NickelMaghrebV1, Main, Exploration, bibRecord, 001133

Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni2Si intermetallic phases

Identifieur interne : 001133 ( Main/Exploration ); précédent : 001132; suivant : 001134

Characterization 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. Moya

Source :

Journal of alloys and compounds

RBID : Pascal:93-0091114

Descripteurs français

Pascal (Inist)
- Défaut irradiation, Irradiation, Annihilation positon, Composé intermétallique, Antimoine Nickel Alliage, Interstitiel, Lacune, Dislocation, Nickel Silicium Alliage, Faisceau électronique.
Wicri :
- topic : Irradiation.

English descriptors

KwdEn :
- Antimony Nickel Alloys, Dislocation, Electron beam, Intermetallic compound, Interstitial, Irradiation, Irradiation defect, Nickel Silicon Alloys, Positron annihilation, Vacancy.

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 π_m 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:

Links toward previous steps (curation, corpus...)

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to stream Main, to step Curation: 001133

Le document en format XML

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Si intermetallic phases</title>
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Si intermetallic phases</title>
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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>
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<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>
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<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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<name sortKey="Bernardini, J" sort="Bernardini, J" uniqKey="Bernardini J" first="J." last="Bernardini">J. Bernardini</name>
<name sortKey="Moser, P" sort="Moser, P" uniqKey="Moser P" first="P." last="Moser">P. Moser</name>
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Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni2Si intermetallic phases

Characterization of irradiation defects using positron annihilation spectroscopy in γ-NiSb and δ-Ni2Si intermetallic phases

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri