Auswahl der wissenschaftlichen Literatur zum Thema „Microscopie électronique à balayage et à transmission“
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Zeitschriftenartikel zum Thema "Microscopie électronique à balayage et à transmission"
Riviere, M., M. Rautureau, G. Besson, M. Steinberg und M. Amouri. „Complementarite des rayons X et de la microscopie electronique pour la determination des diverses phases d'une argile zincifere“. Clay Minerals 20, Nr. 1 (März 1985): 53–67. http://dx.doi.org/10.1180/claymin.1985.020.1.05.
Der volle Inhalt der QuelleSpiridonov, Sergei, und Vladimir Yushin. „Ultrastructure of the stoma in Heth mauriesi Adamson, 1982 (Rhigonematida: Hethidae)“. Nematology 2, Nr. 4 (2000): 417–24. http://dx.doi.org/10.1163/156854100509277.
Der volle Inhalt der QuellePrincipato, M., und M. Tosti. „La morphologie interne des stigmates prothoraciques chez le troisième stade larvaire deGasterophilus intestinalis (Diptera : Gasterophilidae)en microscopie électronique à balayage et à transmission“. Annales de Parasitologie Humaine et Comparée 64, Nr. 2 (1989): 143–49. http://dx.doi.org/10.1051/parasite/1989642143.
Der volle Inhalt der QuelleKociak, Mathieu, Luiz Henrique Galvão Tizei, Sophie Meuret, Hugo Lourenço-Martins und Odile Stephan. „Spectromicroscopies électroniques : sonder les propriétés optiques de nanomatériaux avec des électrons rapides“. Photoniques, Nr. 102 (Mai 2020): 39–43. http://dx.doi.org/10.1051/photon/202010239.
Der volle Inhalt der QuelleDe Deyn, Gerlinde, Adriaan Van Aelst und Gerrit Karssen. „Scanning electron microscopical observations on the coastal marine nematode Epsilonema pustulatum (Gerlach, 1952) Lorenzen, 1973 (Nematoda: Epsilonematidae)“. Nematology 2, Nr. 6 (2000): 685–93. http://dx.doi.org/10.1163/156854100509547.
Der volle Inhalt der QuelleAugias, A., N. Benmoussa, S. Jacqueline, J. Boudeau, J. M. Femolant, J. Nogel Jaeger, R. Weil, A. L. Muller und P. Charlier. „Ante-, péri- ou post mortem ? Profil de fracturation en contexte humide : le cas du dépôt en puits (iie–iiie siècles apr. J.-C.) de la place du Jeu-de-Paume, Beauvais (Oise)“. Bulletins et Mémoires de la Société d'Anthropologie de Paris 29, Nr. 1-2 (30.01.2017): 112–16. http://dx.doi.org/10.1007/s13219-016-0177-2.
Der volle Inhalt der QuelleDiebold, M. D., G. Thieffin, Ph Ducrot und T. Caulet. „Aspects en microscopie électronique à balayage de la muqueuse colique normale et des polypes adénomateux et hyperplasiques“. Acta Endoscopica 18, Nr. 1 (Januar 1988): 15–22. http://dx.doi.org/10.1007/bf02965011.
Der volle Inhalt der QuelleNicoli, Cécile, Jean-François Carton, Alexis Vaucheret und Philippe Jacquet. „Caractérisation de la propreté inclusionnaire d’aciers de fonderie par analyse d’images en microscopie électronique à balayage“. Metallurgical Research & Technology 116, Nr. 5 (2019): 511. http://dx.doi.org/10.1051/metal/2018133.
Der volle Inhalt der QuelleZoghbi, André EL, Lorena Klein und Isabelle Frateur. „Évaluation de la résistance à la corrosion des fils orthodontiques par mesures électrochimiques et microscopie électronique à balayage (MEB)“. L'Orthodontie Française 84, Nr. 4 (27.11.2013): 367–81. http://dx.doi.org/10.1051/orthodfr/2013063.
Der volle Inhalt der QuelleArbouet, Arnaud, Florent Houdellier, Giuseppe Mario Caruso, Sophie Meuret, Mathieu Kociak und Sébastien Weber. „Observer la matière à l’échelle du nanomètre et de la femtoseconde : la microscopie électronique en transmission ultrarapide“. Photoniques, Nr. 102 (Mai 2020): 26–30. http://dx.doi.org/10.1051/photon/202010226.
Der volle Inhalt der QuelleDissertationen zum Thema "Microscopie électronique à balayage et à transmission"
Haas, Benedikt. „Développement de techniques quantitatives en microscopie électronique à balayage en transmission“. Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY018/document.
Der volle Inhalt der QuelleIn this work, different scanning transmission electron microscopy (STEM) techniques have been developed and applied to several material systems. The creation of novel materials and devices has been a backbone of society’s development and characterization methods are needed to investigate these materials in order to understand and improve them. With the advent of nanotechnology, electron microscopy has become an invaluable tool, as it is able to visualize the atomic structure of thin samples and produces a plethora of quantifiable signals.In a first part, the numerous developments realized in this thesis are presented. Several STEM based techniques have been improved: scanning moiré fringes (SMF), nano-beam precession diffraction (NPED) and high-resolution STEM (HR-STEM). These developments allow for more accurate strain measurements, the quantitative mapping of electric fields and to realize accurate chemical profiles.In a second part, the developed methods are applied to different material systems and compared to more classical techniques, like holography and differential phase contrast (DPC). In a II/VI solar cell structure the interface chemistry is determined from strain with atomic resolution. Very faint strain gradients that are vital for the topological insulator properties of HgTe are measured. Accurate two-dimensional strain maps are obtained of a SiGe transistor. Simultaneous strain and electric field maps of m-plane AlN/GaN reveal the influence of dislocations in the material. Core-shell type inversion domains are described for the first time in GaN nanowires. They were found in many samples grown by molecular beam epitaxy. Thanks to quantitative analysis the exact atomic structure of inversion domains in GaN is described and compared to simulations
Bogner, Agnès. „Le Mode d'imagerie wet-STEM : développement, optimisation et compréhension : application aux mini-émulsions et latex“. Lyon, INSA, 2006. http://theses.insa-lyon.fr/publication/2006ISAL0066/these.pdf.
Der volle Inhalt der QuelleContrary to conventional electron microscopy, ESEM (Environmental Scanning Electron Microscopy) does not require high vacuum conditions in the microscope chamber. One of the most unique features of ESEM is that it become possible to use electron microscopy for the observation of entirely liquid specimens in their native state with no prior treatment. The present PhD study concerns the development of a new imaging mode: the wet-STEM, which extends the potentialities of ESEM for the characterization of liquid samples to nanometric resolution and very important contrast. The principle is to image a thin liquid film containing nanometric objects in transmission using annular dark-field detection conditions. This technique seems especially suitable for imaging mini-emulsions and lattices, as well as non aqueous liquids and micro-organisms
Acevedo, Reyes Daniel. „Evolution de l'état de précipitation au cours de l'austénitisation d'aciers microalliés au vanadium et au niobium“. Lyon, INSA, 2007. http://theses.insa-lyon.fr/publication/2007ISAL0008/these.pdf.
Der volle Inhalt der QuelleGrain size control during heat treatments in austenite can be ensured by vanadium and niobium carbonitrides. However, the evolution of the precipitation state must be known to optimise the austenisation treatment, and no quantitative characterisation of this kind is available nowadays. This study deals with the dissolution kinetics of vanadium and niobium carbonitrides in austenite, for two high purity model alloys FeCV and FeCVNb, and a commercial alloy designed for springs fabrication. The characterisation combines several experimental techniques : structure and chemical composition of precipitates are established by transmission electronic microscopy and related techniques (EDS analysis, HAADF), particle size distribution is measured by means of scanning electronic microscopy (using a STEM detector), and volume fraction of precipitates is estimated by dosing the precipitated phases after an electrolytic dissolution of the matrix. In order to predict the evolution of the precipitation state during an austenitisation treatment, a precipitation-dissolution model has been developed. The modelling approach used in this work allows the description of (i) a non stoichiometric binary precipitate, the coexistence of two independent binary precipitates, (iii) the evolution of a single family of homogeneous ternary precipitates with varying chemical composition (VxNb1-xC). These different approaches were calibrated and validated on model alloys, then applied to the industrial alloy
Mory, Claudine. „Étude théorique et expérimentale de la formation de l'image en microscopie électronique à balayage par transmission“. Paris 11, 1985. http://www.theses.fr/1985PA112134.
Der volle Inhalt der QuelleThis thesis contains a theoretical and experimental study of image formation in a dedicated scanning transmission electron microscope (STEM). Using a detailed description of the different optical elements between the field emission source and the specimen, one calculates the shape and size of the primary probe of electrons impinging on the sample. This modelization enables to estimate the spatial resolution in the different imaging or micro analytical modes. The influence of the specimen and the role of the various detectors are taken into account to calculate the point speed function of the instrument in STEM imaging modes. An experimental study of the characteristic properties of phase contrast bright field micrographs and incoherent dark field ones is performed by comparison of digitally recorded images in similar conditions. Spatial resolution, contrast and signal/noise ratio are assessed by correlation methods, Fourier analysis and statistical considerations; one can deduce the optimum focusing conditions. Limits such as the point resolution on quasi-atomic metallic clusters are determined and an analysis of the capabilities of signal mixing concludes this work. Applications are offered in various domains such as the visualization of small metallic particles, biomolecules and unstained biological sections
Courtois, Eglantine. „Etude de la Précipitation des Carbures et des Carbonitrures de Niobium dans la Ferrite par Microscopie Electronique en Transmission et Techniques Associées“. Lyon, INSA, 2005. http://theses.insa-lyon.fr/publication/2005ISAL0103/these.pdf.
Der volle Inhalt der QuelleTEM study aims to further the understanding of the mechanisms of precipitation of carbides and carbonitrides in niobium microalloyed steels. In this work, two model ferritic alloys have been used. From a general point of view, TEM techniques have been consistently used for studying the crystallography, size, shape and volume fraction of the precipitates. Both thin foils and extraction replicasz in AlOx have been studied. Analysis performed with Tomographic Atom Probe (TAP) confirmed TEM results. At the early stages of precipitation, in Fe-Nb-C-N system, niobium nitride monoatomic platelets, such as Guinier Preston zones, have been simultaneously with already formed precipitates Nb(C, N), with a F. C. C. Structure and in Baker-Nutting relationship with the matrix. For more advanced stages of precipitation, the chemical composition of nanoparticles as small as 6 nm in diameter, is determined by EELS. Experiments indicate the coexistence of two types of precipitates : (i) pure niobium nitrides and (ii) mixed niobium carbonitrides with increasing carbon fraction and decreasing nitrogen during the precipitation kinetic. In order to understand the chemical composition evolution of these precipitates, a thermodynamical formalism has been developed to evaluate (i) the nucleation and growth rates (classical nucleation theory) and (ii) the chemical composition of nuclei and existing precipitates. The results of this model are in excellent qualitative agreement with the experiments, that is both populations evolve simultaneously in equilibrium, and nitrides are found in a lower number but with a larger size than carbonitrides
Autillo-Touati, Amapola. „Etude in vitro de la morphogenèse et de la polarité neuronale : analyse en miscroscopie électronique à transmission et à balayage“. Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX21901.
Der volle Inhalt der QuelleEl, Hajraoui Khalil. „Études in-situ dans un microscope électronique en transmission des réactions à l’état solide entre métal et nanofil de Ge“. Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY012/document.
Der volle Inhalt der QuelleSemiconductor nanowires (NWs) are promising candidates for many device applications ranging from electronics and optoelectronics to energy conversion and spintronics. However, typical NW devices are fabricated using electron beam lithography and therefore source, drain and channel length still depend on the spatial resolution of the lithography. In this work we show fabrication of NW devices in a transmission electron microscope (TEM) where we can obtain atomic resolution on the channel length using in-situ propagation of a metallic phase in the semiconducting NW independent of the lithography resolution. We show results on semiconducting NW devices fabricated on two different electron transparent Si3N4 membranes: a planar membrane and a membrane where devices are suspended over holes. First we show the process of making lithographically defined reliable electrical contacts on individual NWs. Second we show first results on in-situ propagation of a metal-semiconductor phase in Ge NWs by joule heating, while measuring the current through the device. Two different devices are studied: one with platinum metal contacts and one with copper contacts. Different phenomena can occur in CuGe NWs during phase propagation
Gourmala, Ouassila. „Optimisation de la croissance de GaN de bonne qualité par HVPE et ELO-HVPE“. Clermont-Ferrand 2, 2010. http://www.theses.fr/2010CLF22032.
Der volle Inhalt der QuelleCrouzier, Loïc. „Développement d'une nouvelle approche hybride combinant AFM et MEB pour la métrologie dimensionnelle des nanoparticules“. Thesis, Poitiers, 2020. http://www.theses.fr/2020POIT2260.
Der volle Inhalt der QuelleIn order to take advantages of remarkable properties of the nanomaterials related to their size but also assess their potential risks, industrial actors need to rely on robust measurement methods that provide all the required dimensional information. However, there is no instrument capable of measuring a nanoparticle in all three dimensions of space with controlled uncertainty. The aim of this work is to combine diameter measurements by scanning electron microscopy (SEM) with height measurements by atomic force microscopy (AFM). The use of silica particles, supposedly spherical, allows to validate this hybrid approach combining AFM and SEM. First, the uncertainty budget associated with the measurement of nanoparticles by SEM was established. We have demonstrated that the main contribution to the uncertainty budget is the size of the electron beam, which is difficult to measure. Two methods, based on Monte Carlo modelling, have been developed to evaluate the influence of this parameter on the SEM measurement. The first is based on the comparison between experimental and simulated signals. The second is based on the segmentation of the SEM images using a remarkable point, not influenced by the dimensions of the electron beam. These two methods have shown that the error related to the beam size is largely overestimated using conventional image segmentation tools. From these results, a direct comparison of AFM and SEM measurements was performed on the same particles. A systematic discrepancy was observed between the two techniques for the smallest particles related to their non-sphericity. The use of a third technique, transmission electron microscopy (TEM), confirms these observations. Finally, the hybrid approach has been implemented for measuring the three characteristic dimensions of the complex-shaped nano-objects with very non-spherical morphology
Perrot, Philippe. „Modifications morphologiques et microstructurales du matériau actif des cathodes de batteries à l'ion lithium induites par broyage et traitement thermique“. Poitiers, 1998. http://www.theses.fr/1998POIT2264.
Der volle Inhalt der QuelleBücher zum Thema "Microscopie électronique à balayage et à transmission"
Keyse, Robert. Introduction to Scanning Transmission Electron Microscopy. CRC Press LLC, 2018.
Den vollen Inhalt der Quelle findenKeyse, Robert. Introduction to Scanning Transmission Electron Microscopy. Taylor & Francis Group, 2018.
Den vollen Inhalt der Quelle findenIntroduction to Scanning Transmission Electron Microscopy. CRC Press LLC, 2018.
Den vollen Inhalt der Quelle findenBruma, Alina. Scanning Transmission Electron Microscopy. Taylor & Francis Group, 2020.
Den vollen Inhalt der Quelle findenBruma, Alina. Scanning Transmission Electron Microscopy: Advanced Characterization Methods for Materials Science Applications. Taylor & Francis Group, 2020.
Den vollen Inhalt der Quelle findenBruma, Alina. Scanning Transmission Electron Microscopy: Advanced Characterization Methods for Materials Science Applications. Taylor & Francis Group, 2020.
Den vollen Inhalt der Quelle findenBruma, Alina. Scanning Transmission Electron Microscopy: Advanced Characterization Methods for Materials Science Applications. Taylor & Francis Group, 2020.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Microscopie électronique à balayage et à transmission"
Brisset, François, Florence Robaut, Guillaume Wille, Philippe Jonnard, Jacky Ruste, Denis Boivin, Georges Slodzian, D. Blavette und E. Cadel. „16 . Division Groupement National de Microscopie Électronique à Balayage et microAnalyse (GN-MEBA)“. In Les 150 ans de la Société Française de Physique, 257–65. EDP Sciences, 2023. http://dx.doi.org/10.1051/978-2-7598-3076-3.c017.
Der volle Inhalt der QuelleGENTILS, Aurélie, Stéphanie JUBLOT-LECLERC und Patrick SIMON. „Caractérisation des dommages d’irradiation“. In Les matériaux du nucléaire sous irradiation, 273–96. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch10.
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