linkedintwitter
Annuaire  |  Flux RSS  |  Espace presse  |  Wiki IJL  |  Webmail  |  Videos  |    Photos   Articles scientifiques  Articles scientifiques 

Publications: Articles

Annees:  
Toutes :: 2002, ... , 2012, 2013, 2014, 2016
Auteurs:  
Tous :: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z 
Tous :: A. Aboulaich, ... , Ammar, Anders, Andersson, ... , Azzouz 
Preferences: 
References par page: Mots clefs Voir les resumes
References

Articles:

Hamdan, A., Audinot, J.-N., Migot-Choux, S., Noel, C., Kosior, F., Henrion, G. and Belmonte, T.
Advanced Engineering Materials, 15:885-892
2013

Resume: Discharges in heptane in pin-to-plate configuration are produced between a platinum wire and a (100)-oriented silicon wafer coated by a carbon nanotube (CNT) carpet. This carpet is used to simulate the behavior of a nanostructured surface in electro-discharge machining (EDM) where small protrusions on the surface could play a similar role. CNTs behave like simple electrical conductors between the discharge and the silicon wafer. They act as if they would focus the current on smaller areas. The average diameter of impacts is about five times smaller if the silicon wafer is coated by a CNT carpet. The underlying silicon surface is heated by the plasma and melts, forming a central spot surrounded by a serrated trailing edge. The current density being about one order of magnitude larger when a CNT carpet is present, the induced magnetic field stirs the molten silicon, creating serrations all around the impact. Hot nanoparticles of carbon coming from the plasma fall and roll randomly on the silicon surface where they create wavy micro-channels. Nanowires that are detached from the surface are covered by nanoparticles of platinum in the plasma and embedded within an amorphous carbon layer deposited on the nanotube. However, these effects can only be observed if the current density is high enough (>approximate to 10A mu m(-2) depending on the material) like in micro-EDM but not in nano-EDM.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Hamdan, A., Audinot, J.-N., Noel, C., Kosior, F., Henrion, G. and Belmonte, T.
Applied Surface Science, 274:378-391
2013

Resume: Interaction of discharges in heptane with magnetron-sputtered thin films made of aluminum, copper or iron is studied in a pin-to-plate configuration. The behavior of discharges on thin films can be used to better understand the interaction of discharges with given surfaces and it might also improve the reproducibility of the impacts in order to better control their shape. Single layers and bilayers of metals are characterized after impact by SEM, AFM, micro-EDX and nano-SIMS analyses. Discharges last typically for a few hundreds of nanoseconds and dissipated energies range between 1 and 100 mJ. We show that at low impact energy, copper and aluminum are heated and stretched by surface stress. At intermediate energy, melting occurs, leading to the synthesis of external beads by Marangoni's convection. At high energy, the shape of the impact is defined by the pressure release when the discharge stops. When iron is deposited onto silicon, dewetting is an important mechanism. The columnar structure of the deposit may have two distinct roles. On the one hand, gases trapped in intercolumnar boundaries can produce tiny holes. On the other hand, the shock wave can abrade the outermost and less cohesive part of the film if it is made of columns separated by large porosities. (C) 2013 Elsevier B.V. All rights reserved.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Hamdan, A., Audinot, J. -N., Noel, C., Kosior, F., Henrion, G. and Belmonte, T.
APPLIED SURFACE SCIENCE, 274:378-391 Belmonte, T (Reprint Author), Univ Lorraine, Inst Jean Lamour, UMR CNRS 7198, F-54011 Nancy, France. Hamdan, A.; Noel, C.; Kosior, F.; Henrion, G.; Belmonte, T., Univ Lorraine, Inst Jean Lamour, UMR CNRS 7198, F-54011 Nancy, France. Audinot, J. -N., Ctr Rech Publ Gabriel Lippmann, SAM Dept, L-4422 Belvaux, Luxembourg. Noel, C.; Kosior, F.; Henrion, G.; Belmonte, T., CNRS, Inst Jean Lamour, UMR CNRS 7198, F-54011 Nancy, France.
2013
ISSN: 0169-4332

Mots clefs: Microplasma; Plasma in liquids; Plasma-surface interaction; Thin films

Resume: Interaction of discharges in heptane with magnetron-sputtered thin films made of aluminum, copper or iron is studied in a pin-to-plate configuration. The behavior of discharges on thin films can be used to better understand the interaction of discharges with given surfaces and it might also improve the reproducibility of the impacts in order to better control their shape. Single layers and bilayers of metals are characterized after impact by SEM, AFM, micro-EDX and nano-SIMS analyses. Discharges last typically for a few hundreds of nanoseconds and dissipated energies range between 1 and 100 mJ. We show that at low impact energy, copper and aluminum are heated and stretched by surface stress. At intermediate energy, melting occurs, leading to the synthesis of external beads by Marangoni's convection. At high energy, the shape of the impact is defined by the pressure release when the discharge stops. When iron is deposited onto silicon, dewetting is an important mechanism. The columnar structure of the deposit may have two distinct roles. On the one hand, gases trapped in intercolumnar boundaries can produce tiny holes. On the other hand, the shock wave can abrade the outermost and less cohesive part of the film if it is made of columns separated by large porosities. (C) 2013 Elsevier B.V. All rights reserved.

Equipe: Centre de Compétences : ERMIONE informatique et calcul

Hamdan, A., Audinot, J.-N., Noel, C., Kosior, F., Henrion, G. and Belmonte, T.
Applied Surface Science, 274:378-391
2013

Resume: Interaction of discharges in heptane with magnetron-sputtered thin films made of aluminum, copper or iron is studied in a pin-to-plate configuration. The behavior of discharges on thin films can be used to better understand the interaction of discharges with given surfaces and it might also improve the reproducibility of the impacts in order to better control their shape. Single layers and bilayers of metals are characterized after impact by SEM, AFM, micro-EDX and nano-SIMS analyses. Discharges last typically for a few hundreds of nanoseconds and dissipated energies range between 1 and 100 mJ. We show that at low impact energy, copper and aluminum are heated and stretched by surface stress. At intermediate energy, melting occurs, leading to the synthesis of external beads by Marangoniâ??s convection. At high energy, the shape of the impact is defined by the pressure release when the discharge stops. When iron is deposited onto silicon, dewetting is an important mechanism. The columnar structure of the deposit may have two distinct roles. On the one hand, gases trapped in intercolumnar boundaries can produce tiny holes. On the other hand, the shock wave can abrade the outermost and less cohesive part of the film if it is made of columns separated by large porosities.

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Aeby-Gautier, E., Settefrati, A., Bruneseaux, F., Appolaire, B., Denand, B., Dehmas, M., Geandier, G. and Boulet, P.
JOURNAL OF ALLOYS AND COMPOUNDS, 577:S439-S443
2013
ISSN: 0925-8388

Equipe: Centre de Compétences : X-Gamma rayons X et spectroscopie

Aeby-Gautier, E., Settefrati, A., Bruneseaux, F., Appolaire, B., Denand, B., Dehmas, M., Geandier, G. and Boulet, P.
Journal of Alloys and Compounds, 5775:439-443
2013

Equipe: Département SI2M : Microstructures et Contraintes

Settefrati, A., Aeby-Gautier, E., Appolaire, B., Dehmas, M., Geandier, G. and Khelifat, G.
Materials Science Forum, 738-739:97-102
2013

Resume: proceedings Conférence ESOMAT 2012

Equipe: Département SI2M : Microstructures et Contraintes

Rajanikanth, A., Hauet, T., Montaigne, F., Mangin, S. and Andrieu, S.
Applied Physics Letters, 103(6)
2013

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

Rajanikanth, A., Hauet, T., Montaigne, F., Mangin, S. and Andrieu, S.
Applied Physics Letters, 103(6)
2013

Equipe: Centre de Compétences : MiNaLor micro et nanotechnologies

Ynineb, F., Hafdallah, A., Attaf, N., Aida, M.S., Bougdira, J. and Rinnert, H.
International Journal of Nanoparticles, 6:252-263
2013

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Page:  
Precedente | 1, 2, 3, 4, 5 | Suivante
Cette annee / Total:
47 / 339
Exporter au format:
BibTeX, XML