Výsledky vyhledávání - "N. Lorenzelli"

Microstructural modifications induced by swift ions in the NiTi intermetallic compound

Autor: G. Jaskierowicz, A. Barbu, A. Hardouin Duparc, N. Lorenzelli, A. Dunlop

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 145:354-372

The conditions for track formation by irradiation with swift ions, in the shape memory NiTi metallic compound are studied. We observe that tracks are only induced in the monoclinic structure but not in the cubic one and only when the linear rate of e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29972a6f603670c2679d22aa8817d39e
https://doi.org/10.1016/s0168-583x(98)00408-x

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Structural modifications induced by electronic energy loss in Ni3B irradiated with GeV heavy ions

Autor: A. Dunlop, N. Lorenzelli, D. Lesueur, Lionel Thomé, Alain Audouard

Publikováno v: European Physical Journal: Applied Physics
European Physical Journal: Applied Physics, EDP Sciences, 1998, 3, pp.149-158. ⟨10.1051/epjap:1998217⟩

Crystalline Ni 3 B samples have been irradiated with GeV heavy ions (from 16 O to 238 U) at low temperature in order to study the damage induced in this compound by ion electronic energy loss. Electrical resistance measurements were performed in situ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f60c57895514efbcf75fd80c156cd57
https://doi.org/10.1051/epjap:1998217

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Experimental study and modelling of copper precipitation under electron irradiation in dilute FeCu binary alloys

Autor: N. Lorenzelli, Marie Helene Mathon, F. Dunstetter, C.H. de Novion, A. Barbu, F. Maury

Publikováno v: Journal of Nuclear Materials. 245:224-237

In order to study the effect of the supersaturation of freely migrating defects on the precipitation of copper in high residual copper pressure vessel steels under neutron irradiation, FeCu (1.34, 0.30 and 0.11 at.% Cu) model alloys were irradiated b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::527daedf3aa12666dd2abfcda836f208
https://doi.org/10.1016/s0022-3115(97)00010-x

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Evidence for atomic mixing induced in metallic bilayers by electronic energy deposition

Autor: J. Corno, F. Dunstetter, A. Dunlop, B. Pardo, Alain Menelle, Christian Colliex, A. Braslau, Lionel Thomé, N. Lorenzelli, R. Leguay, Jean-Luc Rouvière, F. Bridou, J. Chevallier

Publikováno v: Nanometric Phenomena Induced By Laser, Ion and Cluster Beams E-Mrs '96 Spring Meeting Symposium K
Nanometric Phenomena Induced By Laser, Ion and Cluster Beams E-Mrs '96 Spring Meeting Symposium K, 1997, Strasbourg, France. pp.481-502

High levels of energy deposition by electronic excitations can induce damage creation in some bulk metallic targets as soon as the rate of energy deposition in electronic excitation is higher than a few 10 keV/nm. The present study is aimed at determ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e80650b2b3e442795bc7dfdf88bb95be
https://doi.org/10.1016/s0168-583x(96)00756-2

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Atomic mixing induced in metallic bilayers by high electronic excitations

Autor: B. Pardo, F. Dunstetter, A. Braslau, R. Leguay, A. Dunlop, Alain Menelle, F. Bridou, Christian Colliex, J. Corno, Jean-Luc Rouvière, J. Chevallier, N. Lorenzelli

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 106:28-33

It has been recently established that high levels of energy deposition in electronic excitations can induce damage creation in a few metallic targets as soon as the linear rate of energy deposition in electronic excitation is of the order of a few 10

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f395053c0daba5c4d39b9209adee43b
https://doi.org/10.1016/0168-583x(95)00672-9

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Copper precipitation in FeCu, FeCuMn, and FeCuNi dilute alloys followed by X-ray absorption spectroscopy

Autor: Francis Maury, M.H. Mathon, N. Lorenzelli, C H de Novion, P. Lagarde

Publikováno v: Journal of Physics: Condensed Matter. 6:569-588

Samples of FeCu, FeCuMn, FeCuNi, and FeCuCr alloys containing 1.5 wt% of each solute have been electron irradiated around 290 degrees C or thermally aged at 500 degrees C for various times. It is known that such treatments induce Cu precipitation; th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4417bf4dc8d9ad1d2308ff21c536303d
https://doi.org/10.1088/0953-8984/6/2/027

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SANS study of structural changes in irradiated FeCu dilute alloys

Autor: C.H. de Novion, N. Lorenzelli, Marie Helene Mathon, François Boué, F. Maury, F. Dunstetter

Publikováno v: Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1993, 03 (C8), pp.C8-279-C8-282. ⟨10.1051/jp4:1993854⟩

Copper-rich precipitates formed in iron based dilute alloys by irradiation or thermal ageing, have been investigated using small angle neutron scattering (SANS). In particular, FeCu1.5% has been studied after either 2.5 MeV electron irradiations at 3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::524bf4944b5beca18f3ae6d70effca22
https://doi.org/10.1051/jp4:1993854

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α→ω phase transformation induced in titanium during ion irradiations in the electronic slowing-down regime

Autor: N. Lorenzelli, A. Barbu, D. Lesueur, A. Dunlop, Hichem Dammak

Publikováno v: Philosophical Magazine Letters. 67:253-259

This letter shows that the displacive phase transformation from the h.c.p. α-phase to the hexagonal co-phase can be triggered in titanium targets in an unusual way during swift heavy ion irradiations. This unexpected result is a consequence of the h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15771d68364cea714b5e440d18f19c0a
https://doi.org/10.1080/09500839308240937

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