Gotowe bibliografie tematyczne / Aluminium Granulaire

Spis treści

  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Części książek
  4. Streszczenia konferencji
  5. Raporty organizacyjne

Gotowa bibliografia na temat „Aluminium Granulaire”

Autor: Grafiati
Data publikacji: 24 maja 2025

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Aluminium Granulaire”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Aluminium Granulaire"

1

Wang, Kai, Shengqing Hu, Tianhao Wang, Wenlong Xie, Tong Guo, Fuguo Li i Rong Luo. "Microstructural Evolution and Mechanical Properties of 7075 Aluminium Alloy during Semi-Solid Compression Deformation". Crystals 12, nr 8 (10.08.2022): 1119. http://dx.doi.org/10.3390/cryst12081119.

Pełny tekst źródła
Streszczenie:
Aluminium alloys are becoming increasingly popular due to the demands for high-performance lightweight components, and semi-solid metal processing (SSM) is a technique for forming near-net-shape and complex components with far fewer defects associated with turbulent filling. The deformation mechanisms of semi-solid 7075 aluminium alloy were studied through the direct partial re-melting method using as-extruded billets. It is found that inter-granular and intra-granular deformation occur simultaneously during compression under the semi-solid condition; the deformation of solid primary α-Al grains can compensate for the shrinkage of inter-granular liquid and increase the integrity of shaped parts. The intra-granular deformation at the final stage of SSM can change the morphology of spherical solid grains and induces sub-grain boundaries.
Style APA, Harvard, Vancouver, ISO itp.
2

Zharov, M. V. "Analysis of technological processes of production of spherical powders and granules of NiAl nickel monoaluminide for the needs of domestic engine building". Voprosy Materialovedeniya, nr 3(111) (31.10.2022): 29–40. http://dx.doi.org/10.22349/1994-6716-2022-111-3-29-40.

Pełny tekst źródła
Streszczenie:
The article is devoted to the study of the features of various methods for obtaining granules of nickel aluminide NiAl. The problems hindering the widespread use of nickel aluminide NiAl in modern aircraft and engine construction are analyzed. It has been revealed that the main problems hindering the widespread industrial use of nickel aluminide NiAl are practically zero plasticity of the material during pressure treatment and difficulties in machining parts made of this material. However, this problem can be solved with the use of pellet metallurgy technologies, when by sintering the granular material, an almost finished product is obtained that requires minimal amounts of subsequent machining. Within the framework of the conducted studies, the quality criteria of the obtained granules were determined, which include the sphericity of the granules, the stability of the obtained dimensions of the granular material, the absence of defects in the form of pores, the absence of satellites on the surface of the granules, the presence of a finely dispersed dendritic structure of the granule material. Several methods of obtaining granules of nickel aluminide NiAl have been investigated from the point of view of obtaining the highest quality raw materials, namely: the method of spraying the melted billet with a high-temperature inert gas flow (gas atomization method), the method of centrifugal spraying of the melted electrode (PREP method), the method of centrifugation of the melt using a perforated crucible. It is determined that the optimal way to obtain a high-quality granulate of NiAl material is the method of centrifugal spraying of the melted electrode. In the course of the conducted research, it was proved that the main parameter of the process of centrifugal spraying of the melted electrode, affecting the quality of the obtained granules, their diameter and the value of the dendritic parameter of the microstructure of the granules, is not so much the current strength I as the rotation speed of the melted electrode n. The optimal values of the electrode rotation speeds are determined, which are n ≈ 15000-16000 revolutions per minute at a current strength I ≈ 1000-1500 A. A technology for obtaining high-quality NiAl material granulate has been developed and tested, which includes operations for obtaining initial NiAl blanks by self-propagating high-temperature synthesis, subsequent remelting of semi-finished products, heat treatment, separation of granules and subsequent granulation by the PREP method.
Style APA, Harvard, Vancouver, ISO itp.
3

Verbovenko, I. M., V. V. Kartashov i V. N. Rychkov. "SYNTHESIS NANOSTRUCTURED ALUMINUM OXIDE GRANULATE". Izvestiya Vuzov. Tsvetnaya Metallurgiya (Proceedings of Higher Schools. Nonferrous Metallurgy), nr 2 (26.02.2015): 30. http://dx.doi.org/10.17073/0021-3438-2014-2-30-34.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Delahaye, J., i T. Grenet. "Ageing in granular aluminium insulating thin films". Annalen der Physik 521, nr 12 (23.12.2009): 830–35. http://dx.doi.org/10.1002/andp.20095211205.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Delahaye, J., i T. Grenet. "Ageing in granular aluminium insulating thin films". Annalen der Physik 18, nr 12 (23.12.2009): 830–35. http://dx.doi.org/10.1002/andp.200910379.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Grenet, T. "Slow conductance relaxation in granular aluminium films". physica status solidi (c) 1, nr 1 (styczeń 2004): 9–12. http://dx.doi.org/10.1002/pssc.200303622.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Verbovenko, I. M., V. N. Rychkov i V. V. Kartashov. "Synthesis of nanostructured aluminum oxide granulate". Russian Journal of Non-Ferrous Metals 55, nr 3 (maj 2014): 229–33. http://dx.doi.org/10.3103/s106782121403016x.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Dobierzewska-Mozrzymas, Ewa, Andrzej Radosz i Piotr Biegański. "Optical properties of granular aluminum films". Applied Optics 24, nr 5 (1.03.1985): 727. http://dx.doi.org/10.1364/ao.24.000727.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Ming, Hu, Ren Xiaoxue, Sun Jianbo, Zhang Yunlong, Teng Chunfeng i Qiao Guang. "Fabrication and microstructural analysis of 3A21/7075 aluminum alloy cladding material based on impact jet solid–liquid compound casting". Composites and Advanced Materials 30 (1.01.2021): 2633366X2093448. http://dx.doi.org/10.1177/2633366x20934485.

Pełny tekst źródła
Streszczenie:
To solve thickness problem for high-strength aluminum alloy used as plastic mold materials and eliminate oxide film on the surface of aluminum alloy, a new compound casting, namely impact jet solid–liquid compound casting, was developed to fabricate 3A21/7075 aluminum alloy cladding material. Then, optical microscope (OM), electron-backscattered diffraction (EBSD) technique, and transmission electron microscope (TEM) together with energy-dispersive spectrometer (EDS) were used to analyze microstructure of 3A21/7075 aluminum alloy cladding material. The OM and EBSD results showed that the 3A21/7075 aluminum alloy cladding material was composed of 3A21 cladding layer, fusion zone (FZ), heat-affected zone, and 7075 matrix. The grain morphology on both sides of FZ had great differences. Moreover, the TEM and EDS results showed that the 3A21 cladding layer showed a bulk phase and lots of fine and dispersed granular phases, while the 7075 matrix appeared undetermined strip phases and amounts of fine and dispersed rod-like phases. Moreover, FZ existed a great deal of fine and dispersed granular phases and rod-like phases. The 3A21/7075 aluminum alloy cladding material could effectively solve the problems mentioned above and the in-depth analysis of microstructures of 3A21/7075 aluminum alloy cladding material was of great importance in terms of engineering value and academic significance.
Style APA, Harvard, Vancouver, ISO itp.
10

Bantu, Albert Kazadi Mukenga. "Characterization of Electrodeposited Cobalt/Copper (Co/Cu) Granular Multilayered Thin Films onto the Anodic Aluminum Oxide (AAO) Substrates". Nanomedicine & Nanotechnology Open Access 8, nr 2 (2023): 1–9. http://dx.doi.org/10.23880/nnoa-16000234.

Pełny tekst źródła
Streszczenie:
Herein, we report on the characterization of a series of cobalt/copper granular thin films alloys electrodeposited onto the previously pre-treated aluminum substrates, at different deposition time. And a systematic study of their structural and magneto-optical properties were investigated. The proper deposition potentials of Co, and Cu were obtained from the cyclic voltammetry method. It was observed that the easy axis direction of magnetization was parallel to the film plane for all films. The X-ray diffraction (XRD) results revealed that all films had a mixture of hexagonal close-packed (hcp) and face centered cubic (fcc) phases. The Scanning electron microscope images (SEM) and atomic force microscopy (AFM) showed some parallelepiped and ellipsoid shaped rods with an averaged dimension about of 600 nm length, 600 nm width and 200 nm thickness for a sample electrodeposited at room temperature. These rods are irregularly arranged. Their irregular arrangement could explain the large d-spacing in the sample at this temperature. The magnetic analysis of the granular thin films alloys showed the saturation magnetization increased and the coercivity decreased as the deposition time increased. These results showed that the changes in magnetic and structural properties of granular cobalt/copper alloys deposits were substantially depending on the variation of deposition time. Therefore, the change of the deposition time was seen to control the properties of the alloys deposits and hence their properties could be modified for desired purpose.
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Rozprawy doktorskie na temat "Aluminium Granulaire"

1

Calmels, Brian. "Granular aluminum as a building block of superinductances". Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASP027.

Pełny tekst źródła
Streszczenie:
Les circuits supraconducteurs font partie d'un groupe croissant de plates-formes matérielles qui ont démontré avec succès le traitement quantique de l'information, de la correction quantique des erreurs à l'amplification limitée quantiquement. Le développement de circuits quantiques pour le traitement de l'information nécessite la mise en œuvre de résonateurs micro-ondes à très faibles pertes et de petites dimensions. Une ressource importante pour la miniaturisation des résonateurs est l'inductance cinétique des supraconducteurs, Lk , qui peut dépasser l'inductance magnétique (« géométrique ») Lg de plusieurs ordres de grandeur dans les films supraconducteurs étroits et minces. En raison de sa densité de courant critique élevée par rapport aux jonctions Josephson à base d'aluminium, de sa résistance aux champs magnétiques externes et de sa faible dissipation, de sa cohérence élevée dans le domaine des micro-ondes et de sa non-linéarité intrinsèque, l'aluminium granulaire ou GrAl, constitué de nano-grains d'aluminium dans une matrice d'AlOₓ, est un choix intéressant pour les systèmes hybrides supraconducteurs fonctionnant aux radiofréquences. Dans cette thèse, nous explorons la possibilité d'utiliser le GrAl pour obtenir une inductance cinétique élevée avec les plus faibles pertes micro-ondes possibles. Bien que le GrAl ait été utilisé avec succès dans des bits quantiques tel le fluxonium, la réalisation de processeurs quantiques supraconducteurs nécessite une amélioration de leur cohérence de plusieurs ordres de grandeur. Cette tâche est compliquée par le fait que plusieurs types d'imperfections, à la fois microscopiques et macroscopiques, sont présents simultanément, en fonction de la conception du système, de la technologie de microfabrication et des matériaux. Nous montrons que la grande sensibilité des propriétés des couches minces de GrAl à la teneur en oxygène pendant le dépôt entraîne d'importants problèmes de reproductibilité et d'homogénéité, et nous apportons plusieurs solutions pour contourner ces difficultés inhérentes. Dans un second temps, nous caractérisons les propriétés supraconductrices de résonateurs en couches minces de GrAl (30nm) et étudions le meilleur compromis entre une inductance cinétique élevée et un matériau sans perte. En particulier, nous présentons des échantillons de résonateurs avec des inductances cinétiques allant jusqu'à 4,5 nH par carré avec des facteurs de qualité interne à faible nombre de photons de l'ordre de 10⁵. Nous étudions également les sources de bruit micro-ondes dans GrAl par le biais d'analyses spectrales du bruit
Superconducting circuits are part of a growing group of hardware platforms which successfully demonstrated quantum information processing, from quantum error correction to quantum limited amplification. The development of quantum circuits for information processing requires the implementation of ultra low-loss microwave resonators with small dimensions. An important resource for resonator miniaturization is the kinetic inductance of superconductors, Lk , which can exceed the magnetic (“geometrical”) inductance Lg by several orders of magnitude in narrow and thin superconducting films. Due to its large critical current density compared to aluminium based Josephson junctions, its resilience to external magnetic fields, and its low dissipation, its high coherence in the microwave domain and its intrinsic non-linearity, granular aluminum (or GrAl), self-assembled nano-grains of aluminium in a matrix of AlOₓ is an attractive choice for superconducting hybrid systems operating at radio-frequencies. In this PhD, we explore the possibility of using GrAl for obtaining superinductances with low microwave losses. Although GrAl has been successfully employed e.g. in fluxonium quantum bits, the realization of superconducting quantum processors still requires orders of magnitude improvements in coherence. This task is complicated by the fact that several types of imperfections, both microscopic and macroscopic, are concomitantly present, depending on system design, micro-fabrication technology, and materials. We show that the great sensitivity of GrAl thin film properties to oxygen content during deposition leads to important reproducibility and homogeneity issues, and we bring several solutions to circumvent these inherent difficulties. In a second time, we characterize the superconducting properties of GrAl thin films (30nm) resonators and investigate the best trade-off between having high kinetic inductance and a lossless material. In particular, we present resonator samples with kinetic inductances up to 4.5 nH per square with low photon number internal quality factors of the order of 10⁵. We also investigate the microwave sources of noise in GrAl through resonator frequency noise spectral analyses
Style APA, Harvard, Vancouver, ISO itp.
2

GADENNE, PETIT MIREILLE. "Proprietes de transport de couches minces d'or granulaire : absorption infra-rouge, effets dimensionnels". Paris 6, 1987. http://www.theses.fr/1987PA066385.

Pełny tekst źródła
Streszczenie:
Etude dans des milieux inhomogenes: couches minces d'or granulaires et cermets au-al::(2)o::(3) dans un regime isolant ou conducteur. Analyse des relations entre la morphologie, la conductivite en courant continu, la magnetoresistance, les proprietes optiques. Etude a l'aide de la theorie de champ moyen de bruggeman, de la fonction dielectrique optique. Mise en evidence a la percolation d'un cross-over de la concentration critique en fonction de l'epaisseur et d'un comportement critique caracteristique de l'absorption optique. Explication theorique par une correlation entre l'inverse du temps de relaxation des electrons de conduction et la tortuosite de la morphologie fractale
Style APA, Harvard, Vancouver, ISO itp.
3

Ergin, Guvenc. "Étude de la mouillabilité des particules granulaires par les alliages d'aluminium durant la filtration d'aluminium /". Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2006. http://theses.uqac.ca.

Pełny tekst źródła
Streszczenie:
Thèse (D.Eng.) -- Université du Québec à Chicoutimi, 2006.
La p. de t. porte en outre: Thèse présentée à l'Université du Québec à Chicoutimi pour l'obtention du doctorat en ingénierie. CaQCU Bibliogr.: f. 130-147. Document électronique également accessible en format PDF. CaQCU
Style APA, Harvard, Vancouver, ISO itp.
4

Cassiano, Gaspar Stefania. "Mise en forme par extrusion de supports de catalyseurs à base d'alumine et à microstructure multi-échelles : Effet de la composition granulaire et du liant sur les propriétés des matériaux". Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0056/document.

Pełny tekst źródła
Streszczenie:
L'empilement maîtrisé de granules de différentes tailles est un concept utilisé dans la plupart de procédés de mise en forme de matériau. Cette organisation hiérarchique est connue pour améliorer les propriétés d'écoulement à l'étape de mise en forme et les caractéristiques mécaniques du matériau final. Il est apparu intéressant d'appliquer ce concept à la mise en forme par extrusion de supports de catalyseurs avec des petites (2 µm) et grosses (19 µm) granules d'alumine poreuse dont l'assemblage est assurée par un liant traditionnel, la boehmite peptisée et neutralisée, ou par un liant plus original, le phosphate d'aluminium. L'étude vise ainsi à évaluer l'effet du liant et de la microstructure multi-échelles apportée par l'organisation hiérarchique des granules, sur les propriétés texturales et mécaniques des supports. Le contrôle des conditions de mise en forme et l'optimisation de la formulation des deux liants ont permis d'obtenir des extrudés à microstructure comparable entre la boehmite et le phosphate d'aluminium et variable en fonction de la proportion de petites. Cette population remplit les espaces entre les grosses granules de manière optimale entre 40 et 60% pds et les desserre aux plus fortes teneurs. La rétraction du liant au cours des traitements thermiques génère un volume de macropores qui est minimisé lorsque les petites granules comblent les espaces formés par les grosses. La macroporosité minimale conduit à de meilleures résistances à la rupture (par tests d'écrasement de type brésilien) et les matériaux les plus résistants sont ceux mis en forme avec le phosphate d'aluminium. Ce résultat est expliqué par la nature très cohésive de ce liant formée in situ par réaction de l'acide phosphorique avec la boehmite et la périphérie des granules d'alumine. Dans ce cas, la rupture a lieu au sein des granules différemment des supports mis en forme avec la boehmite peptisée à l'acide nitrique qui présentent une rupture à l'interface granule-liant. Les matériaux à microstructure multi-échelles présentent également une meilleure ténacité déterminée par des essais de flexion trois points. Le phosphate d'aluminium étant un liant non-poreux conduit à des supports avec une mésoporosité plus faible. Les nouveaux supports à microstructure multi-échelles semblent prometteurs pour des nombreuses applications catalytiques sensibles aux propriétés diffusionnelles et mécaniques
The controlled packing of different sized-granules is a concept widely used in most of the shaping material processes. This hierarchical organization is known to improve the flow properties during shaping and the mechanical characteristics of the finished material. It seemed interesting to apply this concept in order to prepare catalyst supports by extrusion containing small (2 µm) and large (19 µm) porous alumina granules assembled by a traditional binder, the peptized and neutralized boehmite, or by a more original, an aluminum phosphate binder. This study aims to investigate the effect of binder type and of the multiscale microstructure achieved by the packing of different granules size on textural and mechanical support properties. The control of kneading and extrusion conditions associated with the optimized binder formulation, conducted to similar microstructures with both binders according to the amount of each granular population. Small granules fills better the residual spaces between the larges between 40 and 60 wt.% and loosens them with strongest contents. Binder shrinkage during heat treatment generates a macroporosity which is minimized when small granules fills the voids formed by the larger ones. Minimal macroporosity leads to better crushing resistance (by Brazilian test) and the most resistant materials are the ones shaped with the aluminum phosphate. This result is explained by the high cohesive capacity of this binder obtained in situ by reaction of the phosphoric acid with the boehmite and the border of the alumina granules. In this case, the breakage takes place inside the granules differently from the supports shaped with the peptized boehmite by nitric acid which present a breakage at the granule-binder interface. Also, the multiscale microstructure materials present a better tenacity determined by three point bending. Aluminum phosphate being a non-porous binder, leads to supports with a weaker mesoporosity. The new multiscale microstructure supports seem interesting for several catalytic applications that are sensitive to diffusivity and mechanical properties
Style APA, Harvard, Vancouver, ISO itp.
5

Grünhaupt, Lukas [Verfasser], i A. V. [Akademischer Betreuer] Ustinov. "Granular aluminium superinductors / Lukas Grünhaupt ; Betreuer: A. V. Ustinov". Karlsruhe : KIT Scientific Publishing, 2019. http://d-nb.info/1197233202/34.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Murray-Chiasson, Audrey. "Étude de la relâche des inclusions lors de la filtration de l'aluminium liquide /". Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2002. http://theses.uqac.ca.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Verdu, Catherine. "Origines microstructurales et modélisation de l’Amorçage des fissures inter granulaires d'un alliage Al-Li-Cu-Mg-(Zr)". Lyon, INSA, 1991. http://www.theses.fr/1991ISAL0012.

Pełny tekst źródła
Streszczenie:
Le travail réalisé porte sur l'analyse des mécanismes microscopiques de la rupture inter granulaire des alliages Al. Li. Cu. Mg. (Zr). Par une méthodologie expérimentale originale, nous avons montré que la rupture dans ces alliages est liée à leur mode de déformation plastique particulier. En effet, on observe qu'une seule famille de plans. De glissement est principalement activée, en raison d'une texture cristallographique marquée, et du cisaillement des précipités Al Li. Il s'en suit des incompatibilités de déformation entre les grains qui entraînent une localisation de la déformation près des joints de grains et l'apparition d'un glissement sinueux très grossier. Les ruptures inter granulaires sont dues principalement à l'effet de l'interaction avec les joints de grains, des glissements rectilignes et sinueux. D'autre part la précipitation inter granulaire de la phase quasi-crystalline T et de la présence d'une zone dénudée en précipités Al Li, favorisent l'amorçage inter granulaire des fissures en raison des incompatibilités de déformation plastique entre la phase T2 et la matrice. Dans la dernière partie, nous développons un modèle d'amorçage pour les fissures inter granulaires à partir d'un empilement de dislocations contre les joints de grains. Ce modèle appliqué au cas des états revenus conduit à une vision assez claire de la rupture inter granulaire dans les alliages Al. Li. Cu. Mg. (Zr)
This work is concerned with the microscopic mechanisms of inter granular fracture in an Al. Li. Cu. Mg. (Zr) alloy. By means of an original approach, it has been shown that the fracture of this alloy is due to his specific plastic deformation mode. Indeed, only a one single slip system is mainly activated due to a very pronounced crystallographic texture and the shearing of Al Li precipitates. Therefore incompatible deformation occurs between contiguous grains. It induces a localisation of the plastic deformation near the grain boundaries and the initiation of a very coarsened and sinuous slip. Inter granular granular cracks are mainly due to the interaction of slips with grain boundaries. The crack initiation is also enhanced because of the plastically interaction stress field induced by incompatibility problems between: the T2 phase and the precipitate free zone. In the last part of this work an inter granular crack initiation model is proposed from the formation of dislocations pile ups against the grain boundaries. This model leads to à clear understanding of the inter granular fracture in the againg Al. Li. Cu. Mg. (Zr) alloys
Style APA, Harvard, Vancouver, ISO itp.
8

Yao, Xiangdong. "Modeling of microstructure formation during solidification /". [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18504.pdf.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Cadel, Emmanuel. "Etude de la ségrégation intra et intergranulaire de solutés par sonde atomique tomographique et microscopie électronique en transmission". Rouen, 2000. http://www.theses.fr/2000ROUES036.

Pełny tekst źródła
Streszczenie:
La ségrégation est une expression générale qui décrit un rassemblement d'atomes autour des défauts d'un matériau. La sonde atomique tomographique a été utilisée pour analyser à une échelle nanométrique la répartition des atomes près de défauts linéaires et plans. Le bore est ajouté en quantité infinitésimale dans l'alliage Fe-40Al (structure ordonnée B2) pour augmenter sa résistance mécanique à température ambiante. La répartition spatiale des atomes de bore dans les grains de l'alliage Fe-40Al montre que ces atomes ségrégent sur les parois d'antiphase et les fautes d'empilements. L'image d'une atmosphère de Cottrell a été visualisée pour la première fois à une échelle nanométrique. L'enrichissement en bore au cœur de la dislocation s'accompagne d'un appauvrissement en aluminium. Le bore se substituerait aux atomes d'aluminium. Cette ségrégation de bore sur les défauts de l'alliage Fe-40Al semble responsable de la stabilisation d'une nouvelle microstructure. L'utilisation conjointe de la microscopie électronique en transmission et de la sonde atomique a permis d'étudier sur plusieurs joints de grains, la relation entre leur chimie et leur structure. Un superalliage à base de nickel N18 dopé au bore constitue le support expérimental de cette étude. Le bore, le molybdène et le chrome ségrégent aux joints. Mais ces analyses démontrent que les joints dits généraux sont les plus riches en bore. Quand cet enrichissement en bore atteint et dépasse 5 atomes par nanomètre carré, une zone désordonnée de deux nanomètres d'épaisseur sépare toujours les précipités ordonnés et le plan du joint. Dans le plan d'un joint de grains, des atomes ségrégés forment des cellules parallélépipédiques. Cette répartition semble provenir de la position légèrement désorientée par rapport à une position de coïncidence, de ce joint.
Style APA, Harvard, Vancouver, ISO itp.
10

Antoun, Marc. "Vers une meilleure compatibilité ciment/mâchefer (MIDND) dans la formulation de matériaux cimentaires intégrant un ciment sulfo-alumineux". Thesis, Ecole nationale supérieure Mines-Télécom Lille Douai, 2019. http://www.theses.fr/2019MTLD0002.

Pełny tekst źródła
Streszczenie:
Dans un contexte accru d’économie circulaire et de valorisation des matières premières recyclées, les mâchefers d’incinération de déchets non dangereux (MIDND) constituent des déchets granulaires minéraux identifiés comme ressources renouvelables potentiellement valorisables dans la filière construction, notamment dans le domaine des matériaux cimentaires (type mortier/béton). Compte tenu de l'origine et de la nature des granulats de mâchefers, dans une finalité de concourir à une meilleure compatibilité mâchefer/ciment, il apparait essentiel en premier lieu de considérer des fractions minérales de mâchefers au mieux épurées par l’optimisation de l’enlèvement des métaux ferreux, non-ferreux et indésirables. En second temps, tenant compte des spécificités physico-chimiques résultantes des mâchefers, le choix de la base cimentaire constitue le second facteur prépondérant en sus de la nécessité de meilleure qualité de la fraction minérale de mâchefer. Le présent travail doctoral traite spécifiquement de l’apport de l’utilisation d’un ciment sulfo-alumineux dans le contexte de valorisation des mâchefers en matrice cimentaire. Des sables de mâchefers améliorés de fraction 0/2 mm ont été élaborés et utilisés pour l’étude. Dans une première partie, les résultats de formulation de mortiers cimentaires (ciment Portland, noté OPC / ciment sulfo-alumineux, noté CSA) à base de mâchefers en substitution volumique partielle du sable naturel (25, 50 et 75 %) et totale (100 %), mettent en évidence l’apport bénéfique du ciment CSA sur les résistances en compression par comparaison aux mortiers OPC. Une analyse expérimentale du réseau poreux des mortiers à 90 jours révèle que la frange de porosité supérieure à 50 nm est nettement plus faible pour les mortiers CSA. La thèse met en évidence un résultat majeur et pionnier : en interaction mâchefer, le niveau de basicité du milieu réactionnel joue un rôle prépondérant sur le potentiel de dégagement gazeux (hydrogène) après la mise en œuvre et avant la prise. Ce gaz impacte le niveau de porosité de la frange la plus grossière des mortiers durcis. La seconde partie concerne l’étude physique et microstructurale des mortiers soumis à l’attaque à l’eau pure ou à attaque sulfatique pour des substitutions volumiques de 50 et 100 %, avec les témoins pour référentiels. Les observations MEB sur les différentes matrices mettent en évidence une nette moindre sensibilité des mortiers mâchefer/CSA que des mortiers mâchefer/OPC, traduit par des porosités, fissurations et épaisseurs dégradées moindres
In a world where circular economy and the valorization of raw materials is taking a greater importance, municipal solid waste incineration (MSWI) bottom ash is identified as potentially renewable resource in the construction field and more specifically in cementitious materials like mortar and concrete. Given the origin of the bottom ash and in order to have a better cement/MSWI bottom ash compatibility, the fraction used was as refined as possible by removing ferrous, non-ferrous and unwanted materials. The choice of the cement used is a critical factor as well because it affects the quality of the end product since MSWI bottom ash has particular physicochemical properties. The work in this PhD studies the advantages of using a sulfo-aluminate cement to valorize an improved 0/2 mm fraction of bottom ash that has been developed to be used in cementitious matrices. The first part presents the results of the mortar sample mixes containing bottom ash in a substitution by volume of the standard sand. To better highlight the effect of using a sulfo-aluminate (CSA), CSA mortars containing bottom ash were compared to a Portland cement (OPC) mortars, with substitution rates of 25 %, 50 %, 75 % and 100 % were used. A study of the porosity was then conducted at 90 days ; it shows that the pores larger to 50 nm are remarkably less present for CSA mortars. This thesis brings forward a major and innovative result : the level of alkalinity of the mortar plays an important role in the release of hydrogen gas after mixing and before setting. The presence of these gases creates large porosity in the hardened mortar samples. The second part studies the physical and microstructural aspects of the mortars after being immersed in aggressive environments : pure water and sulfate solution. The substitution rates used in this experiment were 50 % and 100 % by volume as well as the reference mortars with no bottom ash. These samples were then studied in the SEM which showed that CSA/bottom ash mortars were clearly less affected than the OPC/bottom ash mortars. This was highlighted by the porosity, the cracking and the depth of degraded zone
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Części książek na temat "Aluminium Granulaire"

1

Kunchur, M., P. Lindenfeld i W. L. McLean. "Comparison of Localization Effects in Granular Magnesium and Granular Aluminum. Superlocalization?" W Springer Proceedings in Physics, 190–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73554-7_33.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Schellingerhout, A. J. G., H. M. Appelboom, J. A. Kokkedee, J. E. Mooij i T. M. Klapwijk. "A Strong Voltage Dependence on the Conductivity in Granular Aluminum". W Springer Proceedings in Physics, 74–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73554-7_13.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Berberich, P., i H. Kinder. "Electron-Phonon Interaction Near the Metal-Insulator Transition of Granular Aluminum". W Phonon Scattering in Condensed Matter V, 106–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82912-3_32.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Chen, Xinchang, Yue Zhou, Xini Chai, Muchun He i Hao Hua. "Algae Reactor: A 3D-Printed Façade Module for Cultivating Chlorella with Indoor CO2". W Computational Design and Robotic Fabrication, 154–63. Singapore: Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3433-0_14.

Pełny tekst źródła
Streszczenie:
Abstract This paper introduces a 3D-printed façade module that cultivates Chlorella with CO2 to purify indoor air for inhabitants and supply biomass. Algae produces oxygen and biomass and enhances carbon sequestration through photosynthetic processes. The idea of integrating algae into architecture as bioreactors has been developed in recent years. In this research, the façade module consists of a hybrid framework and an algae cultivation apparatus. The hybrid framework is composed of aluminum profiles, a 3D-printed skin, slim solar panels for the pump battery, and fasteners. The algae culture system regulates the photosynthesis inside the tubular liquid to interact with the indoor air. The module’s freeform skin with grooves is 3D printed with large-scale Fused Granulate Fabrication (FGF). The convoluted tube along the grooves is always ascendant to make the air travel slowly but smoothly from bottom to top. The prototype installed on the building façade enables the algae organisms in the bioreactor to grow stably. This project introduces biochemistry processes into sustainable design toward metabolism in the built environment.
Style APA, Harvard, Vancouver, ISO itp.
5

Peukert, Wolfgang, i Friedrich Löffler. "An Integrated Concept for the Application of High-Temperature Granular Bed Filters in the Aluminum Industry". W Gas Cleaning at High Temperatures, 385–99. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2172-9_25.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

K, Dr Madhukumar. "BEYOND LIMITS: A COMPREHENSIVE GUIDE TO MATERIALS PERFORMANCE AND THE POWER OF ALUMINUM ALLOY-BASED MMCs". W Materials for Advanced Applications, 207–31. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. https://doi.org/10.58532/nbennuraach14.

Pełny tekst źródła
Streszczenie:
The chapter explores the fascinating world of materials science, focusing on Aluminum Alloy-based Metal-Matrix Composites (MMCs). It begins by tracing the historical evolution of aluminum alloys, shedding light on their inherent properties and the crucial role of alloy compositions in shaping their characteristics. Progressing to the heart of innovation, advanced manufacturing techniques such as powder metallurgy and nanotechnology are dissected in granular detail. A comprehensive analysis of their applications in synthesizing Aluminum Alloy-based MMCs reveals the nuanced interplay of microstructural elements, underscoring their role in achieving superior mechanical and thermal attributes. The technical discourse extends to a detailed investigation of the enhanced mechanical properties, encompassing tensile strength, hardness, and fatigue resistance achieved through the strategic incorporation of reinforcing materials. Concurrently, a profound exploration into the thermal conductivity aspects elucidates the thermal management capabilities of Aluminum Alloy-based MMCs. Real-world applications in automotive, aerospace, and energy sectors are scrutinized through a lens of technical specificity, elucidating the adaptability and performance metrics of these composites in challenging environments. Navigating beyond the successes, the chapter meticulously addresses prevailing manufacturing challenges, offering insights into potential solutions and research directions.
Style APA, Harvard, Vancouver, ISO itp.
7

Haruyuki Yamamoto i Hirokazu Kunizawa. "Displacement and Rotation Measurements of Particles in Shear Zone". W Deformation Characteristics of Geomaterials. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-822-9-513.

Pełny tekst źródła
Streszczenie:
In this study, direct shear tests were performed by using the layered product of aluminum rods that a granular material is simplified to investigate the displacement and rotation of particles in shear zone. Then, the displacements each aluminum rods during the shear were observed by the technique of image measurement, and the local displacements and rotations are compared and examined with each particle size tests. From the observed results, it was found out that the tendencies of the shear stress- shear displacement relation and vertical displacement-shear displacement relation were similar to the behavior in the direct shearing of the actual sand material well in the deformed aluminum rods aggregate during the shear. A clear boundary plane can be seen in the distribution charts of the horizontal and vertical displacements of the tracking points in the adjacent area of the shear plane, and the formation of the shear band could be confirmed caused by the progress of the shear failure. The rotation of particles were active in the inside area of the boundary plane as compared with the un-dynamic particles in the outside area. Then, the width of the shear band was about 10-15 times of the average particle diameter. This result was consistent with the results measured in the direct shear tests of Toyoura sand (the average particle diameter is 0.19 mm) in the previous study.
Style APA, Harvard, Vancouver, ISO itp.
8

Ejezie Samuel U. "Engineering performance of soils of the humid tropical zone of Southern Nigeria". W Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2005. https://doi.org/10.3233/978-1-61499-656-9-337.

Pełny tekst źródła
Streszczenie:
The principal factor to which the observed engineering performance of the soils in the humid tropical zone of Southern Nigeria can be attributed has been determined to be the laterization phenomenon. During the process, oxides and hydroxides of iron and aluminum accumulate as the cementing agents binding the soil particles together. Clay-size particles aggregate into coarse grains giving the impression of a granular texture. The soil mass, in turn, correspondingly exhibits characteristics reflecting this texture when undisturbed in the field. When subjected to mechanical reworking or remolding however, such as in the process of pre-test sample preparation, the grains are disaggregated releasing a large quantity of fines. The laboratory test results therefore usually differ from predictions based on field observations.
Style APA, Harvard, Vancouver, ISO itp.
9

Kumar, P., R. Flores, L. Önnby i C. Sjöstedt. "Arsenic adsorption by iron-aluminium hydroxide coated onto macroporous supports: Insights from X-ray absorption spectroscopy and comparison with granular ferric hydroxides". W Arsenic in the Environment - Proceedings, 478–79. CRC Press, 2016. http://dx.doi.org/10.1201/b20466-222.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Salifu, Abdulai. "Fluoride removal from drinking water using granular aluminum-coated bauxite as adsorbent: Optimization of synthesis process conditions and equilibrium study". W Fluoride Removal from Groundwater by Adsorption Technology, 161–202. CRC Press, 2017. http://dx.doi.org/10.1201/9781351199995-5.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Aluminium Granulaire"

1

Hayner, George O., Colin S. Caldwell i G. R. Eidam. "Examination of Core Debris Samples from the Three-Mile Island Unit 2 Reactor". W CORROSION 1985, 1–13. NACE International, 1985. https://doi.org/10.5006/c1985-85120.

Pełny tekst źródła
Streszczenie:
Abstract Laboratory examination of one of the first core debris samples removed from the Three Mile Island Unit 2 (TMI-2) reactor was performed as part of a series of in-depth evaluations of postaccident core damage. Sample analysis has given new information on the quenched high- temperature reaction products formed during the TMI-2 loss-of-coolant accident. The rapid exothermic steam corrosion of Zircaloy and stainless steel cladding and localized uranium dioxideZircaloy reactions are considered the main processes. The sample was removed from a depth of three inches below the top surface of the rubble bed along the axial centerline of the reactor. The debris was composed primarily of granular ceramic fragments, resolidified metallic and "lava rock-like" materials. About one-fourth of the particles contained up to 20% open porosity and appeared to be high temperature reaction products from portions of two or more core components. Uranium dioxide fuel pellet fragments, oxidized cladding, or combinations with reaction product material were also identified. The sample contained free-flowing particles ranging from 1 cm to less than 45 micrometers, with an average size of 2 mm. Debris material was mainly composed of uranium, zirconium, and iron. Nickel, chromium, silver, tin, aluminum, and indium were also present in smaller amounts. All of these elements were present in the original core materials. The observed results are discussed with respect to published analytical predictions.
Style APA, Harvard, Vancouver, ISO itp.
2

Agarwal, D. C. "Chronology of Developments in Ni-Mo Alloys: the Last 70 Years". W CORROSION 2002, 1–17. NACE International, 2002. https://doi.org/10.5006/c2002-02119.

Pełny tekst źródła
Streszczenie:
Abstract Commercial quasi-binary Ni-Mo alloys containing molybdenum as the primary alloying element between 26 % and 30% have been widely used in many chemical processes since the late 1920's. The first major alloy of this family, Alloy B (UNS # N10001), was developed to be resistant to hydrochloric acid and was used in many applications such as in the distillation, condensation, and handling of this and other reducing acids such as sulfuric acid under 60% concentration. Many processes existed where use of catalysts like aluminum chloride led to HCl formation by hydrolysis thus requiring use of Ni-Mo alloys. However, a major problem when using alloy B in the as-welded condition was the decreased corrosion resistance of the heat-affected zone due to inter-granular precipitates consisting chiefly of carbides. This meant that the welded alloy B components had to be fully annealed and rapidly cooled prior to its use in severe corrosive environments. This presented a great handicap for wide usage of this alloy in some very large process vessels as demanded by the chemical process industry of the late 1960's and early 1970's. To solve this problem, alloy B-2 (UNS # N10665), which was a lower carbon, silicon & iron containing version of the alloy B, was introduced to the industry in 1975, thus allowing its use in the as welded condition. Even though the problem of HAZ corrosion / knife line attack was solved, another problem of fabricability and stress corrosion cracking in certain environments emerged, a phenomenon which was not fully addressed or understood at the time of lowering the iron content in alloy B-2 to 2% max with no minimums This paper addresses the fundamental work on understanding this phenomenon and solving it by precise chemistry control within the current alloy B-2 ASME/ASTM chemistry specifications without degrading its mechanical or corrosion properties. Since then other modifications of Ni-Mo alloys to solve both the fabricability and stress corrosion cracking problems have emerged such as alloy B3 (N10675), alloy B4 (N10629) and alloy B10 (N10624). This paper gives a detailed description of the various alloys in the Ni-Mo family along with some guidelines on fabrication.
Style APA, Harvard, Vancouver, ISO itp.
3

Chiu, Po-Hsun, Sophia Wang, Efrem Vitali, Eric B. Herbold, David J. Benson, Vitali F. Nesterenko, Mark Elert i in. "PARTICLE SIZE EFFECT IN GRANULAR COMPOSITE ALUMINUM∕TUNGSTEN". W SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2009. http://dx.doi.org/10.1063/1.3295057.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Wu, W. T., J. F. Liu, W. C. Chiu i W. H. Hsieh. "Flow Friction Characteristics of Aluminum Foam Matrixes". W ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56619.

Pełny tekst źródła
Streszczenie:
A universal correlation of friction characteristic was developed based on the measured pressure drop of air through foam matrixes. The pressure drops of seven types of aluminum foams with different porosities and pore densities were measured. The Reynolds number based on the equivalent spherical diameter of the foam ranged from 32.05 to 1289.32. The range of porosity was 0.87∼0.958. A universal empirical equation was developed to correlate the dimensionless pressure drop with the dimensionless flow velocity for all seven types of aluminum foams. The empirical correlation agreed well with experimental data. According to the empirical correlation and the measured data, the pressure drop introduced by foam matrixes was found to be much lower than that by granular matrixes at the same Reynolds number. The relationship between the friction factor and Re of foam matrixes is found to follow the trend of granular matrixes and can be classified into four regimes: Darcy-flow, inertial-flow, unsteady laminar-flow, and unsteady- and chaotic-flow regimes.
Style APA, Harvard, Vancouver, ISO itp.
5

Kabir, M. A., C. F. Higgs, M. R. Lovell, V. Jasti i M. C. Marinack. "Explicit Finite Element Simulation of Granular Flow in an Annular Shear Cell". W ASME/STLE 2009 International Joint Tribology Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ijtc2009-15215.

Pełny tekst źródła
Streszczenie:
Explicit finite element method modeling of granular flow behavior in an annular shear cell has been studied and presented in this paper. The explicit finite element method (FEM) simulations of granular flow in an annular shear cell with around 1633 particles were performed, where the inner wheel rotated at a very high speed and the outer disk remained stationary. The material properties of the particles and the outer wheel were defined as elastic steel whereas the inner wheel was elastic aluminum. In this investigation, the explicit FEM model mimicked granular flow in an experimental set up where the inner wheel was rotated at a speed of 240 rpm. The FEM results for shearing motion and solid fraction were compared with experimental results from a granular shear cell.
Style APA, Harvard, Vancouver, ISO itp.
6

Varanasi, Kripa K., i Samir A. Nayfeh. "Damping of Flexural Vibration by Low-Density Foams and Granular Materials". W ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48534.

Pełny tekst źródła
Streszczenie:
The damping of flexural vibration by introduction of a layer of low-density foam or powder into a structure is investigated. First, we report on experiments in which a layer of foam attached to an aluminum beam gives rise to significant damping at frequencies high enough to induce standing waves in the foam layer. Next, we provide a simple model for such vibration in which the foam is treated as a two-dimensional elastic continuum in which waves can propagate and find that the model is in good agreement with the experiments. Then the results of experiments in which aluminum beams are filled with a low-density powder are presented. The powder-filled beams exhibit behavior qualitatively like that of the foam-filled beams, but we find that the powder can be adequately modeled as an inviscid compressible fluid.
Style APA, Harvard, Vancouver, ISO itp.
7

Melanz, Dan, Martin Tupy, Bryce Smith, Kevin Turner i Dan Negrut. "On the Validation of a Differential Variational Inequality Approach for the Dynamics of Granular Material". W ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28804.

Pełny tekst źródła
Streszczenie:
The validation of a DVI approach for the dynamics of granular material focuses on comparing the experimental and simulation results of granular flow for two tests in the Chrono::Engine simulation environment. A macro scale validation was previously carried out through examination of granular flow in PBR reactors [1]. For this work, an aluminum rig was designed and fabricated to measure the flow rate of a given amount of micro scale granular material flowing due to gravity through a slit. The flow was initiated by using a Newport UMR8.25 translational stage and Newport LTA-HL precision linear actuator to open and close the slit steadily. Once the slit was open, the weight of the granular material was transmitted to the processor via a router connected to a Cooper LFS242 Tension/Compression Cell (Serial No. 286284) and graphed over time. A model of the flow meter was created in Chrono::Engine and the results were matched to experimental runs by changing the friction coefficient between particles. After the friction coefficient of the particles was determined to be 0.15, several experimental runs with differing slit sizes were run. These flow rates were compared to the weight versus time data that Chrono::Engine output for the corresponding slit size. Runs for gap sizes of 1.5mm, 2.0mm, 2.5mm and 3.0mm were performed with 0.0624 N of granular material, which amounted to approximately 39,000 spheres with 500μm in diameter. These gap sizes corresponded to an experimental flow rate of 1.41E-2 N/s, 2.59E-2 N/s, 4.00E-2 N/s, and 4.44E-2 N/s, and a simulated flow rate of 1.40E-2 N/s, 2.62E-2 N/s, 4.05E-2 N/s, and 4.48E-2 N/s, respectively. Based on this experiment, Chrono::Engine had less than a 2% error in calculating the flow rate of the granular material through a slit. In addition to comparing flow rates, the pile repose angle from the experimental runs was compared to the simulation results. A description of the GPU execution model along with its memory spaces is provided to illustrate its potential for parallel scientific computing. The equations of motion associated with the dynamics of many rigid bodies are introduced and a solution method is presented. The solution method is designed to map well on the parallel hardware, which is demonstrated by an order of magnitude reductions in simulation time for large systems that concern the dynamics of granular material.
Style APA, Harvard, Vancouver, ISO itp.
8

M, G., i VEENA S SORAGANVI. "Accelerated Granulation in Expanded Granular Sludge Bed EGSB Reactor Using Distillery Spent Wash with Chitosan and Aluminum sulphate". W Third International Conference on Advances In Civil, Structural and Environmental Engineering- ACSEE 2015. Institute of Research Engineers and Doctors, 2015. http://dx.doi.org/10.15224/978-1-63248-065-1-51.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Boechler, Nicholas, i Chiara Daraio. "An Experimental Investigation of Acoustic Band Gaps and Localization in Granular Elastic Chains". W ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87427.

Pełny tekst źródła
Streszczenie:
We assembled a chain composed of a periodic arrangement of aluminum and steel spheres encased in a 4-rod polycarbonate holder with tunable static precompression applied by means of a lever actuated system. To excite periodic oscillations we perturbed the chain with a piezo-stack actuator driven by both continuous and finite bursts of a sinusoidally varying periodic signal. The amplitude of the periodic signal ranged from linear to strongly nonlinear regimes. We report the tunability of the frequency range for the band gap edges as a function of the material parameters, chain geometry and stress conditioning. We analyze the data by means of force-time plot and Fast Fourier Transforms (FFT). We observe a dramatic reduction of the transmitted wave amplitude for harmonic excitations with fundamental frequencies within the gap. The application of both continuous and short bursts of perturbation allows for observation of different dynamic phenomena at selected frequency ranges (in particular close to the lower optical branch edge). By varying the amplitude of the dynamic excitation (and therefore the level of the nonlinearity present in the system) we seek localized discrete breathing modes and surface instabilities. The comparison between continuum theory, discrete numerical modeling and experiments show a qualitative agreement and provide fundamental understanding for future investigation and numerous engineering applications. The challenges and considerations involved with the construction of an experimental system capable of capturing and leveraging on the described phenomena will be detailed.
Style APA, Harvard, Vancouver, ISO itp.
10

Pereira, J. M., D. M. Revilock, C. R. Ruggeri, W. C. Emmerling i D. J. Altobelli. "Ballistic Impact Testing of Aluminum 2024 and Titanium 6Al-4V for Material Model Development". W Thirteenth ASCE Aerospace Division Conference on Engineering, Science, Construction, and Operations in Challenging Environments, and the 5th NASA/ASCE Workshop On Granular Materials in Space Exploration. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412190.135.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Raporty organizacyjne na temat "Aluminium Granulaire"

1

Cooper, Marcia. Shock and Reaction in Granular Bed of HMX-Aluminum Powders. Office of Scientific and Technical Information (OSTI), lipiec 2021. http://dx.doi.org/10.2172/1809919.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
Możesz być także zainteresowany rozszerzonymi bibliografiami na temat „Aluminium Granulaire” dla poszczególnych typów źródeł:
Artykuły w czasopismach Rozprawy doktorskie
Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!

Do bibliografii