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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Journal of Nuclear M...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Journal of Nuclear Materials
Article . 1959 . Peer-reviewed
License: Elsevier TDM
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Etude des alliages aluminium-uranium application a la transformation a l'etat solide UAl3 → UAl4

Authors: René Boucher;

Etude des alliages aluminium-uranium application a la transformation a l'etat solide UAl3 → UAl4

Abstract

Resume La coalescence de l'eutectique UAl 4 + Al est etudiee micrographiquement pour 2 alliages a 10.8 et 25 % en poids d'uranium dans Al, recuits a 600° C, 500° C et 400° C pendant des temps variant de 1 2 heure a 600 heures. Un traitement de 10 heures a 600° C permet d'abaisser notablement la durete de l'alliage, la phase UAl 4 se rassemblant en nodules et rendant plus facile la realisation de combustible du type disperse. La cinetique de la transformation UAl 3 → UAl 4 a l'etat solide est observee micrographiquement. La phase UAl 3 est conservee par trempe dans l'huile a partir de 750° C puis l'alliage maintenu a 600° C pendant des temps differents pour obtenir UAl 4 . Dans un alliage a 40 % en poids d'U et 60 % en poids d'Al, la transformation complete de UAl 3 en UAl 4 est rapide (1 heure a 600° C). Dans un alliage a 35 % en poids d'U et 0.1 % en poids de Si, le temps de transformation est de 100 heures. Dans un alliage a 35 % en poids d'U et 0.6 % en poids de Si apres 1000 heures a 600° C la phase UAl 3 est conservee. Ainsi l'addition d'elements tel que le silicium en quantite relativement faible stabilise UAl 3 non seulement a temperature ordinaire mais egalement jusqu'a 600° C. Enfin on a cherche a verifier l'existence d'un domaine d'homogeneite du compose UAl 4 dont les limites generalement admises sont 64.2 a 66.3 % en poids d'U; le domain semble beaucoup plus etroit.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
25
Average
Top 10%
Average
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