Academic literature on the topic 'DIffusion de rayons X aux Petits Angles'
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Journal articles on the topic "DIffusion de rayons X aux Petits Angles"
Brusset, H. "La structure colloïdale des charbons (Diffusion des rayons X aux petits angles)." Bulletin des Sociétés Chimiques Belges 57, no. 7-9 (September 1, 2010): 373–80. http://dx.doi.org/10.1002/bscb.19480570711.
Full textBen Rhaiem, H., and C. H. Pons. "Ajustement des courbes de diffusion aux petits angles des rayons X, produites par des argiles fortement hydratees dans le cas d'une focalisation lineaire de hauteur finie." Clay Minerals 31, no. 2 (June 1996): 279–82. http://dx.doi.org/10.1180/claymin.1996.031.2.13.
Full textRubatat, L., A. L. Rollet, O. Diat, and G. Gébel. "Caractérisation de la structure des membranes ionomères (NAFION®) par diffusion de rayons X aux petits angles." Journal de Physique IV (Proceedings) 12, no. 6 (July 2002): 197–206. http://dx.doi.org/10.1051/jp4:20020227.
Full textDestremaut, Fanny, C. Masselon, P. Laval, G. Cristobal, A. Dodge, J. B. Salmon, and R. Barrett. "Microfluidique et diffusion de rayons X aux petits angles : des outils pour étudier les processus sol-gel." La Houille Blanche, no. 6 (December 2007): 26–33. http://dx.doi.org/10.1051/lhb:2007078.
Full textCombet, J. "Structure des solutions de polyélectrolytes : apport de la diffusion des rayons X et des neutrons aux petits angles." École thématique de la Société Française de la Neutronique 11 (2010): 153–76. http://dx.doi.org/10.1051/sfn/201011010.
Full textCornet, N., G. Gebel, and A. de Geyer. "Existence d'un paradoxe de Schroeder avec la membrane Nafion ? Étude par diffusion de rayons X aux petits angles." Le Journal de Physique IV 08, PR5 (October 1998): Pr5–63—Pr5–68. http://dx.doi.org/10.1051/jp4:1998509.
Full textGuinier, A. "Détermination de la taille et de l'arrangement mutuel des grosses molécules par la diffusion des rayons X aux petits angles." Bulletin des Sociétés Chimiques Belges 57, no. 7-9 (September 1, 2010): 286–97. http://dx.doi.org/10.1002/bscb.19480570704.
Full textRhaiem, H. Ben, D. Tessier, and Ch H. Pons. "Comportement hydrique et évolution structurale et texturale des montmorillonites au tours d'un cycle de dessiccation-humectation: partie I. Cas des montmorillonites calciques." Clay Minerals 21, no. 1 (March 1986): 9–29. http://dx.doi.org/10.1180/claymin.1986.021.1.02.
Full textPardo, B., F. Bridou, and M. Maaza. "Réflectométrie X et diffusion aux petits angles." Le Journal de Physique IV 06, no. C4 (July 1996): C4–351—C4–366. http://dx.doi.org/10.1051/jp4:1996432.
Full textDissertations / Theses on the topic "DIffusion de rayons X aux Petits Angles"
Mannix, Oonagh. "Etude de complexes de nanoparticules et polysaccharides par diffusion de rayons X aux petits angles." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAV068.
Full textThe macroscopic properties and long-term stability of a colloidal suspension are controlled by its microstructure. Inter-particle interactions determine the microstructure and dynamics of the system. Colloidal systems are often metastable and so the inter-particle correlations can change with time (and so change the microstructure, and macroscopic properties of the system). As smaller colloidal particles can be used to form larger structures with different properties it is necessary to examine a system across various size scales.In this PhD thesis a combination of small and ultra-small angle x-ray scattering (U)SAXS and x-ray photon correlation spectroscopy (XPCS) techniques are used to investigate colloidal complexation across both time and space. Spatial scales from nanometers (si{nanometre}) to microns (si{micrometre}) and time scales from milliseconds (si{millisecond}) to months were examined to elucidate the formation pathway and structural evolution of the complexes. To uncover general mechanisms of broad relevance this work uses technical-grade, non-ideal materials. The study is on the complexation of silica nanoparticles and chitosan, a bio-sourced, cationic polysaccharide.First, a new description for scattering data of polydisperse silica nanoparticles using a fractal model is employed. An investigation into the small-angle scattering of chitosan by neutrons and x-rays, and static light scattering reveals significant differences that are not readily explained. The investigation of nanoparticle and polysaccharide complexes uses kinetic SAXS measurements to study the formation pathways of the complexes, with rapid mixing experiments to access shorter times (stopped-flow apparatus). Combined USAXS and SAXS data are analysed to provide information on the complex structure within a state diagram. Salt was removed from the system using dialysis, and the subsequent behaviour of the system was investigated. It was found that the behaviour of the dialysed system differed to the behaviour of the non-dialysed system over long timescales. In the dialysed system the growth of crystallites of colloidal silica was observed. These results, along with an investigation into the temperature dependency of the system lead to some understanding of the microstructure of this type of colloidal complex
Dufaye, Maxime. "Synthèses, caractérisations et cristallochimie de polyoxométallates incorporant des actinides et des lanthanides comme simulants d’actinides." Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1R036/document.
Full textThe research of molecules for the extraction and stabilization of actinides is a key topic in the field of chemistry related to the reprocessing of spent fuels in the nuclear industry. Among the chemical species, vacant polyoxometalates, owing to their modular structural properties and high nucleophilia, are good candidates for the complexation of metal cations. In this context, the association of trivacant polyoxotungstates with tetravalent and hexavalent actinides (thorium(IV), uranium(IV and VI)) and lanthanides considered as minor actinide simulants was investigated. The studies concerned the reactivity of trivacant precursors {SiW9O34}, {AsIIIW9O33}, {AsVW9O34} and {PW9O34} with 4f elements (Ce(IV)) and 5f (Th(IV), (U(VI)), which resulted in the complexation of hexanuclear clusters {Ce6O8} or polyanionic systems incorporating up to 12 actinides Th(IV) or U(VI) centers. Cryptand species {As4W40O140} and {P8W48O184} have encapsulated up to 4 uranium(IV) cations or 7.2 uranyl cations per molecule respectively. The third cryptant tested {Na2Sb8W36O132(H2O)4} did not allow actinide complexation. It nevertheless reorganizes, forming a polyanionic entity containing the species {SbW10O37} and {SbW8O31} during the reaction with trivalent lanthanides (Gd --> Lu). A total of 23 crystallized compounds were characterized by single crystal X-ray diffraction. The various molecular assemblies have been subjected to physico-chemical characterizations (IR, TGA). Their stability, particularly in aqueous solution, has been demonstrated by X-ray scattering (SAXS)
Sbai, Ali. "Analyse et simulations par ordinateur de la microstructure des craquelures et de leur diffusion des rayons X aux petits angles /." [S.l.] : [s.n.], 1990. http://library.epfl.ch/theses/?nr=840.
Full textJalal, Noureddine. "Etude des agregats formes par neutralisation des chaines monocarboxylees par : diffusion aux petits angles des neutrons et des rayons x." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13137.
Full textEGEA, PASCAL. "Etudes structurales des recepteurs nucleaires des retinoides : rxr et rar par diffusion aux petits angles et cristallographie des rayons x." Université Louis Pasteur (Strasbourg) (1971-2008), 1999. http://www.theses.fr/1999STR13131.
Full textJalal, Noureddine. "Etude des agrégats formés par neutralisation des chaînes monocarboxylées, par diffusion aux petits angles des neutrons et des rayons X." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614476w.
Full textDufour, Catherine. "Etude des propriétés structurales et magnétiques de multicouches Fe/Si par spectroscopie Mössbauer et diffusion aux petits angles de R. X. Et de neutrons polarisés." Vandoeuvre-les-Nancy, INPL, 1990. http://www.theses.fr/1990INPL005N.
Full textQuienne, Pascale. "Mécanisme de coagulation-floculation de la silice colloi͏̈dale par les hydroxydes de fer : étude par diffusion aux petits angles des rayons X." Orléans, 1989. http://www.theses.fr/1989ORLE2024.
Full textLours, Thierry. "Etude structurale de la transformation sol-gel : caractérisation des aérogels et étude de leur densification par diffusion des rayons X aux petits angles." Montpellier 2, 1989. http://www.theses.fr/1989MON20012.
Full textFouilloux, Sarah. "Nanoparticules et microfluidique pour un système modèle d'émulsions de Pickering. Etude des mécanismes de stabilisation et déstabilisation." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00628612.
Full textBook chapters on the topic "DIffusion de rayons X aux Petits Angles"
"10. Diffusion aux petits angles des rayons X et des neutrons." In Du verre au cristal, 233–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2-016.
Full text"10. Diffusion aux petits angles des rayons X et des neutrons." In Du verre au cristal, 233–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1064-2.c016.
Full textBLIVI, Adoté Sitou, Benhui FAN, Djimédo KONDO, and Fahmi BEDOUI. "Technique de caractérisation morphologique des polymères nanorenforcés." In Nanocomposites, 49–71. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9031.ch2.
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