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Letteratura scientifica selezionata sul tema "Métaux poreux"
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Articoli di riviste sul tema "Métaux poreux"
Chauveau, Guy E. J. "Les métaux et alliages poreux issus de la métallurgie des poudres et des techniques de frittage. Descriptions et applications". Matériaux & Techniques 75, n. 1-2 (1987): 25–26. http://dx.doi.org/10.1051/mattech/198775010025.
Testo completoMaurin, A. C., R. Fromental, D. Cantaloube e R. Caterini. "Étude de la colonisation par des ostéoblastes humains de métaux poreux à base de nitinol ou de tantale dans un modèle de culture cellulaire tridimensionnelle". Implantodontie 14, n. 2 (aprile 2005): 44–50. http://dx.doi.org/10.1016/j.implan.2005.05.003.
Testo completoGirard, J., P. Laffargue, J. Decoulx e H. Migaud. "Fiabilité d’une cupule métal-back vissée à revêtement poreux : intérêt et innocuité d’un dispositif anti-luxation". Revue de Chirurgie Orthopédique et Réparatrice de l'Appareil Moteur 91, n. 5 (settembre 2005): 432–38. http://dx.doi.org/10.1016/s0035-1040(05)84360-0.
Testo completoMékidèche, Thibaut, Xavier Armoiry, Pierre Sautet, Claude Dussart e Bruno Mandy. "Étude de l’impact économique des cônes en métal poreux dans les arthroplasties totales du genou". Annales Pharmaceutiques Françaises, maggio 2021. http://dx.doi.org/10.1016/j.pharma.2021.04.009.
Testo completoTesi sul tema "Métaux poreux"
Campesi, Renato. "Synthèse, caractérisation et étude des propriétés thermodynamiques d'hydrogénation de nanocomposites matériaux poreux / métaux-alliages". Phd thesis, Université Paris-Est, 2008. http://tel.archives-ouvertes.fr/tel-00461689.
Testo completoMadou, Komlanvi. "Contribution à l'étude des effets de forme des cavités en rupture ductile des métaux". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00833021.
Testo completoMadou, Komlanvi. "Contribution à l'étude des effets de forme des cavités en rupture ductile des métaux". Phd thesis, Paris 6, 2012. http://www.theses.fr/2012PA066245.
Testo completoDuctile fracture of materials occurs by nucleation, growth and coalescence of microvoids. The most classical model describing the voids growth in plastic porous materials is introduced by Gurson. This model was derived from limit-analysis of a hollow sphere subjected to conditions of homogeneous boundary strain rate. Gurson’s model was extended to spheroidal, both prolate and oblate voids by Gologanu et al. In this work, we further extend Gologanu et al’s model to general ellipsoidal voids. In a first step, the velocity field satisfying conditions of homogenous strain rate on all ellipsoids confocal with the void and the outer boundary, discovered by Leblond and Gologanu, is used in a limit-analysis of an ellipsoidal domain. A Gurson-like approximate yield function is obtained. In a second step, the preceding limit-analysis is improved: (i) For hydrostatic loadings, by performing micromechanical finite element computations in a number of significant cases; (ii) For deviatoric loadings, by directly using some general rigorous results for nonlinear composites. In a third step, the yield function proposed is validated versus a number of numerical computations of yield surfaces of hollow cells of various ellipsoidal shapes. In a fourth step, suitable evolution equations for the shape and orientation of the voids in plastic material are defined. The last step is devoted to the implementation of the Hill’s criterion in SYSTUS software and makes it possible to consider the extension of the model to plastic anisotropic materials
Thomas, Pascal. "Elaboration électrochimique, caractérisation et compréhension des mécanismes de formation des films d'oxyde d'aluminium nano-poreux organisés". Saint-Etienne, EMSE, 2008. http://www.theses.fr/2008EMSE0028.
Testo completoThe theoretical structure of highly ordered nanoporous alumina membranes is similar to a honey-comb. However, the ideal structure consisting of a regular cells network is obtained only for very specific anodizing parameters. Several models have been proposed, whereas they are not sufficient to explain entirely the formation of theses structures. In this study, we propose to complete the literature on the influence of various parameters which play a role on the structure of the highly ordered nanoporous alumina and to improve understanding of phenomena involved in the formation of these structures. In particular, we propose an original approach based on anions migration in the barrier layer which permits to explain why anodic oxidation of aluminium leads to ordered structures only for a restricted range of cell voltage which depends on the electrolyte used. Thus, this study brings a new point of view on the process of formation of highly ordered nanoporous alumina in terms of voltage
Etienne, Mathieu. "Approches analytique et électrochimique du comportement en solution de silices mésoporeuses organiquement modifiées". Nancy 1, 2001. http://www.theses.fr/2001NAN10192.
Testo completoLiu, Yu. "Elaboration et étude des propriétés mécaniques des mousses d'aluminium et des métaux poreux polymères composites". Troyes, 2007. http://www.theses.fr/2007TROY0007.
Testo completoThe objectives of this work consist to manufacture new metal porous polymeric composites (MPPC) with interpenetrated structure and to characterize their mechanical behaviors under statical and dynamic loading. Firstly, we developed a technique of infiltration under a negative pressure to manufacture the open cell aluminium foams and MPPC. The optic observations were carried out in multi-scale. The characterizations of materials were carried out under uniaxial compression. The influences of the structural parameters on the compressive behaviors were clarified by SEM observations during compression. The elastic module was compared with the analytical models. These results obtained are completely restructed between the boundaries proposed in the literature. Secondly, the behaviors of indentation were studied. The relations between the response of indentation and the size and the geometry of plunger tip were illustrated. The size and the shape of the densification zone were observed and modelled by analytical models and the finite element simulation. Finally, the behaviour of impact was studied. The influences of experimental conditions and structural parameters on the behaviors of impact were illuminated
Shen, Cheng. "Nouveau systèmes polymères pour la dépollution de l'eau : rétention des métaux et des bactéries". Bordeaux 1, 2007. http://www.theses.fr/2007BOR13386.
Testo completoMenard, Samuel. "Périphérie triac à base de silicum poreux". Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4022/document.
Testo completoThis PhD thesis deals with the development of a novel TRIAC periphery, exploiting the semi-insulating nature of porous silicon (PS). It is namely accessible to integrate P type PS wells through the doping profiles encountered in the TRIAC. Thus, a review of the P type PS electrical properties was achieved through dedicated samples. In this context, capacitance measurements and I-V plots were used to determine the evolution of the PS relative dielectric constant and its resistivity with the porosity. Higher the latter is, more insulating the PS is. By analyzing all the results, it was also possible to clarify the carrier transport mechanisms in the PS. Some TRIAC prototypes with a PS based junction termination were then designed, processed and studied. The stress coming from the PS formation and the PS masking were the main technological steps to solve. First solutions were proposed, nevertheless insufficient blocking performances were reached. Leakage currents higher than 10 mA were demonstrated while the bias voltage was only 100 V. The presence of fixed charges at the PS / Silicon interface and/or the geometry of the PS wells may explain these results. Finally, with the help of a macroscopic PS model, a more optimized structure was proposed
Bueno, Maïté. "Etude dynamique des processus de sorption-désorption du tributylétain sur un milieu poreux d'origine naturelle". Pau, 1999. http://www.theses.fr/1999PAUU3003.
Testo completoAnsanay-Alex, Salomé. "Mise au point d'un nouvel échantillonneur intégratif à base de solide naturel poreux". Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-01016693.
Testo completo