Literatura científica selecionada sobre o tema "Frittage à l'état solide"
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Artigos de revistas sobre o assunto "Frittage à l'état solide"
Groshans, J. A. "Sur la densité de quelques substances à l'état solide et à l'état de dissolution". Recueil des Travaux Chimiques des Pays-Bas 4, n.º 3 (6 de setembro de 2010): 74–77. http://dx.doi.org/10.1002/recl.18850040302.
Texto completo da fonteBernas, A., M. Bodard e I. Rossi. "Réactions Photochimiques de Quelques Monomères Irradiés A L'État Solide". Bulletin des Sociétés Chimiques Belges 71, n.º 11-12 (2 de setembro de 2010): 859–68. http://dx.doi.org/10.1002/bscb.19620711141.
Texto completo da fonteLippens, D., M. R. Friscourt, P. A. Rolland e Y. Crosnier. "Perspectives de forte puissance à l'état solide en ondes millimétriques". Revue de Physique Appliquée 22, n.º 11 (1987): 1433–50. http://dx.doi.org/10.1051/rphysap:0198700220110143300.
Texto completo da fonteBrouty, Catherine, Pierre Spinat, Marie-Claude Sichère e Annick Whuler. "Polymérisation à l'état solide du 4BCMU, 5,7 dodécadiyne 1,12 bis-(butoxycarbonylméthyluréthane)". Zeitschrift für Kristallographie 176, n.º 1-2 (janeiro de 1986): 13–28. http://dx.doi.org/10.1524/zkri.1986.176.1-2.13.
Texto completo da fonteKakou-Yao, R., A. Saba, N. Ebby, M. Pierrot e J. P. Aycard. "Tautomérie de la 4-(hydroxyphénylméthylène) isochroman-1,3 dione à l'état solide". Acta Crystallographica Section C Crystal Structure Communications 55, n.º 9 (15 de setembro de 1999): 1591–93. http://dx.doi.org/10.1107/s0108270199006782.
Texto completo da fonteDe Keyser, W. L. "Réactions à l'état solide dans le système ternaire O2Si, OCa, O3Al2". Bulletin des Sociétés Chimiques Belges 63, n.º 1-2 (1 de setembro de 2010): 40–58. http://dx.doi.org/10.1002/bscb.19540630102.
Texto completo da fonteRoux, Patrick Le. "L'État augustéen servi par la géographie". Annales. Histoire, Sciences Sociales 45, n.º 2 (abril de 1990): 423–32. http://dx.doi.org/10.3406/ahess.1990.278844.
Texto completo da fonteDe Keyser, W. L. "Contribution à l'étude des réactions à l'état solide entre OCa, O3Fe2, O3Al2". Bulletin des Sociétés Chimiques Belges 64, n.º 7-8 (1 de setembro de 2010): 395–408. http://dx.doi.org/10.1002/bscb.19550640709.
Texto completo da fonteReyes-Melo, Edgar, Juan Martinez-Vega, Carlos Guerrero-Salazar e Ublado Ortiz-Méndez. "Modélisation de la viscoélasticité des polymères à l'état solide. Application du calcul fractionnaire". Revue des composites et des matériaux avancés 12, n.º 2 (23 de agosto de 2002): 337–59. http://dx.doi.org/10.3166/rcma.12.337-359.
Texto completo da fonteDay, Peter. "Structures et propriétés physiques de quelques complexes de coordination organisés à l'état solide". Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 2, n.º 14 (dezembro de 1999): 675–84. http://dx.doi.org/10.1016/s1387-1609(00)88460-1.
Texto completo da fonteTeses / dissertações sobre o assunto "Frittage à l'état solide"
Martin, Sylvain. "Contribution à la modélisation du frittage en phase solide". Thesis, Compiègne, 2014. http://www.theses.fr/2014COMP2144/document.
Texto completo da fonteThis thesis deals with the simulation of the sintering of nuclear fuel on a pellet scale. The goal is to develop numerical tools which can contribute to a better understandingof the physical phenomena involved in the sintering process. Hence, a multi scale approach is proposed. First of all, a Discrete Element model is introduced. It aims at modeling the motion of particles on a Representative Elementary Volume scale using an original Discrete Element Method. The latter is a Non Smooth Method called Contact Dynamics. Recently, there have been numerous papers about the simulation of sintering using Discrete Element Method. As far as we know, all these papers use smooth methods. Different studies show that the results match well experimental data. However, some limits come from the fact that smooth methods use an explicit scheme which needsvery small time steps. In order to obtain an acceptable time step, the mass of particles have to be dramatically increased. The Non Smooth Contact Dynamics uses an implicit scheme, thus time steps can be much larger without scaling up the mass of particles. The comparison between smooth and non smooth approaches shows thatour method leads to a more realistic representation of rearrangement. An experimental validation using synchrotron X-Ray microtomography is then presented, followedby a parametric study on the sintering of bimodal powders that aims at showing the capacity of this model.The second part presents a mechanical model on the sub-Granular scale, using a Finite Element method. This targets a better understanding of the behavior of twograins in contact. The model is currently being developped but the first results already show that some parameters like the shape of the surface of the neck are very sensitive.In the future, the Non smooth Contact Dynamics model of sintering may be improvedusing the results obtained by the sub-Granular scale mechanical model
Deplancke, Tiana. "Approche des mécanismes de frittage du UHMWPE : étude du comportement mécanique à l'état solide et à l'état fondu". Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-01018639.
Texto completo da fonteCumbunga, Judice. "Modeling and optimization of the thermomechanical behavior of metal partsobtained by sintering : Numerical and experimental approach". Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCA006.
Texto completo da fonteThe pressureless solid-state sintering process is a thermal treatment applied to improve or adjust material properties according to its field of application, given its ability to handle parts with complex geometries, high dimensional accuracy, small dimensions and suitability for soft and hard materials. However, modeling this type of process proves to be a difficult task, as an appropriate model needs to take into account various aspects, namely the multi-scale and multi-physics character of the problem, the high non-linearity of the material, the complexity of the geometries and, last but not least, the type of boundary conditions. From an industrial point of view, the appropriate heat treatment parameters are mainly obtained by trial and error. Numerical simulation makes it possible to reduce the cost of these tests and to provide more useful predictions or recommendations for actual production, than sintering tests themselves. Numerous research projects have been devoted to the development of mathematical and numerical models with approaches adapted to different levels or scales, such as the small scale (atomic level), the meso-scale (particle, grain and pore level), and the continuum scale (component level). The ability to predict the evolution of microstructure has put the mesoscopic model (at particle, grain and pore level) ahead of the others.In research terms, the question posed would therefore be "Given a untreated part obtained by MExAM, how can we numerically simulate the evolution of the microstructure (from an initial microstructural state) to control changes in thermomechanical properties during the solid-state sintering process ?"A robust computational model, based on a multiphysics and multi-scale approach, has been developed, tested and validated. It enables us to predict the evolution of the material's microstructure, thermal and mechanical properties. The model is based on the finite element method, and progressively takes into account the multiphysical couplings (thermal, mechanical and microstructure) that influence the material's behavior. Special considerations have been given to the integration of non-linear phenomena. The results of the various simulations have shown that the model developed is capable of predicting the behavior of the sintering process with correct accuracy. The special case of material behavior for MExAM was presented, as well as how to use the model to optimize its thermomechanical properties. Optimization was achieved by coupling the results of the various simulations with the Taguchi method. It should be noted that the results obtained from the analysis of material properties confirm the successful application of the model, both in predicting the microstructural and thermomechanical behavior of the material, and in optimizing its properties
Cordeiro, Cavalcanti Fabiano. "Caractérisation thermique de produits de l'état liquide à l'état solide". Lyon, INSA, 2006. http://theses.insa-lyon.fr/publication/2006ISAL0006/these.pdf.
Texto completo da fonteThe aim of this work is to propose a new experimental set-up that allows the thermal characterization of an industrial product (water, paraffin and n-hexadecane) undergoing phase change, i. E. Solidification/fusion. The considered properties are the thermal conductivities and heat capacities in the liquid and solid states, the phase change temperature and the latent heat. These properties are identified simultaneously by using Levenberg-Marquardt's method. Transient measurements of temperature at the extremities of the sample are used to solve the parameter estimation problem. A sensitivity coefficient analysis is realized and we use this study to present the optimal methodology of identification
Blidi, Abdelkader. "Frittage et réactivité des solides : réexamen des modèles cinétiques de l'étape initiale du frittage et des lois de variation isotherme de surface". Dijon, 1988. http://www.theses.fr/1988DIJOS015.
Texto completo da fonteChapelier, Alhan. "Modifications radioinduites dans les protéines à l'état solide". Paris 11, 2001. http://www.theses.fr/2001PA112351.
Texto completo da fonteIn this study four proteins were irradiated in the solid state at ambient temperature. Thioredoxine, lysozyme and a-lactalbumine were irradiated in the lyophilised state, human insulin was irradiated in the hexameric crystalline state. For all proteins and whatever the irradiation atmosphere is, irradiation seems to lead to only small changes. For doses lower than 5 kGy, all methods lead to the same conclusion : the percent of degradation is lower than 5 %. Irradiation affect all levels of organisation. As for primary structure, we did not detect any sequence or residue that would be specially sensitive. We have evidences for oxidative degradation pathway, specially on aromatic residues and this conclusion seems general. As for the secondary structure, insulin appears more sensitive than other proteins. Two different kinds of degradation appear, since we get more compact and more released proteins. .
Bowen, Martin. "Transport tunnel polarisé en spin à l'état solide". Paris 11, 2003. https://tel.archives-ouvertes.fr/tel-00003921v5.
Texto completo da fonteThis experimental Thesis investigates spin-polarized solid state tunneling between two ferromagnetic layers separated by an ultrathin insulating barrier, with an aim to bridge the gap between theory, which is based on ideal systems, and experiments dominated by junctions with amorphous barriers. The nearly total tunneling spin polarization of La(0. 7)Sr(0. 3)MnO3, when integrated into partially or fully epitaxial magnetic tunnel junctions, offers insight into the relationship between an insulating material's electronic structure and tunneling magnetotransport. In addition to transport experiments through epitaxial SrTiO3, Ce(0. 69)La(0. 31)O(l. 845), TiO2, MgO, and amorphous Al2O3, barriers, we have performed XMCD experiments on Al2O3 and MgO barriers to probe the theoretical underpinnings of our transport results. The half-metallic nature of La(0. 7)Sr(0. 3)MnO3 is then utilized in La(0. 7)Sr(0. 3)MnO3/SrTiO3/La(0. 7)Sr(0. 3)MnO3 and La(0. 7)Sr(0. 3)MnO3/SrTiO3/Co junctions to quantitatively confirm the spectroscopic nature of spin-dependent solid state tunneling between ferromagnetic electrodes. These bias-dependent studies underscore the influence of interfacial spin wave generation on the ferromagnetic order of the manganate/insulator interface near its Curie point. Finally, we utilize electromigration to modify both the density of states and the potential profile of the interfaces. We show how harnessing this effect may lead to a device with bistable magnetotransport properties; and we examine within the Fowler-Nordheim tunneling regime the incidence of such junction modifications on the formation of quantized energy states within the barrier, and the evolution of interlayer exchange coupling between the ferromagnetic electrodes
Caron, Vincent. "Mécanosynthèse et vitrification à l'état solide d'alliages moléculaires". Lille 1, 2006. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2006/50376-2006-Caron.pdf.
Texto completo da fontePopa, Ana Maria. "Frittage en phase solide de composites : cas de W-Cu". Grenoble INPG, 2001. http://www.theses.fr/2001INPG0078.
Texto completo da fonteHarfouche, Lina. "Criblage de l'état solide chiral et diagrammes de phases". Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR007.
Texto completo da fonteMany active pharmaceutical ingredients are chiral compounds. The two enantiomers of the corresponding molecules exhibit identical chemical and physical properties, but the desired biological activity is often provided by only one enantiomer. The strict regulations forced the pharmaceutical industry to develop new ways to produce pure enantiomers. Among separation methods, Preferential Crystallization (PC), is a technique with relatively high productivity and low cost. It consists of the out-of-equilibrium alternative crystallization of both enantiomers. It is thought that the application of PC is only possible when the enantiomers crystallize as a conglomerate, i.e. a physical mixture of homochiral particles. Yet, only ca 5-10% of the racemic species crystallize as a conglomerate, which strongly limits the applicability of PC. The work investigates how to perform PC in the remaining 90-95% of cases, for enantiomers crystallizing as racemic compounds, i.e. a 1:1 stoichiometric compound made with both enantiomers. Following an adequate screening procedure based on physico chemical and molecular considerations, one racemic chiral molecule was selected as model compound, namely “proxyphylline” (PXL). After the construction of the binary phase diagram between the enantiomer of PXL reveals a rich polymorphism (double polymorphism for enantiomer and racemic), PXL has been resolved by two approaches: (a) via an unforeseen metastable conglomerate, by inhibiting the spontaneous crystallization and growth of the undesired forms and by achieving a wide metastable zone width due to the selection of a suitable solvent. The obtained results extend the applicability of PC to the racemic forming system with specific thermodynamic (melting temperature) and kinetic (wide metastability) characteristics. (b) via a stable monohydrated conglomerate prepared by cocrystallization with salicylic acid. It was resolved by PC from a water/ethanol mixture with high productivity. This may be the first report of PC applied to such a cocrystal system
Livros sobre o assunto "Frittage à l'état solide"
Chalmers, Bruce. Structure et propriétés des solides: Introduction à la science des matériaux. Paris: Masson, 1987.
Encontre o texto completo da fonteCazaux, Jacques. Initiation à la physique du solide: Exercices commentés. 2a ed. Paris: Masson, 1989.
Encontre o texto completo da fonteRogalski, Mircea S. Solid state physics. Amsterdam, The Netherlands: Gordon and Breach Science Publishers, 2000.
Encontre o texto completo da fonteTrinquier, Alain. La liaison chimique, le solide cristallisé, chimie minérale: Cours de chimie pour la classe de mathématiques spéciales P et P'. Paris: Edition Marketing, 1989.
Encontre o texto completo da fonteC, Jacquot, e Association des enseignants de pharmacologie., eds. Pharmacologie fondamentale: Support de l'enseignement de la pharmacologie générale. Paris: Ellipses, 1989.
Encontre o texto completo da fonteFan, H. Y. Elements of solid state physics. New York: Wiley, 1987.
Encontre o texto completo da fonteMooser, Emanuel. Introduction a la physique des solides. Lausanne: Presses Polytechniques et Universitaires Romandes, 1993.
Encontre o texto completo da fonteMyers, H. P. Introductory solid state physics. London: Taylor & Francis, 1990.
Encontre o texto completo da fonteMyers, H. P. Introductory solid state physics. 2a ed. London: Taylor & Francis, 1997.
Encontre o texto completo da fonteHarrison, Walter A. Electronic structure and the properties of solids: The physicsof the chemical bond. New York: Dover Publications, 1989.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Frittage à l'état solide"
"5 Thermodynamique de l'état solide". In La chimie des solides, 199–266. EDP Sciences, 2004. http://dx.doi.org/10.1051/978-2-7598-0173-2.c007.
Texto completo da fonte