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Teses / dissertações sobre o tema "Aluminium foam"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 6 de setembro de 2023

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1

McKown, Simon Thomas. "The progressive collapse of novel aluminium foam structures." Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414813.

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2

Ainsworth, Mark J. "Metal-foam interface stability during the filling of lost foam moulds with aluminium alloys." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1481/.

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Aluminium Lost Foam castings were made using gravity and counter-gravity filling techniques. Tensile strength was found to be most uniform in those castings which had been filled slowly from the bottom and where the metal front had remained stable throughout filling sequence. Pores containing carbon deposits were found on the fracture surfaces of all the castings made and this suggested that the defect was caused by polymer entrapment. A Saffman-Taylor instability was observed at the interface between Hg and a viscous glucose syrup which were contained in an analogue, that was used simulate th

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3

Idris, Maizlinda Izwana Materials Science &amp Engineering Faculty of Science UNSW. "Structural integrity of carbon fibre/aluminium foam sandwich composites." Awarded By:University of New South Wales. Materials Science & Engineering, 2010. http://handle.unsw.edu.au/1959.4/44722.

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This thesis focuses on closed-cell aluminium foams (ALPORAS and ALULIGHT) and on sandwich panels comprising these foams laminated with 2/2 twill carbon fibre (MTM56/0300) skins. The thesis experimentally and analytically investigates the response of foam-only panels (ALPORAS) to indentation with various indenter sizes and shapes; and also studies the behaviour of sandwich panels to contact damage caused quasi-statically or by impact. Quasi??static uniaxial compression testing is used to determine the mechanical properties of the foams (ALPORAS and ALULIGHT). It is revealed that the plastic co

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4

Curran, David Charles. "Aluminium foam production using calcium carbonate as a foaming agent." Thesis, University of Cambridge, 2004. https://www.repository.cam.ac.uk/handle/1810/252945.

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The current state of the art with regards to the production of metallic foams is reviewed, with melt-based processes identified as the most promising for cost-effective large-scale production. The potential for metal carbonates as an alternative to currently-used titanium hydride foaming agents is explored, with calcium carbonate identified as the most suitable. The influence of a range of material and processing parameters on the stability of metallic foams in the molten state is discussed, and current methods of controlling melt viscosity and surface tension are reviewed. Characteristic feat

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5

Styles, Millicent, and milli styles@anu edu au. "Characterisation of the flexural behaviour of Aluminium Foam Sandwich Structures." The Australian National University. Faculty of Engineering and Information Technology, 2008. http://thesis.anu.edu.au./public/adt-ANU20080813.170807.

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Aluminium foam has a range of properties that are desirable in many applications. These properties include good stiffness and strength to weight ratios, impact energy absorption, sound damping, thermal insulation and non combustibility. Many of these characteristics are particularly attractive for core materials within sandwich structures. The combination of aluminium foam cores with thermoplastic composite skins is easily manufactured and has good potential as a multifunctional sandwich structure useful in a range of applications. This thesis has investigated the flexural behaviour of suc

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6

Tan, Serdar. "Optimization Of Macrostructure In Aluminium Foams." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/2/1011196/index.pdf.

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Pure aluminium and aluminium-5wt % TiO2 aluminium foams were produced by powder metallurgy technique with the use of TiH2 as foaming agent. Two sizes of TiH2 were used: 20&micro<br>m and 3&micro<br>m. It has been confirmed that high level of compaction is the primary requirement in foaming. It was shown that hot swaging could be used as a method of compaction for foaming as it leads to values close to full density. Pure aluminium foamed at 675&deg<br>C and 725&deg<br>C leads to a volume expansion between 90-180 %. A model was developed for pure aluminium to explain the pore initiation and

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7

Styles, Millicent. "Characterisation of the flexural behaviour of aluminium foam composite sandwich structures /." View thesis entry in Australian Digital Theses Program, 2008. http://thesis.anu.edu.au/public/adt-ANU20080813.170807/index.html.

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8

Mustaffar, Ahmad Fadhlan Bin. "Irregular aluminium foam and phase change material composite in transient thermal management." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3338.

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Traction systems generate high loads of waste heat, which need to be removed for efficient operations. A new transient heat sink is proposed, which is based on salt hydrate phase change material (PCM). The heat sink would absorb heat during the short stationary phase i.e. at stations in which the PCM melts, a process accelerated by aluminium foam as it increases the rate of heat transfer within the PCM. When the train moves, the PCM is solidified via a forced convection stack. This creates a passive and efficient thermal solution, especially once heat pipe is employed as heat conduit. At the o

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9

Betts, Charles. "Structural integrity of open-cell aluminium foam sandwich panels for lightweight wing structures." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/17995.

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The overarching aim of this work was to concentrate on the mechanical modelling and experimental characterisation of novel open-cell aluminium foam core sandwich panels for prospective use as an airplane wing skin material. A repeating unit cell 2D FE model was created to assess the mechanical behaviour of infinitely long, regularly tessellated honeycomb core sandwich panels. An analytical model using Timoshenko beam theory was developed to predict the Young’s modulus of a hexagonal honeycomb core; there is good agreement between the two models. A microtensile test procedure was developed to d

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10

Kubilay, Ceylan. "Effect Of Tih2 Particle Size On Foaming Of Aluminium." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606897/index.pdf.

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ABSTRACT A study is carried out on the production of aluminum foams via powder processing. The study deals mainly with the effect of TiH2 particle size on the process of foaming. Mainly two TiH2 particle sizes were used<br>namely 27,5 &amp<br>#61549<br>m and 8,5 &amp<br>#61549<br>m. Foaming experiments were carried out at temperatures between 675oC &ndash<br>840oC. The viscosity of the system is adjusted by controlled addition of Al2O3. The study shows that choice of foaming agent size is influential in the foaming process. With the use of fine foaming agent, temperatures in excess of 800o

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11

Ribeiro, Daniel Tadeu de Carvalho. "Estudo da viabilidade técnica do processo de fabricação de espumas metálicas por reciclagem de cavacos da liga AA356." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263567.

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Orientador: Maria Helena Robert<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-11-08T18:35:02Z (GMT). No. of bitstreams: 1 Ribeiro_DanielTadeudeCarvalho_M.pdf: 21302819 bytes, checksum: 8a7a0a9d878be3b8ccb6833173c35aef (MD5) Previous issue date: 2011<br>Resumo: Este trabalho tem como objetivo desenvolver um método alternativo para a fabricação de espumas metálicas pela reciclagem de cavacos de Al e a caracterização mecânico-metalúrgica do produto obtido. O processo investigado envolve a espumagem de compacta

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12

Barbakadze, Archil. "Untersuchung des Einflusses der Gießparameter auf die Porosität bei Aluminium-Vollformgussteilen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-1725160.

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Beim fallenden Vollformguss mit Aluminiumlegierungen existiert wegen der vergleichsweise zu Gusseisen niedrigen Gießtemperatur, nahezu kein Gasspalt zwischen der Schmelze und dem Schaumstoffmodell. Durch die Variierung der Schmelzezufuhr konnten Vorteile des fallenden Vollformgießens gegenüber dem steigenden Vollformgießen verdeutlicht werden. Außer wirtschaftlichen Vorteilen erfordert das fallende Gießen deutlich geringere Formfüllzeiten, die sehr wichtig bei der Herstellung von Seriengussteilen sind. Eine Abhängigkeit der Porosität von der Schichtdicke der Schlichte wurde nachgewiesen. Bei d

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13

Siavashi, Kiavash. "The effect of casting parameters on the fluidity and porosity of aluminium alloys in the aost foam casting process." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3525/.

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The Lost Foam Casting process has been firmly established for Aluminium and ferrous alloys. This process offers many advantages over conventional casting processes but its full potential has yet to be reached due to the many defects introduced to the casting associated with decomposition of the foam pattern during mould filling. The foam pattern commonly used in this process is Expanded Polystyrene (EPS) which degrades to liquid and vapour byproducts. The liquid decomposition byproducts travel to the metal/mould interface, where the globules of liquid foam can become trapped against the coatin

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14

GUGLIELMOTTI, ALESSANDRO. "Tecnologia delle strutture cellulari." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1203.

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La porosità nei materiali utilizzati a scopi ingegneristici è spesso indesiderata per applicazioni strutturali. Tuttavia, la porosità offre notevoli vantaggi in termini di leggerezza, riduzione dei costi di produzione, smorzamento, isolamento termico e energia specifica. Inoltre, i materiali porosi sono ampiamente utilizzati in molteplici applicazioni industriali in diversi settori quali: automotive, aeronautico e navale. Negli ultimi anni, l’attenzione è stata rivolta a questa particolare classe di materiali in quanto combinano alte performance e basso peso. I materiali cellulari, generalment

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15

Delbin, Daniel. "Estudo da viabilidade de produção de esponjas da liga A2011 a partir do estado semi-solido." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263622.

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Orientador: Maria Helena Robert<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-11-08T18:37:47Z (GMT). No. of bitstreams: 1 Delbin_Daniel_M.pdf: 8551361 bytes, checksum: 770e9d00eeb959cc6e40cf3f314faa4e (MD5) Previous issue date: 2006<br>Resumo: Neste trabalho é estudada a viabilidade de produção de esponjas metálicas pela conformação de pasta tixotrópica da liga A2011, sobre camada de agente bloqueador (NaCl) posteriormente removido para formação da porosidade. Investiga-se a influência da temperatura de tra

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16

Bilík, Michal. "Návrh předního deformačního členu vozidla Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230252.

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This diploma thesis deals with Formula Student Impact Attenuator design. The aim of the thesis is to select suitable material and put it to the test of deformation. From results to suggest dimensions of Impact Attenuator and then perform its test. Next aim of the thesis is to perform FEM analysis of Anti-Intrusion plate and supporting rack.

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17

Rodrigues, Tiago Alexandre Morais. "Tubes reinforced with foams with density gradients." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17994.

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Mestrado em Engenharia Mecânica<br>Estudos na área dos materiais têm desempenhado um importante papel na indústria automóvel. Com o tempo, a utilização de materiais pesados tem vindo a ser substítuido por materiais mais leves como ligas de aço avançados, ligas de alumínio e compósitos. Quanto mais leves forem as estruturas, melhor o seu desempenho em termos de consumo de combustível e emissão de gases. No entanto, as estruturas necessitam de manter a sua integridade, assegurando a segurança activa e passiva dos ocupantes. Sendo assim, este estudo concentra-se em estudar o comportamento

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18

Yüksel, Sinan Güden Mustafa. "Crushing behaviour of aluminum foam-filled composite tubes/." s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/makinamuh/T000380.pdf.

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Thesis (Master)--İzmir Institute of Technology, İzmir, 2005.<br>Keywords:crushing, aluminum foam, foam filling, energy absorber, composite tubes. Includes bibliographical references (leaves. 93-96).

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19

Keltner, Noelle Joy. "Study of PocoFoam (TM) as a heat exchanger element in cryogenic applications." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51774.

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Superconductors present great potential for weight reduction and increased power delivery when compared to traditional copper power delivery systems, but current systems require cryogenic cooling systems. Traditional superconductor cooling systems consist of helium cooled by helical heat exchangers made of Oxygen Free High thermal Conductivity (OFHC) copper tube. The helium is cooled by bulky heat exchangers consisting of OFHC copper coils wrapped around a cryogenic cooler heat sink for heat transfer into the working fluid. Metal foams have recently been studied in a variety of heat transfer a

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20

Merrett, Richard Peter. "Dynamic response of aluminium foams." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10739.

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This thesis presents the results of an investigation into the response of two types of aluminium foam (ALPORAS and Cymat) to quasi-static, impact, and blast loading. The design of experiments and experimental results are reported.

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21

Akseli, Ilgaz Güden Mustafa. "The application of aliminum foam for the heat and noise reduction in automobiles/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/makinamuh/T000343.pdf.

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Thesis (Master)--İzmir Institute Of Technology, İzmir, 2005.<br>Keywords: Aluminum matrix composites, thermal conductivity, sound insulation, foam, metal matrix composites, aluminum foam. Includes bibliographical references (leaves. 77-81).

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22

Zaragoza, Gael. "Aluminium foams for heat transfer applications." Thesis, University of Sheffield, 2012. http://etheses.whiterose.ac.uk/3882/.

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Open cell metal foams show great potential as a heat exchangers, due to their permeability to fluids and the high conductivity of the metallic network. In this study, aluminium foams were produced using the replication technique with NaCl, flour and water used to create the preform. The samples produced included both uniform pore sizes and examples where different pore sizes were created in different parts of the sample as well as these, samples made commercially by a similar technique (Corevo foams) and by an investment casting process (Duocel foams) were examined. A bespoke rig was designed,

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23

Joesbury, Adam Michael. "New approaches to composite metal joining." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/10009.

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This thesis explores new methods for achieving load-carrying joints between the dissimilar materials of continuous fibre reinforced polymer matrix composites and structural metals. The new composite-to-metal joining methods investigated in this work exploit the metal-to-metal joining techniques of arc micro-welding, resistance spot welding, and metal filler brazing, to form novel micro-architectured metal adherends that can be used for enhanced composite-to-metal joining. Through a combination of equipment instrumentation and metallographic inspection of fabricated prototype joints, understand

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24

Kavi, Halit Güden Mustafa. "Investigation of compression mechanical behaviour of aluminum foam filled metal tubes/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/makinamuh/T000488.pdf.

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25

Nammi, Sathish Kiran. "Finite element analysis of aluminium foams under compressive loading." Thesis, University of Bolton, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.573674.

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This thesis is concerned with developing numerical models to predict the mechanical behaviour of closed-cell aluminium (AI) foams under uniaxial loading. Many of the existing models produce responses which are very stiff initially and fall sharply after an initial peak (Type-II response). In contrast, the real Al foams exhibit a reduced stiffness and give a flat-topped curve in the neighbourhood of peak-load (Type-l response). Thus, the weakness of the existing unit-cell models in relation to the two qualitatively different load displacement responses was identified. A link has been establishe

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26

Senior, Faye. "The development of aluminium foams for enhanced heat transfer." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/18317/.

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A novel replication technique for the production of open-celled aluminium foam has recently been devised and is undergoing commercial development by the company Constellium. The technique allows close control over the pore size and shape; a feature that is uncharacteristic of metal foam production methods in general and control to such an extent is unprecedented. The method provides an excellent pathway for the exploration of pore geometry/heat transfer behaviour relations, which is the objective of this study. This also aligns with the commercial goals of Constellium as heat transfer applicat

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27

Santosa, Sigit P. "Crash behavior of box columns filled with aluminum honeycomb or foam." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10484.

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28

Bartolucci, Stefano 1976. "Commercial application of aluminum honeycomb and foam in load bearing tubular structures." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28868.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004.<br>Includes bibliographical references.<br>Small dimension engineering tubular structures subjected to a complex load system are designed like hollow circular shells. For minimum weight design, the ratio between the shell radius and the thickness has to be as large as possible, but its maximum value is limited by the onset of local buckling. Tubular natural structures subjected to a complex load system have often an outer shell of solid material supported by a low density, compliant core,

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29

Mutsakatira, Innocent. "The effect of the surface condition of Aluminium ingot (AA3003) during roll bonding with clad Aluminium alloy (AA4045) to form an Aluminium brazing material." Master's thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/32875.

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Hulamin is the leading producer of aluminium products in South Africa. One of the products made at Hulamin is the aluminium brazing sheet. The aluminium brazing sheet is made from two aluminium alloys, AA3003 and AA4045. The main alloying element in the 3XXX series alloy is manganese and the main alloying element in the 4XXX series alloy is silicon. An aluminium brazing sheet is manufactured during an industrial process called “accumulative roll bonding”, where AA4045 is termed “the clad” and AA3003 “the core”. The two materials are stacked together with the core sandwiched between two clad la

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30

Martinec, Pavel. "Návrh bezpečnostních prvků vozidla Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229847.

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The subject of this thesis is to design safety components for the Formula Student car. The aim is to handle the driver’s safety proposals regarding the competition rules. The main point of interest is focused on the impact attenuator issue, which is designed and tested by appropriate method. In addition are designed other security features such as seat belts, seat belts installation and driver equipment are.

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31

Velay, Xavier. "Analysis of the conform process : a specific form of aluminium extrusion." Thesis, Bournemouth University, 2004. http://eprints.bournemouth.ac.uk/432/.

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Since the Conform process was patented 30 years ago, there have only been approximately 200 machines sold worldwide. Given that Conform competes economically with conventional extrusion and is also reported to be a more energy efficient process, it is surprising that the use of Conform is not more widespread in today's increasingly environmentally conscious and high-production focussed world. One explanation for this is likely to be due to the fact that there is still limited knowledge of the thermo-mechanical behaviour of the workpiece during extrusion. Furthermore, for the aluminium industry

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32

Al, Tenaiji Mohamed. "Characterisation of aluminium matrix syntactic foams under static and dynamic loading." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/18857/.

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In this study, aluminium matrix syntactic foams reinforced with several types of ceramic micro-sphere were produced by pressure infiltration. The mechanical properties of a range of aluminium matrix syntactic foams were investigated in order to optimise the composition and structure to find the best configuration in terms of high energy absorption capability, and to validate the finite element predictions against the corresponding experimental results. Initially, the compressive behaviour of six different types of aluminium matrix syntactic foam was evaluated. It was shown that the size of the

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33

Mariani, Laura Leana. "Electroless coatings on titanium hydride for use in the production of aluminum foam." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99525.

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Aluminum foam is a porous form of solid aluminum. One method of producing aluminum foam is the powder metallurgy process. Aluminum powder is mixed with a foaming agent, generally titanium hydride (TiH2), and pressed to form a compact. In the foaming process, the compact is heated and hydrogen gas is released from the agent to form bubbles within the surrounding aluminum. However, there is a significant gap between the onset of the decomposition temperature of the TiH2 (400°C) and the melting point of aluminum (660°C). The hydrogen gas evolution begins while the aluminum is still solid, creatin

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34

Toksoy, Ahmet Kaan Güden Mustafa. "Quasi-static axial compression behavior of empty and polystyrene foam filled aluminum tubes/." [s.l.]: [s.n.], 2003. http://library.iyte.edu.tr/tezler/master/makinamuh/T000246.rar.

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35

Vendra, Lakshmi Jyotshna. "Processing and Characterization of Aluminum-Steel Composite Metal Foams." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-05282008-163908/.

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Composite Metal Foam (CMF), a new material belonging to the class of advanced cellular and porous materials, has been successfully processed using Gravity Casting technique for the first time at NC State University. This material comprises of steel hollow spheres and a solid Aluminum alloy matrix. The complete characterization of the material included mechanical testing such as monotonic compression, compression-compression fatigue, micro hardness, nano hardness and higher strain rate compression. The energy absorption behavior of the material under static compression has been studied extensiv

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36

Elbir, Semih Güden Mustafa. "Preparation and characterization of aluminum composite closed-cell foams/." [s.l.]: [s.n.], 2001. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000022.pdf.

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37

Zhang, Chuan. "Aluminum foams composite : elaboration and thermal properties for energy storage." Thesis, Troyes, 2017. http://www.theses.fr/2017TROY0015/document.

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L'objectif de cette thèse est d'étudier et d'optimiser le processus de fabrication des mousses métalliques et le comportement thermique du matériau de la mousse d'aluminium/matériau de changement de phase (MCP) par des méthodes expérimentales et numériques. Le processus d’élaboration de la mousse d’aluminium à pore ouvert est développé et optimisé pour contrôler précisément les paramètres de fabrication. Deux modèles de mousse d'aluminium à haute porosité (MAHP)/MCP composite et à faible porosité (MALP)/MCP composite sont établis pour la simulation numérique. En simulant le processus de fusion

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Klinter, Andreas. "Wetting behaviour of aluminum alloys on ceramic substrates and its effect on the stability of aluminum foams." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92344.

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Bernardo, Franco. "Sviluppo di procedimenti di saldatura LASER e LASER arco per pannelli AFS (Aluminum Foam Sandwich)." Doctoral thesis, Universita degli studi di Salerno, 2010. http://hdl.handle.net/10556/207.

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2008 - 2009<br>La tesi presenta l’attività di ricerca condotta presso il laboratorio LASER del centro di ricerca ENEA - Trisaia (MT) per lo sviluppo di un procedimento di saldatura, ancora poco diffuso a livello industriale, che è la saldatura ibrida LASER-arco. Inoltre, la novità del lavoro riguarda anche i materiali oggetto di indagine consistenti in estrusi di lega di alluminio, saldati a formare una struttura portante, a cui sono stati collegati pannelli sandwich di schiuma di alluminio (AFS), con una giunzione continua tale da garantire un collegamento strutturale. Considerate alcune prob

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Hardwicke, Canan Uslu. "Processing and properties of Ti-6A1-4V hollow sphere foams from hydride powder." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/19650.

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Grönvall, Sarah. "Jugendornamentik feat. Vectorestetik : Utemöbler för Berga Form AB." Thesis, Linköping University, Carl Malmsten - Centre for Wood Technology & Design, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6998.

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<p>Denna rapport presenterar det examensarbete på 10 poäng jag gjorde på möbeldesignprogrammet vid Carl Malmsten CTD våren 2006. Syftet med denna rapport är att beskriva och klargöra processen av detta examensarbete samt formgivningen av produkterna som styrts av mitt koncept. Rapporten grundar sig på dokumentation från processens gång och jag har valt att redovisa mitt arbete i denna rapport i fyra kapitel. Den första inledande delen beskriver bakgrunden till projektet, den andra redovisar insamlingsetappen i form av bild, skissmaterial och konceptbeskrivning, den tredje handlar om skissetapp

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Simpson, Ronald James. "The use of chills as a means of influencing solidification in lost foam cast aluminum alloy A356." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28662.pdf.

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Bonaldi, Patrik Oliveira. "Obtenção de espuma de alumínio através do processo de Metalurgia do Pó e propriedades mecânicas de estruturas sanduíche." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/75763.

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Espumas de alumínio são materiais de estrutura porosa que combinam as propriedades de materiais celulares com as dos materiais metálicos. A espuma metálica, com porosidade acima de 70%, pode ser obtida principalmente pela via “metal líquido” e via “metalurgia do pó”. Este trabalho visa uma contribuição para o desenvolvimento da produção de espumas de alumínio via Metalurgia do Pó (MP), inédita no Brasil. Busca-se estudar e definir os parâmetros para produzir a espuma de alumínio e estruturas sanduíche através do processo de MP e por fim conhecer o seu comportamento mecânico. É proposta, também

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Proa, Flores Paula Mercedes. "Aluminium foams fabricated by the PM route using nickel- coated titanium hydride powders of controlled particle size." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92343.

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Ibrahim, Ahmed Hamed. "Effect of material and processing parameters on the morphology of aluminium foams produced by the PM route." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976253623.

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Gaytan, Guillen Sara Marisela. "Additive layer manufacturing of TI-6AL-4V by electron beam melting from powder particles solid, mesh and foam components study /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Jinnapat, Apichart. "The manufacture and characterisation of aluminium foams made by investment casting using dissolvable spherical sodium chloride bead preforms." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588085.

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This project sought to design, implement and evaluate a process for the manufacture of porous, spherical salt beads, in order to enhance the reproducibility in mechanical properties of open cell aluminium foams made by a replication-based manufacturing technique. Porous beads were favoured in order to increase the dissolution rate of the salt from the preform, thereby making the manufacture of large foam parts practical. Salt beads were made by a novel method using fine NaCI powder, flour and water to make a paste that was subsequently disintegrated into large beads by mechanical stirring in o

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Abdulla, Taha. "The effect of pulsed bipolar plasma electrolytic oxidation coatings on the mechanical properties of open cell aluminium foams." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/3806/.

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Metal foams have attracted wide range of interest from researchers and industries because of their unique combinations of properties. Of particular interest, open cell metallic foams have good weight-specific mechanical properties, and improvements could make these materials highly desirable for lightweight structural and energy absorption applications. These properties could potentially be increased for open cell foams by treatments affecting their large surface areas. The effect could be very significant, especially when the dominant deformation mode is bending of the foam struts, as the coa

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Comeau, Christian R. "Critical Erosion/Corrosion Piping Wall Thicknesses Under Static and Fatigue Stress Conditions According to ASME Guidelines." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34057.

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The purpose of this project was to show the updated procedures and to make additions to the computer program called Tmin designed by E. I. DuPont De Nemours and Company. This program is used as a screening tool for determining the largest of the minimum pipe-wall thicknesses in a piping system. This project involved several additions that will be released in the next version of the Tmin computer program. The first major additions to be implemented are four alternating Stress-to-Number of cycles curves: Aluminum 1100, Aluminum 3003-0, Aluminum 6061-T6, and Nickel 200. In addition, procedur

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ROCHA, ROSA M. da. "Obtencao e caracterizacao de ceramicas no sistema Si-Al-O-N-C empregando pirolise de misturas de polissiloxano e cargas." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11187.

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Made available in DSpace on 2014-10-09T12:49:18Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:01:20Z (GMT). No. of bitstreams: 1 09621.pdf: 29120771 bytes, checksum: 09052cbfc1e575071c4639bed85d4176 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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