Academic literature on the topic 'Microstructure des roches'

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Journal articles on the topic "Microstructure des roches"

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Fauchille, Anne-Laure, Bram van den Eijnden, Kevin Taylor, and Peter David Lee. "Détermination de la taille et du nombre d’échantillons devant être analysés en laboratoire pour la caractérisation statistique de la microstructure d’une roche argileuse." Revue Française de Géotechnique, no. 165 (2020): 1. http://dx.doi.org/10.1051/geotech/2020024.

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À l’échelle du laboratoire, les roches argileuses sont des matériaux hétérogènes dont le comportement thermo-hydromécanique est en grande partie contrôlé par la microstructure. Le choix du nombre et de la taille des échantillons à étudier en laboratoire est déterminant pour appréhender la variabilité des propriétés de la roche argileuse à petite échelle. Cet article présente une méthode statistique permettant de préciser la surface (ou le volume) et le nombre d’échantillons à prendre en compte pour qu’une propriété p choisie caractérisant la microstructure, soit statistiquement représentative.
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Higgins, Michael Denis. "Igneous Rock Associations 17. Advances in the Textural Quantification of Crystalline Rocks." Geoscience Canada 42, no. 2 (2015): 263. http://dx.doi.org/10.12789/geocanj.2015.42.069.

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During the last 20 years, textural (microstructural) studies have regained their place in the pantheon of petrographic methods. This has happened by quantifying textures, so that models can be developed and tested – an approach that has proved to be so successful for chemical and isotopic studies. The combination of chemical, isotopic and textural methods, especially if applied to different crystal populations, can be a very powerful tool in the clarification of petrologic histories of rocks. Here, I will discuss some recent advances in the application of textural studies to crystalline rocks.
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Goswami, Tapos Kumar. "Kink band microstructures in Mica in the Dafla Formation of the Siwalik Group of rocks, West Kameng District, Arunachal Pradesh." International Journal of Scientific Research 2, no. 12 (2012): 260–61. http://dx.doi.org/10.15373/22778179/dec2013/75.

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Trepmann, Claudia A., and John G. Spray. "Shock-induced crystal-plastic deformation and post-shock annealing of quartz: microstructural evidence from crystalline target rocks of the Charlevoix impact structure, Canada." European Journal of Mineralogy 18, no. 2 (2006): 161–73. http://dx.doi.org/10.1127/0935-1221/2006/0018-0161.

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Ciftci, Eda, Sevil Köse, Petek Korkusuz, Muharrem Timuçin, and Feza Korkusuz. "Boron Containing Nano Hydroxyapatites (B-n-HAp) Stimulate Mesenchymal Stem Cell Adhesion, Proliferation and Differentiation." Key Engineering Materials 631 (November 2014): 373–78. http://dx.doi.org/10.4028/www.scientific.net/kem.631.373.

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Osteoporosis (OP) is a systemic metabolic disease identified with decrease of bone mineral density and deterioration of microstructure leading to fragility fractures in elderly. Boron (B) is assumed to stimulate osteoblasts. Hydroxyapatite (HAp) is clinically used to conduct bone regeneration and improves implant integration. Nano(n)-HAp expands the surface area for cell adhesion and may improve bone regeneration and tissue integration. The objective of this study was to examine the adhesion, proliferation and differentiation of B-n-HAp with mesenchymal stem cells (MSC’s). Human bone marrow de
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M. Salleh, M. N., M. Ishak, M. H. Aiman, M. M. Quazi, and A. M. Hanafi. "Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application." International Journal of Automotive and Mechanical Engineering 16, no. 4 (2019): 7364–74. http://dx.doi.org/10.15282/ijame.16.4.2019.12.0546.

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The pulse wave (PW) mode is an excellent replacement for continuous wave (CW) mode f laser welding in the tailor-welded blank (TWB) application for the automotive ndustry. Due to its ability to produce higher peak power in low power laser pulse mode, he weld penetration and high weld quality can be achieved similarly to the utilization of very high power laser of CW mode. This present work was carried out to investigate the ffect of pulse laser welding parameters of a dissimilar thickness of boron steel for the TWB application. Low power fibre laser with 200 W average power was chosen in this
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Farrow, M., J. Biglands, S. Tanner, et al. "THU0522 DIFFERENCES IN MUSCLE PROPERTIES IN GCA PATIENTS COMPARED TO HEALTHY CONTROLS AS ASSESSED BY QUANTITATIVE MRI." Annals of the Rheumatic Diseases 79, Suppl 1 (2020): 500.2–500. http://dx.doi.org/10.1136/annrheumdis-2020-eular.6025.

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Background:Giant cell arteritis (GCA) is a systemic inflammatory vasculitis that often presents with headaches and visual symptoms. It is a medical emergency as it can lead to permanent sight loss. Prompt treatment with high doses of glucocorticoid therapy are often required. However, it has been shown that GCA patients on glucocorticoid therapy develop muscle weakness, known as glucocorticoid induced myopathy (1).Quantitative MRI may be sensitive to detect the differences in muscle parameters between newly diagnosed GCA patients compared to healthy controls. MRI T2 is sensitive to fluid relat
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Kemenes, S., S. Bayat, D. Simon, et al. "AB0385 BARICITINIB LEADS TO RAPID AND PERSISTENT RESOLUTION OF SYNOVITIS AS MEASURED BY HAND MRI IN PATIENTS WITH ACTIVE RHEUMATOID ARTHRITIS (RA) FAILING cs/bDMARD THERAPY." Annals of the Rheumatic Diseases 81, Suppl 1 (2022): 1320–21. http://dx.doi.org/10.1136/annrheumdis-2022-eular.476.

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BackgroundRA is characterized by synovial inflammation resulting in local bone loss [1]. Inhibitors of JAK/Stat pathways, such as baricitinib, demonstrated efficacy in reducing signs and symptoms of RA in clinical trials, however, little is known about their effects on synovitis and bone structure [2]. Preclinical and clinical observations suggest a positive effect JAK inhibitors on bone mass and microstructure, however no prospective, interventional clinical trial has been performed so far [3].ObjectivesThe aim of this study is to evaluate the effect of baricitinib on local inflammation (syno
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Leiderman, Ricardo, Andre M. B. Pereira, Francisco M. J. Benavides, Carla S. Silveira, Rodrigo M. R. Almeida, and Rodrigo A. Bagueira. "PERSONAL COMPUTER-BASED DIGITAL PETROPHYSICS." Revista Brasileira de Geofísica 35, no. 2 (2017). http://dx.doi.org/10.22564/rbgf.v35i2.891.

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ABSTRACT. In the present work, we describe our experience with digital petrophysics, enhancing our choices for performing the related tasks. The focus is on the use of ordinary personal computers. To our best knowledge, some of the information and hints we give cannot be found in the literature and we hope they may be useful to researchers that intend to work on the development of this new emerging technology. We have used micro-scale X-ray computed tomography to image the rock samples and, in that sense, we address here the issue of the corresponding image acquisition and reconstruction param
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Dissertations / Theses on the topic "Microstructure des roches"

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Léger, Marie. "Formation des réseaux karstiques : Rôle des hétérogénéités structurales, hydrodynamiques et minérales." Thesis, Université de Montpellier (2022-….), 2022. http://www.theses.fr/2022UMONG012.

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Les roches carbonatées constituent une part très importante des roches présentes à la surface de la Terre. Les réservoirs qui y sont associés représentent des ressources indispensables aux sociétés humaines, quelles soient directes (eau, gaz, hydrocarbures) ou indirectes (géothermie, stockage du CO2).La forte réactivité des roches carbonatées est responsable de la karstification, processus de réaction dû au déséquilibre thermodynamique entre la roche et l'eau qui circule dans le réservoir. Il en découle la formation d'aquifères karstiques, caractérisés par de fortes hétérogénéités structurales
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Fabre, Géraldine. "Fluage et endommagement des roches argileuses : évolution de la microstructure et modélisation phénoménologique." Phd thesis, Université Joseph Fourier (Grenoble), 2005. http://tel.archives-ouvertes.fr/tel-00009830.

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La durée d'exploitation des ouvrages de stockage souterrain, en particulier de déchets radioactifs, dépasse de très loin les échelles de temps habituelles en génie civil et rend donc leur dimensionnement délicat. Pour ces projets de construction, la prise en compte du temps devient primordiale et la prévision des déformations irréversibles à long terme est indispensable pour assurer leur pérennité et leur sûreté. Dans ce but, les études expérimentales et modélisations numériques du comportement différé tentent d'évaluer, à proximité de la cavité, l'extension de la zone endommagée, EDZ (Excavat
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Ammiar, Belkacem. "Microstructure et effet d'échelle dans les essais de micro-indentation sur les roches." Marne-la-vallée, ENPC, 2003. http://www.theses.fr/2003ENPC0004.

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L'essai de micro-indentation dans les roches consiste à faire pénétrer un outil dans une roche afin de mesurer sa dureté et d'évaluer ses paramètres de résistance (angle de frottement et cohésion ) à partir de la force d'indentation et de la profondeur de pénétration de l'outil. Pour des roches granulaires, l'interaction entre l'outil et la roche se produit à une échelle comparable à celle de la microstructure du matériau et rend nécessaire l'étude de l'effet de la taille de l'indenteur sur les caractéristiques mécaniques apparentes du matériau. L'objet de ce travail est d'étudier cet effet d'
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Léger, Marie. "Formation des réseaux karstiques : Rôle des hétérogénéités structurales, hydrodynamiques et minérales." Thesis, Montpellier, 2022. http://www.theses.fr/2022MONTG012.

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Les roches carbonatées constituent une part très importante des roches présentes à la surface de la Terre. Les réservoirs qui y sont associés représentent des ressources indispensables aux sociétés humaines, quelles soient directes (eau, gaz, hydrocarbures) ou indirectes (géothermie, stockage du CO2).La forte réactivité des roches carbonatées est responsable de la karstification, processus de réaction dû au déséquilibre thermodynamique entre la roche et l'eau qui circule dans le réservoir. Il en découle la formation d'aquifères karstiques, caractérisés par de fortes hétérogénéités structurales
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Zoussi, Sophia. "Mesures et modélisation de la microstructure et des propriétés de transport de roches sédimentaires." Université Louis Pasteur (Strasbourg) (1971-2008), 1995. http://www.theses.fr/1995STR10335.

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Kalo, Kassem. "Caractérisation microstructurale et modélisation micromécanique de roches poreuses oolithiques." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0203/document.

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Le but de ce travail est d'étudier l'influence de la microstructure de roches poreuses hétérogènes sur le comportement à l'échelle macroscopique. Ainsi, nous avons caractérisé la microstructure et les propriétés micromécaniques (grâce à des tests de nano-indentation) de deux roches oolithiques poreuses (calcaire de Lavoux et minerai de fer) pour calculer leurs propriétés mécaniques et thermiques effectives. Les roches oolithiques sont constituées d'un assemblage de grains poreux (oolithes), de pores et de cristaux intergranulaires. La microscopie électronique à balayage et la tomographie 3D au
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Gasc-Barbier, Muriel. "Étude des mécanismes de déformation de roches argileuses profondes : apport de la microstructure et des analyses pétrophysiques." Paris 6, 2002. http://www.theses.fr/2002PA066151.

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Saur, Hugo. "Étude des microstructures par tomographie à rayons X : application aux roches clastiques à grain fin." Electronic Thesis or Diss., Pau, 2022. http://www.theses.fr/2022PAUU3005.

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L’étude de la microstructure des roches est indispensable pour nos enjeux contemporains et futurs en matière d'énergie, d’ingénierie et de construction. D’autre part, cette étude permet de caractériser les processus de déformation géologique ayant conduit à l’état actuel des unités lithologiques. Les roches clastiques à grain fin, communément appelées "shales" en anglais, représentent environ deux-tiers de l’ensemble des roches sédimentaires. Les données 3D relatives aux grains de silt ou clastes inclus dans la matrice argileuse et poreuse de ce type de roche sont peu fréquentes. Ces données s
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Clavaud, Jean-Baptiste. "Etude des proprietes de transport (hydraulique et electrique) des roches : effets de la microstructure, de la presence de plusieurs fluides, de la fracturation et de l'interaction eau-roche." Paris 7, 2001. http://www.theses.fr/2001PA077016.

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L'objectif de cette these est de contribuer a la comprehension des proprietes de transport des roches poreuses ou peu poreuses et fracturees. Une attention particuliere a ete accordee aux effets de la geometrie du reseau poreux, de l'etat de saturation, de l'anisotropie, de l'echelle des heterogeneites et des interactions fluides-roche. Dans la premiere partie de ce travail, concernant les proprietes hydrauliques (experiences et modelisation) des roches poreuses, on a montre que : les permeabilites relatives des roches pyroclastiques sont superieures (pour un meme etat de saturation) a celles
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Xie, Shouyi Shao Jianfu. "Contribution à l'étude du comportement mécanique d'une roche poreuse." Villeneuve d'Ascq : Université des sciences et technologies de Lille, 2007. https://iris.univ-lille1.fr/dspace/handle/1908/189.

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Reproduction de : Thèse de doctorat : Génie civil : Lille 1 : 2005.<br>N° d'ordre (Lille 1) : 3647. Résumé en français et en anglais. Titre provenant de la page de titre du document numérisé. Bibliogr. p. 128-135.
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Books on the topic "Microstructure des roches"

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Barker, A. J. Introduction to metamorphic textures and microstructures. Blackie, 1990.

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Dresen, Georg, Mark Handy, and Christoph Janssen. Deformation Mechanisms Rheology Microstructures. [Neustadt an der Weinstrasse], 1999.

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Werner, Skrotzki, ed. The geological significance of microstructures in crystalline rocks. E. Schweizerbart, 1992.

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1939-, Bennett Richard Harold, Bryant William R, and Hulbert Mattthew H, eds. The Microstructure of fine-grained sediments, from mud to shale. Springer-Verlag, 1991.

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Passchier, C. W. (Cees W.), 1954-, Wiersma Dirk J. 1939-, and SpringerLink (Online service), eds. Atlas of Mylonites - and related microstructures. Springer-Verlag Berlin Heidelberg, 2010.

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1964-, Bons Paul Dirk, Koehn Daniel, and Jessell Mark W, eds. Microdynamics simulation. Springer, 2008.

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1964-, Bons Paul Dirk, Koehn Daniel, and Jessell Mark W, eds. Microdynamics simulation. Springer, 2008.

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1964-, Bons Paul Dirk, Koehn Daniel, and Jessell Mark W, eds. Microdynamics simulation. Springer, 2008.

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A practical guide to rock microstructure. Cambridge University Press, 2008.

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Mukherjee, Soumyajit. Deformation Microstructures in Rocks. Springer, 2016.

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Book chapters on the topic "Microstructure des roches"

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Nagel, Thomas, Tuanny Cajuhi, Ralf-Michael Günther, et al. "Introduction to GeomInt2." In SpringerBriefs in Earth System Sciences. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-26493-1_1.

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AbstractGeomInt2 is the follow-up project to the joint project “Geomechanical Integrity of Host and Barrier Rocks—Experiment, Modelling and Analysis of Discontinuities (GeomInt)”. The results of GeomInt made essential contributions to the analysis of the origin and development of discontinuities in clay, salt and crystalline rocks. Discontinuities are considered in many forms, be it as volumetrically distributed damage macroscopically representing fissures in the rock microstructure, discontinuities that can form anew at phase interfaces as well as discrete cracks or fracture networks. The pat
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Barber, David J. "Régimes of plastic deformation — processes and microstructures: an overview." In Deformation Processes in Minerals, Ceramics and Rocks. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-6827-4_7.

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Ague, Daria M., Hans-Rudolf Wenk, and Eduard Wenk. "Deformation microstructures and lattice orientations of plagioclase in Gabbros from central Australia." In The Brittle‐Ductile Transition in Rocks. American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm056p0173.

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Tullis, Jan. "Experimental studies of deformation mechanisms and microstructures in quartzo-feldspathic rocks." In Deformation Processes in Minerals, Ceramics and Rocks. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-6827-4_9.

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Chester, F. M., and J. M. Logan. "Frictional faulting in polycrystalline halite: Correlation of microstructure, mechanisms of slip, and constitutive behavior." In The Brittle‐Ductile Transition in Rocks. American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm056p0049.

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Knipe, Robert J. "Microstructural analysis and tectonic evolution in thrust systems: examples from the Assynt region of the Moine Thrust Zone, Scotland." In Deformation Processes in Minerals, Ceramics and Rocks. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-6827-4_10.

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Miura, K., and K. Maeda. "Non-linear deformation behavior of granular materials by Elliptic Microstructure Model." In Deformation Characteristics of Geomaterials / Comportement Des Sols Et Des Roches Tendres. Taylor & Francis, 2003. http://dx.doi.org/10.1201/noe9058096043.ch148.

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Tanaka, H., F. Rito, M. Tanaka, and N. Ohmukai. "Change in microstructure of Pleistocene clays due to one-dimensional consolidation." In Deformation Characteristics of Geomaterials / Comportement Des Sols Et Des Roches Tendres. Taylor & Francis, 2003. http://dx.doi.org/10.1201/noe9058096043.ch25.

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Silvestroni, Laura, and Diletta Sciti. "Effect of Transition Metal Silicides on Microstructure and Mechanical Properties of Ultra-High Temperature Ceramics." In MAX Phases and Ultra-High Temperature Ceramics for Extreme Environments. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4066-5.ch005.

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The IV and V group transition metals borides, carbides, and nitrides are widely known as ultra-high temperature ceramics (UHTCs), owing to their high melting point above 2500°C. These ceramics possess outstanding physical and engineering properties, such as high hardness and strength, low electrical resistivity and good chemical inertness which make them suitable structural materials for applications under high heat fluxes. Potential applications include aerospace manufacturing; for example sharp leading edge parts on hypersonic atmospheric re-entry vehicles, rocket nozzles, and scramjet compo
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"83. Deformation Microstructure of Natural Plagioclase." In Fault-related Rocks. Princeton University Press, 1998. http://dx.doi.org/10.1515/9781400864935.276.

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Conference papers on the topic "Microstructure des roches"

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Agarwal, D. C., Michael Eckhardt, and Theo Hoffmann. "Repair of Alloy Components after Long Term High Temperature Exposure." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03475.

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Abstract Nickel base alloys are used in a variety of industries where severe corrosive conditions, whether it be aqueous corrosion or high temperature corrosion, are encountered. These alloys for high temperature service, known as superalloys, are utilized at a higher proportion of their actual melting point, approaching or even slightly exceeding 0.9Tm, where Tm is the melting point, than any other class of commercial metallurgical materials. In addition to aircraft, marine and industrial gas turbines, these high temperature alloys see service in space vehicles, rocket engines, submarines, nu
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Yuan, Juntao, Anqing Fu, Chengxian Yin, et al. "Corrosion of N80 Tubing Steel in Multi-thermal Fluid Used for Enhacing the Production of Heavy Oil." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13235.

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Abstract The multi-component thermal fluid generator is one of the usages of high-pressure combustion and jetting mechanism of rocket engine. The injected fuel (e.g. natural gas, diesel oil, crude oil) and oxidizer (e.g. air) are burned in the airtight combustor, and then generate high temperature and high pressure gas mixture containing carbon dioxide, nitrogen gas, oxygen and (superheated) steam. The thermal gas mixture is directly injected into the oil reservoir to extract heavy oil, which would cause serious corrosion of metallic tubing. In the present paper, the corrosion of N80 tubing st
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Meredith, Philip, and John Browning. "MICROSTRUCTURAL CONTROLS ON THERMAL CRACKING IN IGNEOUS ROCKS." In PRF2022—Progressive Failure of Brittle Rocks. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022pr-376046.

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Koo, Joseph, Holly Stretz, Jon Weispfenning, Zhiping Luo, and W. Wootan. "Nanocomposite Rocket Ablative Materials: Processing, Microstructure, and Performance." In 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference. American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-1996.

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Roberts, A. P., Dale P. Bentz, and Mark A. Knackstedt. "Correlating Microstructure to the Petrophysical Properties of Porous Rocks." In SPE Asia Pacific Oil and Gas Conference. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/37024-ms.

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North, L. J., C. Couves, A. I. Best, and J. Sothcott. "Relationships Between Resistivity Anisotropy and Microstructure of Volcanic Reservoir Rocks." In 76th EAGE Conference and Exhibition 2014. EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20141353.

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Saveliev, D. E., D. K. Makatov, and S. N. Sergeev. "MICROSTRUCTURAL FEATURES OF CHROMITITE AND ULTRAMAFIC ROCKS OF ALMAZ-ZHEMCHUZHINA DEPOSIT (KEMPIRSAY MASSIF, KAZAKHSTAN)." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. Perm State University, 2023. http://dx.doi.org/10.17072/chirvinsky.2023.230.

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The features of the macro- and microstructure of chromitites and ultramafic rocks of the Almaz-Zhemchuzhina deposit are described. It is shown that the formation of the mantle section of the massif occurred as a result of high-temperature plastic flow. The macrotexture and microstructural features of chromitites were also formed under the conditions of plastic flow of host dunites with scattered ore material. As a result of the two-phase flow, chromite was segregated with the formation of lenticular-banded accumulations, and in the central parts of the lenses, conditions were created for conta
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Prasad”, Manika, and Murli H. Manghnani. "Velocity and impedance microstructural anisotropy in reservoir rocks." In SEG Technical Program Expanded Abstracts 1996. Society of Exploration Geophysicists, 1996. http://dx.doi.org/10.1190/1.1826500.

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Xu, Tao, Shengqi Yang, Mike Heap, Chongfeng Chen, and Tianhong Yang. "Microstructural Damage-Induced Localized Fracturing of Brittle Rocks." In Fourth Geo-China International Conference. American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784480007.007.

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Siciliano, Fulvio, Douglas G. Stalheim, and J. Malcolm Gray. "Modern High Strength Steels for Oil and Gas Transmission Pipelines." In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64292.

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Increasing world demand for energy has resulted in plans to expand the oil and gas transmission pipeline infrastructure in many countries utilizing higher strength steels of API grade X70 and X80. Traditional transmission pipeline steels, up to grade X70, relied on a ferrite/pearlite microstructural design generated through traditional TMCP rolling of a niobium microalloyed C-Mn steel design. Increasing strengths up to X70 and X80 for transmission pipelines has resulted in a shift toward a ferrite/acicular ferrite microstructure designs. Traditionally, to generate the ferrite/acicular ferrite
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Reports on the topic "Microstructure des roches"

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Schlueter, E. M. Predicting the permeability of sedimentary rocks from microstructure. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/70737.

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Schlueter, Erika M. Predicting the transport properties of sedimentary rocks from microstructure. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/79095.

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Le Pape, Yann, and Mohammed Alnaggar. Microstructural Simulation of Ion-Irradiated Natural Rocks and Minerals. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1994706.

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Zhang, Yida, Pania Newell, Yunping Xi, et al. Time-dependent THMC properties and microstructural evolution of damaged rocks in excavation damage zone. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1897054.

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