irradiation</term>
<term>Irradiation</term>
<term>Annihilation positon</term>
<term>Composé intermétallique</term>
<term>Antimoine Nickel Alliage</term>
<term>Interstitiel</term>
<term>Lacune</term>
<term>Dislocation</term>
<term>Nickel Silicium Alliage</term>
<term>Faisceau électronique</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Irradiation</term>
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<front><div type="abstract" xml:lang="en">γ-NiSb and δ-Ni<sub>2</sub>
Si phases were studied using positron annihilation spectroscopy after electron irradiation at 20 K (E=3 MeV; dose, about 5 × 10<sup>18</sup>
e<sup>-</sup>
cm<sup>-2</sup>
). Isochronal spectra of the π<sub>m</sub>
positron average lifetime and of the Doppler broadening parameter R showed the same evolution for both compounds studied. Recombination of mobile interstitials with vacancies for NiSb occurred between 100 and 250 K although nickel vacancy migration occurred at approximately 400 K and formed dislocation loops</div>
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<tree><noCountry><name sortKey="Moya, G" sort="Moya, G" uniqKey="Moya G" first="G." last="Moya">G. Moya</name>
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<country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Jennane, A" sort="Jennane, A" uniqKey="Jennane A" first="A." last="Jennane">A. Jennane</name>
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<name sortKey="Moser, P" sort="Moser, P" uniqKey="Moser P" first="P." last="Moser">P. Moser</name>
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