Articles: | |
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Physical Review B - Condensed Matter and Materials Physics,
84(6)
2011
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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Physical Review B - Condensed Matter and Materials Physics,
83(18)
2011
Equipe: Département P2M : Nanomagnétisme et Electronique de Spin |
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Journal of Physics D-Applied Physics,
44(17):174022
2011
Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |
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JOURNAL OF PHYSICS D-APPLIED PHYSICS,
44(17)
2011
Resume: The origin of organization of nanostructured silica coatings deposited on stainless steel substrates by remote microplasma at atmospheric pressure is investigated. We show by resorting to thermal camera measurements coupled with modelling that deposition, limited to a few seconds in time, occurs at low temperature (similar to below 420 K) although the gas temperature may reach 1400 K. Raman analyses of deposited films with thicknesses below 1 mu m show the presence of oxidized silicon bonded to the metallic surface. The origin of nanodots is explained as follows. Close to the microplasma nozzle, the concentration of oxidizing species and/or the temperature being high enough, a silica thin film is obtained, leading to ceramic-metallic oxide interface that leads to a Volmer-Weber growth mode and to the synthesis of 3D structures over long treatment times. Far from the nozzle, the reactivity decreasing, thin films get a plasma-polymer like behaviour which leads to a Franck-Van der Merwe growth mode and films with a higher density. Other nanostructures, made of hexagonal cells, are observed but remain unexplained. Equipe: Centre de Compétences : ERMIONE informatique et calcul |
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Thin Walled Structures,
accepted (TWST-D-10-00263R2)
2011
Equipe: Département CP2S : Matériaux pour le Génie Civil |
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Advanced Materials Research,
214:202
2011
Equipe: Département CP2S : Matériaux à propriétés thermoélectriques |
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Acta Crystallographica Section E,
accepté
2011
Equipe: Département CP2S : Surface et Interface, réactivité chimique des matériaux |
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Materials and Structures,
44(7):1205-1217
2011
Equipe: Département CP2S : Matériaux pour le Génie Civil |
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Journal of Applied Physics,
110(11)
2011
Equipe: Département CP2S : Chimie et électrochimie des matériaux |
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Physical Review E,
84:056405 (9 pages)
2011
Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS |