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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 105 for “"metal-matrix"”.
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Mechanics of Hybrid Metal Matrix Composites
… weights through microfragmentation of the fiber, matrix, and fiber-matrix interface. Composite backplates are traditionally constructed from graphite or glass fiber reinforced epoxy composites. However, continuous alumina fiber-reinforced aluminum metal matrix composites (MMCs) have superior …
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Deformation processed IMC-reinforced metal matrix composites
… utilizing TiB₂-reinforced near-gamma TiAl intermetallic matrix composites (IMCs) as a reinforcing entity within a commercially pure Ti matrix was investigated. IMCs are "ceramic-like" at ambient to moderate temperatures, and “metallic-like" in their deformation behavior above their …
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Transformation-superplasticity of metals and metal matrix composites
The work covers transformation superplasticity of metals, alloys and metal matrix composites. Fundamental studies of transformation superplasticity in unreinforced metals, which either deform plastically or by creep, form the basis of further investigations in metal matrix composites. Experiments …
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Damping Behavior in Ferroelectric Reinforced Metal Matrix Composites
Ferroelectric-reinforced metal matrix composites (FR-MMCs) show promise as high damping materials for structural applications. Most structural materials are valued based on their stiffness and strength; however, stiff materials typically have limited inherent ability to dampen mechanical or …
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Processing and Characterization of Light Metal Matrix Composites (LMMCS)
An initial bimetal magnesium/aluminium (Mg shell / Al core) macro-composite containing millimeter-scale unthreaded Al core reinforcement was fabricated via casting and hot-extrusion. This macro-composite was characterized in detail and conceptually developed through 3 stages. Initially, the Al …
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Machinability study of particle reinforced aluminium metal matrix composites
… machinability of particle-reinforced aluminium metal matrix composites, Comral-85 and DURALCANTM, has been studied. Continuous turning of round composite bars, using polycrystalline diamond (PCD) inserts has been selected as the test method. The test conditions included cutting speeds varying …
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An investigation into thermomechanical fatigue of metal matrix composites
… the thermomechanical deformation behavior of metal matrix composites. Experiments on unreinforced and SiC particulate reinforced Al 2xxx-T4 have been conducted under several mechanical strain-temperature phasing conditions. Based on stress range, substantial improvements in fatigue life have …
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In-situ Synthesis of Piezoelectric-Reinforced Metal Matrix Composites
The in-situ synthesis of piezoelectric-reinforced metal matrix composites has been attempted with a variety of target matrix and reinforcement materials using reaction synthesis and high energy ball milling. Zinc oxide (ZnO) and barium titanate (BaTiO₃) have been successfully synthesized within …
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Analytical model for force prediction when machining metal matrix composites
Metal Matrix Composites (MMC) offer several thermo-mechanical advantages over standard materials and alloys which make them better candidates in different applications. Their light weight, high stiffness, and strength have attracted several industries such as automotive, aerospace, and defence for …
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Plasticity of metal matrix composites reinforced with continuous alumina fibers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1997.
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Analysis of metal matrix composite structures using a micromechanical constitutive theory
… behavior of continuous-fiber-reinforced metal-matrix composite structures is examined using a micromechanical constitutive theory. Effective lamina and laminate constitutive relations based on the Aboudi micromechanics theory are presented. The inelastic matrix behavior is modeled by the …
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Additive Manufacturing of Aluminium-Metal Matrix Composite developed through Mechanical Alloying
… 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. …
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Structure and properties of titanium nitride-strengthened microlaminate metal matrix composites
… of titanium nitride strengthened microlaminate metal matrix composites. Reactive ion plated titanium nitride (TiN) was deposited onto titanium, nickel, and aluminum foils which were subsequently hot pressed to form microlaminate composites. The TiN volume percent was varied and its effect upon …
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Modeling and Synthesis of a Piezoelectric Ceramic-Reinforced Metal Matrix Composite
… heat for any piezoelectric ceramic-reinforced metal matrix composite system. Specifically, barium titanate (BaTiO₃), lead titanate (PbTiO₃), and zinc oxide (ZnO) piezoelectric ceramics have been modeled as dispersed particles shaped as spheres, prolate spheroids, and discs within a host of …
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Processing and properties of FeW amorphous particle strengthened metal matrix composites
Metal matrix composites have two important interfacial problems between the matrix and the reinforcement which can reduce its desirable mechanical properties. Chemical differences between the matrix and the reinforcement can lead to reactions and deterioration of the reinforcement. Secondly, …
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Mechanics of machining metal matrix composites: analytical modeling and finite element simulation
Metal matrix composites (MMCs) are commonly utilized materials in various industries, including applications in aerospace and automotive industries, due to their outstanding strength-to-weight ratio and wear resistance. In this thesis, a detailed understanding of MMC machining is accomplished …
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The role of precipitates on fiber/matrix interfaces in metal matrix composites
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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Centrifugal infiltration of particulate metal matrix composites : process development and fundamental studies/
… elongated runner, which was filled with a molten metal. Rotation of the runner created centrifugal force driving infiltration. To obtain high pressures, the metal head was controlled to be long and constant throughout the process. Threshold pressures required for infiltration of several packed …
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