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Dissertations / Theses on the topic 'Aluminium Metal Matrix Composites'

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1

Coleman, Sarah L. "The corrosion of metal matrix composites." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303434.

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2

Williams, J. R. "Corrosion of aluminium-copper-magnesium metal matrix composites." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239852.

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3

Furness, Justin Albert George. "Thermal cycling creep of aluminium based composites." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239618.

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4

Kang, Hyung-gu. "Locally reinforced squeeze cast aluminium alloy metal matrix composites." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294391.

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5

Perrin, Carl. "Wear of aluminium alloys and alluminium-based MMCs." Thesis, University of Sheffield, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294216.

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6

Whitehouse, Anne Frances. "Damage and failure of discontinuously reinforced aluminium composites during tensile deformation." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319543.

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7

Askew, John Russell. "Transient liquid phase bonding of Aluminium-based MMCs." Thesis, Brunel University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324651.

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8

Dibelka, Jessica Anne. "Mechanics of Hybrid Metal Matrix Composites." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50579.

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The appeal of hybrid composites is the ability to create materials with properties which normally do not coexist such as high specific strength, stiffness, and toughness. One possible application for hybrid composites is as backplate materials in layered armor. Fiber reinforced composites have been used as backplate materials due to their potential to absorb more energy than monolithic materials at similar to lower weights through microfragmentation of the fiber, matrix, and fiber-matrix interface. Composite backplates are traditionally constructed from graphite or glass fiber reinforced epoxy
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9

Abdullah, Abu. "Machining of aluminium based Metal Matrix Composite (MMC)." Thesis, University of Warwick, 1996. http://wrap.warwick.ac.uk/34661/.

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The machining of aluminium 2618 particulate reinforced Metal Matrix Composite (MMC) with 18 vol. % silicon carbide (SiC) using cemented carbide cutting tools has been undertaken. Two grades of cemented carbide inserts, uncoated K68 grade and coated KC910 grade (coated with TiC and A1203) having negative and positive rake angles (with and without chip breaker) have been used to machine this material in order to understand the machining process, tool failure modes and wear mechanisms. Turning tests in the speed range 15 - 10 m/min have been carried out at 0.2,0.4 and 0.6 mm/rev feed rates and 2
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10

Lewis, Christopher Alan. "The internal stress state and related microstructural changes during deformation of AlZrO←2 metal matrix composites." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338255.

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11

Alhashmy, Hasan. "Fabrication of Aluminium Matrix Composites (AMCs) by Squeeze Casting Technique Using Carbon Fiber as Reinforcement." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23120.

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Composites have been developed with great success by the use of fiber reinforcements in metallic materials. Fiber reinforced metal matrices possess great potential to be the next generation of advanced composites offering many advantages compared to fiber reinforced polymers. Specific advantages include high temperature capability, superior environmental stability, better transverse modulus, shear and fatigue properties. Although many Metal Matrix Composites (MMCs) are attractive for use in different industrial applications, Aluminium Matrix Composites (AMCs) are the most used in advanced appl
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12

Hambleton, Ruth. "The structure and properties of high temperature aluminium alloys and metal matrix composites." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266721.

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13

Li, Q. F. "Studies in the solidification behaviour of aluminium alloy/alumina metal matrix composites (MMC's)." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260364.

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14

Mohamad, Zain Nor Hashimah. "The utilization of Palm Oil Fuel Ash in Aluminium Metal Matrix Composites Materials." Thesis, Curtin University, 2019. http://hdl.handle.net/20.500.11937/78125.

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Palm oil Fuel ash (POFA) are utilize to produce high technology material in Metal Matrix Composites. Using stir casting method, the experiment resulted in an enforced Mechanical and tribological properties of the Aluminium 6061(AL6061) when fabricated with 5vol. % of POFA. The tensile strength is improved when applying POFA size of 76µm<d<150µm. Meanwhile, an increased impact, hardness and coefficient of friction(COF), with the least weight loss were reported when size <75µm POFA particles were used.
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15

Swaminathan, S. "Processing And Characterisation Of Bulk Al2 O3 p /AIN-Al Composites By Pressureless Infiltration." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/181.

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Al-Mg alloys were infiltrated into porous alumina preforms at temperatures greater than 950°C where significant amount of nitride forms in the matrix. The present work aims to obtain a process window for growing A1N rich composites over uniform thicknesses so that bulk fabrication of these composites could be carried out. Initial experiments were carried out in a thermo-gravimetric analyser (TGA) to establish suitable conditions for growing useful thicknesses. Al- 2wt% Mg alloy, alumina preforms of particle size 53-63μm and N2 - 2% H2 (5ppm O2) were used for the present study based on previous
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16

Swaminathan, S. "Processing And Characterisation Of Bulk Al2 O3 p /AIN-Al Composites By Pressureless Infiltration." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/181.

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Al-Mg alloys were infiltrated into porous alumina preforms at temperatures greater than 950°C where significant amount of nitride forms in the matrix. The present work aims to obtain a process window for growing A1N rich composites over uniform thicknesses so that bulk fabrication of these composites could be carried out. Initial experiments were carried out in a thermo-gravimetric analyser (TGA) to establish suitable conditions for growing useful thicknesses. Al- 2wt% Mg alloy, alumina preforms of particle size 53-63μm and N2 - 2% H2 (5ppm O2) were used for the present study based on previous
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17

Coelho, Reginaldo Teixeira. "The machinability of aluminium-based SiC reinforced metal matrix composite (MMC) alloy with emphasis on hole production." Thesis, University of Birmingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340966.

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18

Kolli, Sudhakar. "Joining of aluminum based particulate-reinforced metal-matrix composites /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487685204967.

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19

Smith, Joel Edmund. "Development of improved metal matrix composite via the control of interface and matrix microstructure." Thesis, University of Bath, 1995. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296330.

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20

Vuorinen, Esa. "Controlling infiltration when brazing P/M parts and during manufacture of aluminium metal matrix composites." Licentiate thesis, Luleå, 2004. http://epubl.luth.se/1402-1757/2004/82.

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21

Kothari, Mitul Arvind. "Welding of cast A359/SiC/10p metal matrix composites." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2699.

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Welding of metal matrix composites (MMCs) is an alternative to their mechanical joining, since they are difficult to machine. Published literature in fusion welding of similar composites shows metallurgical problems. This study investigates the weldability of A359/SiC/10p aluminum SiC MMC. Statistical experiments were performed to identify the significant variables and their effects on the hardness, tensile and bending strengths, ductility, and microstructure of the weld. Finite Element Analysis (FEA) was used to predict the preheat temperature field across the weld and the weld pool temperatu
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22

Drury, William James. "Quantitative microstructural and fractographic characterization of AE-Li/FP metal matrix composite." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/19958.

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23

Khan, Kirity Bhusan. "Processing And Characterization Of B4C Particle Reinforced Al-5%Mg Alloy Matrix Composites." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/182.

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Metal matrix composites (MMCs) are emerging as advanced engineering materials for application in aerospace, defence, automotive and consumer industries (sports goods etc.). In MMCs, a metallic base material is reinforced with ceramic fiber, whisker or particulate in order to achieve a combination of properties not attainable by either constituent individually. Aluminium or its alloy is favoured as metallic matrix material because of its low density, easy fabricability and good engineering properties. In general, the benefits of aluminium metal matrix composites (AMCs) over unreinforced alumini
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24

Khan, Kirity Bhusan. "Processing And Characterization Of B4C Particle Reinforced Al-5%Mg Alloy Matrix Composites." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/182.

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Metal matrix composites (MMCs) are emerging as advanced engineering materials for application in aerospace, defence, automotive and consumer industries (sports goods etc.). In MMCs, a metallic base material is reinforced with ceramic fiber, whisker or particulate in order to achieve a combination of properties not attainable by either constituent individually. Aluminium or its alloy is favoured as metallic matrix material because of its low density, easy fabricability and good engineering properties. In general, the benefits of aluminium metal matrix composites (AMCs) over unreinforced alumini
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25

Mendes, Luís Gonçalves. "Production of aluminium based composites reinforced with embedded NiTi by friction stir welding." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8764.

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Dissertação para a obtenção do grau de Mestre em Engenharia Mecânica<br>Aluminium alloys have been widely used in composite materials in order to promote an enhancement in its properties while reducing weight. As in the production of new composites with a significant difference in mechanical and thermo-physical properties fusion welding processes enhances the formation of undesired intermetallics. Those limitations have driven research on solid state technologies, such as Friction Stir Welding (FSW), for joining dissimilar materials. This study aimed to develop composites in AA 1XXX series al
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26

Famodimu, Omotoyosi Helen. "Additive manufacturing of aluminium-metal matrix composite developed through mechanical alloying." Thesis, University of Wolverhampton, 2016. http://hdl.handle.net/2436/620337.

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Laser melting of aluminium alloy - AlSi10Mg has increasingly been used to create specialised products in aerospace and automotive applications. However, research on utilising laser melting of Aluminium matrix composites in replacing specialised parts have been slow on the uptake. This has been attributed to the complexity of the laser melting process, metal/ceramic feedstock for the process and the reaction of the feedstock material to the laser. Thus an understanding of the process, material microstructure and mechanical properties is important for its adoption as a manufacturing route of Alu
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27

Tu, Zhiqiang. "Fabrication and Mechanical Properties of Carbon Fiber Reinforced Aluminum Matrix Composites by Squeeze Casting." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40523.

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Rapid modern technological changes and improvements bring great motivations in advanced material designs and fabrications. In this context, metal matrix composites, as an emerging material category, have undergone great developments over the past 50 years. Their primary applications, such as automotive, aerospace and military industries, require materials with increasingly strict specifications, especially high stiffness, lightweight and superior strength. For these advanced applications, carbon fiber reinforced aluminum matrix composites have proven their enormous potential where outstanding
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28

Park, Conrad. "Mechanical Performance and Structure-Property Relations in6061B Aluminum Metal Matrix Composites." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1547842396716777.

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29

Madgwick, Alexander. "Creep and damage in an A359 aluminium alloy/SiC metal matrix composite." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620311.

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30

Yıldırım, Uygar Güden Mustafa. "Investigation of quasi-static dynamic mechanical properties of functionally graded Sic-particulate reinforced aluminium metal matrix composites/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/makinamuh/T000470.doc.

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31

Clews, Justin David. "Ultrasonic consolidation of continuous fiber metal matrix composite tape." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 190 p, 2009. http://proquest.umi.com/pqdweb?did=1885474451&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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32

DONNINI, RICCARDO. "Metal matrix composite: structure and technologies." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/868.

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I compositi a matrice metallica sono materiali aventi elevate potenzialità di applicazione, i cui punti critici riguardano soprattutto le tecnologie di produzione e le lavorazioni alle macchine utensili. Un composito a matrice di titanio rinforzato con lunghe fibre unidirezionali in SiC, il Ti6Al4V-SiCf, è candidato per componenti di turbine aeronautiche soggette a medie temperature (fino a 600°C) per lunghi tempi di esposizione. Per questo ne sono state esaminate sia le reazioni di tipo microchimico, le quali accadono soprattutto nell’interfaccia fibra/matrice, sia le proprietà meccaniche.
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33

Muley, Aniruddha Vinayak. "Fabrication, characterization and tribological studies on aluminum based hybrid metal matrix composites." Thesis, IIT Delhi, 2016. http://localhost:8080/xmlui/handle/12345678/7090.

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34

Mitchell, Colin A. "A study of the powder processing, tribological performance and metallurgy of Aluminium-based, discontinuously reinforced metal matrix composites." Thesis, Edinburgh Napier University, 2002. http://researchrepository.napier.ac.uk/Output/3807.

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The principal objectives of the research reported in this thesis are: to determine the effect that sinter time has on the metallurgical behaviour of alumina-reinforced aluminium-606lmatrix composites; compare and assess the wear resistance of alumina and silicon carbide reinforced aluminium 6061-matrix composites, together with monolithic aluminium 6061 alloy; determine the effect that reinforcement particle size has on the wear resistance of aluminium 6061-matrix composites; identify the relative merits of two techniques for depositing copper coatings on to alumina reinforcements. Through inv
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35

Peng, Tao. "Processing and characterization of multi-walled carbon nanotube reinforced aluminium metal matrix composite." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6593/.

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Aluminium(Al) is widely utilised in the packaging, transportation, electrical and modern machinery sections because of its low density, high specific strength, excellent corrosion resistance, impressive electrical and thermal conductivity, abundance and recyclability. However, relatively low strength is the most significant challenge for aluminium to be applied in wider area. To solve this problem, carbon nanotube was projected as the most ideal reinforcement due to its incomparable specific strength and elastic modulus, exceptional electrical and thermal conductivity. It is assumed that carbo
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36

Yu, Hao. "Processing Routes for Aluminum based Nano-Composites." Digital WPI, 2010. https://digitalcommons.wpi.edu/etd-theses/367.

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The term "Metal Matrix Nano-Composites (MMNCs)" broadly refers to a composite system that is based on metal or alloy substrate, combined with metallic or non-metallic nano-scale reinforcements. The main advantages of MMNCs include excellent mechanical performance, feasible to be used at elevated temperatures, good wear resistance, low creep rate, etc. In the recent past, MMNCs have been extensively studied, especially the method of fabrication as the processing of such composites is quite a challenge. Though a variety of processing methods have been explored and studied over the years, none ha
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37

Yang, Xinliang. "Particle dispersion in aluminium and magnesium alloys." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/14437.

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High shear mixing offers a promising solution for particle dispersion in a liquid with intensive turbulence and high shear rate, and has been widely used in the chemical, food and pharmaceutical industries. However, a practical high shear mixing process has not yet been adapted to solve the particle agglomeration in metallurgy due to the high service temperature and reactive environment of liquid metal. In this study, the effect of high shear mixing using the newly designed rotor-stator high shear device have been investigated with both Al and Mg matrix composites reinforced with SiC particles
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38

Dadbakhsh, Sasan. "Mechanical engineering : the selective laser melting of metals and in-situ aluminium matrix composites." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/3840.

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Selective laser melting (SLM) is an additive manufacturing technique to produce complex three-dimensional parts through solidifying successive layers of powder materials on top of each other, from the bottom to top. The powder base nature allows the SLM to process a wide variety of materials and their mixtures and fabricate advanced and complicated composite parts. However, the SLM is a newly established process and seeks detailed scientific studies to develop new materials systems for the consumption of industry. These scientific studies are particularly important because of many issues assoc
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39

Dash, Lawrence Christopher. "The mechanism of corrosion and corrosion control of aluminum/graphite metal matrix composites /." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487588249825594.

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40

Hayes, Ian. "Microstructural characterisation and heat treatment refinement of a particulate reinforced aluminium metal matrix composite." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8077/.

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The purpose of this work was to determine the microstructure and secondary phase distribution in the TiB2 particulate reinforced Al-4.5Cu A205 alloy. This was extended to sand, investment and die casting techniques with the overall aim of optimising the existing solution heat treatment protocol for a variety of possible starting conditions. Additional work was aimed at determining a relationship between TiB2 additions and the observed globular microstructure. Hardness testing, DSC analysis, EDS and tensile testing were used to determine the effectiveness of heat treatment. It was found that a
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41

Forde, John. "The elevated temperature performance of cast aluminium alloys and the development of a cast aluminium-copper metal matrix composite." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6419/.

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The first phase of this thesis characterised the currently commercially available L169 and A201 aluminium alloys in terms of their response to testing at the operating parameters predicted for next generation aero-engine components. The L169 and A201 alloys were initially subjected to ageing trials at 205°C, specimens of both alloys were then fatigue tested at ambient temperature and at 205°C following 1000 hours exposure at 205°C. Detailed micrographic characterisation was undertaken to assess the impact of prolonged elevated temperature exposure on the alloy microstructure. Fractography was
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42

Stein, Julien. "AA5083 aluminium alloys reinforced with multi-walled carbon nanotubes : microstructure and mechanical properties." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20002.

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Cette étude a pour but de développer de nouveaux matériaux composites à matrice métallique renforcés par des nanotubes de carbone (CNT) et présentant des propriétés mécaniques améliorées. La majeure partie de ce travail a été réalisée en utilisant des CNT multi-feuillets synthétisés par déposition chimique en phase vapeur en tant que renforts et un alliage d'aluminium AA5083 comme matrice. Des composites CNT/AA5083 denses et homogènes ont été élaborés par le procédé de métallurgie des poudres suivi par une étape de mise en forme, l'extrusion. L'homogénéité de la dispersion des CNT à l'échelle
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43

CHEN, XIANG. "Fabrication and properties of particulate reinforced aluminum matrix composites by spontaneous infiltration." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2529525.

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Metal matrix composites has been developed over decades and gradually formed an important part in materials system. Nowadays in the popularization of metal matrix composites, in emphasis for composite materials is changing from a performance-driven to a cost-driven environment. Therefore it’s necessary and important to develop economical efficient techniques for producing metal matrix composites. Spontaneous infiltration (also called pressureless infiltration) is one of the most cost efficient liquid state techniques for manufacturing metal matrix composites, which uses adhesion forces between
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44

Uribe, Restrepo Catalina. "Process-dependent microstructure and severe plastic deformation in SiCp?? reinforced aluminum metal matrix composites." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4712.

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Discontinuously reinforced MMCs with optimized microstructure are sought after for exceptional high strain rate behavior. The microstructure evolution of a stir-cast A359 aluminum composite reinforced with 30 vol.% SiCsubscript p] after isothermal anneal, successive hot-rolling, and high strain rate deformation has been investigated. Quantitative microstructural analysis was carried out for the as-cast, annealed (470??C, 538??C and 570??C) and successively hot rolled specimens (64, 75, 88, and 96% rolling reductions). Selected composites were also examined after high strain rate deformation. X
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45

Lalet, Grégory. "Composites aluminium/fibres de carbone pour l'électronique de puissance." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2010. http://tel.archives-ouvertes.fr/tel-00538480.

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L'étude a pour objectif l'amélioration de la fiabilité des assemblages électroniques à travers la mise en œuvre de drains composites aluminium/fibres de carbone. Le travail a consisté à 1) modéliser, par la méthode des éléments finis, l'influence des propriétés thermiques et mécaniques du matériau de semelle sur l'assemblage életronique ; 2) élaborer (par frittage sous charge uniaxiale, frittage flash et extrusion à chaud) des matériaux composites aluminium/fibres de carbone ; et 3) lier les microstructures observées aux paramètres des procédés d'élaboration ainsi qu'aux propriétés thermiques
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46

Jiang, Xia. "Development of Al alloy composites by powder metallurgy routes." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:ee89b51e-386d-48c8-8f45-161e94490fb6.

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Particulate reinforced Al alloy composites (AlMCs) are recognized as important structural materials due to their lightweight, high modulus and strength and high wear resistance. In order to understand the effect of matrix, reinforcement and secondary processing techniques on the microstructure development and mechanical properties of AlMCs produced by powder metallurgy routes, Al alloy composites reinforced with three types of reinforcements by different secondary processing techniques have been produced and examined. Fabrication of Al or 6061Al alloy based composites reinforced with nano-size
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47

Bester, J. A. "The slurry erosive-corrosive wear of a selection of aliminium alloys, particulate reinforced aluminium metal matrix composites and a selection of steels." Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/18213.

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A range of aluminium alloys and particulate reinforced aluminium metal matrix composites has been tested in an apparatus which simulates the erosive-corrosive action of a slurry. The slurry consisted of silica sand suspended in either distilled water or synthetic mine water. Several steels were also tested in order to clarify certain concepts relating to the synergistic effects of erosion and corrosion. In general both the heat-treatable and non heat-treatable aluminium alloys exhibit lower slurry erosion rates with increasing hardness and work to fracture values. The slurry erosion rates of t
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48

Couch, P. D. "Fatigue and fracture of an aluminium-lithium based metal matrix composite at both ambient and elevated temperatures." Thesis, University of Birmingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499904.

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49

Karakas, Mustafa Serdar. "Effect Of Aging On The Mechanical Properties Of Boron Carbide Particle Reinforced Aluminum Metal Matrix Composites." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608944/index.pdf.

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Metal matrix composites (MMCs) of Al - 4 wt.% Cu reinforced with different volumetric fractions of B4C particles were produced by hot pressing. The effect of aging temperature on the age hardening response of the composites was studied and compared with the characteristics exhibited by the matrix alloy. Reinforcement addition was found to considerably affect the age hardening behavior. Detailed transmission electron microscopy and differential scanning calorimetry observations were made to understand the aging response of the composites. The low strain rate and high strain rate deformation beh
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50

DeMarco, James P. Jr. "Mechanical characterization and numerical simulation of a light-weight aluminum A359 metal-matrix composite." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4933.

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Aluminum metal-matrix composites (MMCs) are well positioned to replace steel in numerous manufactured structural components, due to their high strength-to-weight and stiffness ratios. For example, research is currently being conducted in the use of such materials in the construction of tank entry doors, which are currently made of steel and are dangerously heavy for military personnel to lift and close. However, the manufacture of aluminum MMCs is inefficient in many cases due to the loss of material through edge cracking during the hot rolling process which is applied to reduce thick billets
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