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Artykuły w czasopismach na temat "Diagramme de phases de l'or"
Guizani, Mohamed, Hmida Zamali i Mohamed Jemal. "Diagramme de phases LiNO3-KNO3". Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 1, nr 12 (grudzień 1998): 787–89. http://dx.doi.org/10.1016/s1251-8069(99)80047-4.
Pełny tekst źródłaBahari, Zahra, Jacques Rivet i Jérôme Dugué. "Diagramme de phases du système Ag2Te-In2Te3". Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 1, nr 7 (lipiec 1998): 411–15. http://dx.doi.org/10.1016/s1387-1609(98)80420-9.
Pełny tekst źródłaTouboul, Marcel, Paul Toledano, Corneille Idoura i Marie-Madeleine Bolze. "Diagramme de phases du système Tl2OMoO3". Journal of Solid State Chemistry 61, nr 3 (marzec 1986): 354–58. http://dx.doi.org/10.1016/0022-4596(86)90043-5.
Pełny tekst źródłaGaultier, J. P. "Etude de la repartition des cations interfoliaires dans les phlogopites alterees-(Na, Ca) et (Na, K)". Clay Minerals 20, nr 1 (marzec 1985): 1–14. http://dx.doi.org/10.1180/claymin.1985.020.1.01.
Pełny tekst źródłaPardo, M. P., M. Guittard, A. Chilouet i A. Tomas. "Diagramme de phases gallium-soufre et études structurales des phases solides". Journal of Solid State Chemistry 102, nr 2 (luty 1993): 423–33. http://dx.doi.org/10.1006/jssc.1993.1054.
Pełny tekst źródłaGervais, M., A. Douy, B. Dubois, J. P. Coutures i P. Odier. "Frittage de YBaCuO, implications du diagramme de phases". Revue de Physique Appliquée 24, nr 5 (1989): 495–99. http://dx.doi.org/10.1051/rphysap:01989002405049500.
Pełny tekst źródłaEcrepont, C., M. Guittard i J. Flahaut. "Systeme La2S3Bi2S3. Phases intermediaires diagramme de phase". Materials Research Bulletin 23, nr 1 (styczeń 1988): 37–42. http://dx.doi.org/10.1016/0025-5408(88)90222-x.
Pełny tekst źródłaFaudot, F., M. Harmelin, J. Bigot, S. Argouin i P. Gouerou. "Le diagramme de phases fer-neodyme (Fe-Nd)". Thermochimica Acta 147, nr 2 (lipiec 1989): 205–15. http://dx.doi.org/10.1016/0040-6031(89)85176-7.
Pełny tekst źródłaBélaïd-Drira, N., H. Zamali i M. Jemal. "Diagramme de phases du systeme binaire LiNO3-NaNO3". Journal of Thermal Analysis 46, nr 5 (maj 1996): 1449–58. http://dx.doi.org/10.1007/bf01979257.
Pełny tekst źródłaWignacourt, JP, M. Drache, P. Confiant i JC Boivin. "Nouvelles phases du système Bi2O3-BiPO4 I. Description du diagramme de phases". Journal de Chimie Physique 88 (1991): 1933–38. http://dx.doi.org/10.1051/jcp/1991881933.
Pełny tekst źródłaRozprawy doktorskie na temat "Diagramme de phases de l'or"
Richard, Pauline. "Exploration ab initio du diagramme de phases de l'or à haute pression et haute température". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF040.
Pełny tekst źródłaThis thesis is dedicated to exploring the phase diagram of gold under high pressure and high temperature. Calculating the free energy is fundamental for comparing the relative stability of phases under specific thermodynamic conditions. However, this quantity explicitly depends on the partition function, making it challenging to calculate in atomistic simulations. It is often decomposed into cold and thermal contributions. Among these contributions, the lattice dynamics, or phonons, play a crucial role. The temperatures explored induce indeed anharmonic effects, necessitating the use of expensive ab initio methods, based on density functional theory (DFT) which are the most appropriate method to account for these effects that existing empirical potentials cannot reproduce. Coupled with thermodynamic integration, it is the reference method for calculating free energy. However, this method remains very time-consuming and is thus prohibitive to explore the whole phase diagram of gold. Alternative methods exist, such as the quasi-harmonic approximation, but its validity at high temperature is difficult to assess. The goal of this thesis is to propose a method that maintains DFT accuracy while reducing computation time. To achieve this, an accelerated sampling procedure using machine learning is employed. This procedure allows for the training of surrogate potentials, which are then used a posteriori to extract the Gibbs free energies of the considered structures via a non-equilibrium thermodynamic integration calculation. The results obtained have been validated by comparison with those from the temperature-dependent effective potential. In the first part, this approach was applied to construct the phase diagram of solid gold from 0 to 1 TPa and up to 10,000 K. It shows the stabilization of a body-centered cubic (bcc) phase at high temperatures, around 200 GPa. An explanation for the cubic face-centered (fcc)-bcc transition before melting was proposed, based on the effects of interatomic force constants. Furthermore, the stability domains of the fcc and hexagonal close-packed (hcp) phases predicted by this study are in good agreement with most recent experimental results. In the second part, this procedure was extended to calculate the melting curve of gold
Sprosser, Joachim. "Transitions de phases structurales de la surface (110) de l'or". Le Mans, 1992. http://www.theses.fr/1992LEMA1013.
Pełny tekst źródłaTABARY, PATRICK. "Etude du diagramme de phases al#2o#3-aln". Paris 11, 1997. http://www.theses.fr/1997PA112219.
Pełny tekst źródłaTrinité-Quequet, Virginie. "Etude théorique des phases du titane". Palaiseau, Ecole polytechnique, 2006. http://www.theses.fr/2006EPXX0034.
Pełny tekst źródłaVICTOR, JEAN-MARC. "Diagramme de phases et facteurs de structure de macromolecules chargees". Paris 6, 1988. http://www.theses.fr/1988PA066585.
Pełny tekst źródłaMorhard, Klaus-Dieter. "Diagramme de phases de l'³He adsorbé sur le graphite". Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10008.
Pełny tekst źródłaKfouri, Charbel el. "Système Ag-As-Te diagramme de phases et matériaux vitreux /". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614640f.
Pełny tekst źródłaVictor, Jean-Marc. "Diagramme de phases et facteurs de structure de macromolécules chargées". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37619439w.
Pełny tekst źródłaAdjadj-Bouharkat, Fouzia. "Le diagramme d'équilibre entre phases du système ternaire Bi-Sb-Zn". Lyon 1, 1995. http://www.theses.fr/1995LYO10011.
Pełny tekst źródłaLudl, Adriaan-Alexander. "Etude du diagramme de phases des solutions d'électrolytes sous conditions extrêmes". Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066303/document.
Pełny tekst źródłaThe study of amorphous and crystalline phases of solutions gives essential insight on the behaviour of water under conditions relevant for biology and planetary science. The aim of this work is the exploration of the phase diagram of common electrolyte solutions (LiCl-water, NaCl-water) under pressure and temperature conditions (from 77 K to 330 K and up to 5 GPa) relevant for icy bodies such as Europe and Ganymede. In experiments and simulations we search for crystalline phases of ice at high-pressure, which can contain considerable amounts of salt in their lattice (up to 10 % of by weight). We probe the existence of these salty ices, and characterize two exotic, pressure induced properties, polyamorphism and ionic inclusions in the ice lattice. We have produced highly concentrated amorphous solutions of NaCl in water by fast quenching to liquid nitrogen temperature. Our neutron and X-ray diffraction experiments show that the local structure of this amorphous solution at ambient pressure is very similar to the high density amorphous structure of pure water. Our high-pressure experiments with the Paris-Edinburgh cell and our classical Molecular Dynamics calculations show only smooth structure and density changes during compression up to 4 GPa. We discuss the possibility of salt (NaCl) inclusions in the ice VII lattice at high pressure in our experiments by complementary calculations based on Density Functional Theory. The ice VII which crystallized in our experiments is either pure ice, or it contains only a small fraction of the ions from the solution. It may be possible that ions can be included in larger quantities at higher pressures