Global ETD Search
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 230 for “"and thermal properties."”.
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Acoustic and Thermal Properties of Recycled Porous Media
… porous materials from tyre shred residue and polyurethane binder for acoustic absorption and thermal insulation applications. The resultant materials contains a high proportion of open, interconnected cells that are able to absorb incident sound waves through viscous friction, inertia …
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Magnetic and thermal properties of metallic antiferromagnetic materials
… due to their insensitivity to external fields and faster dynamics compared to typical ferromagnetic materials. Although they have these advantages, studies of their order parameter is difficult to perform because of the lack of net magnetization. The linear magneto-optic Kerr effect (MOKE) is …
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Processing and thermal properties of molecularly oriented polymers
… can be oriented such that some of their physical properties in the oriented direction are enhanced. For over 50 years polymer orientation and processing has been extensively studied to improve the mechanical properties of polymers. In more recent history the anisotropic thermal properties of …
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Electronic, Optical, and Thermal Properties of Reduced-Dimensional Semiconductors
… attention because of their new physics and exotic properties, which are of great interests for fundamental science. More importantly, the manipulation and engineering of matter on an atomic scale yield promising applications for many fields including nanoelectronics, nanobiotechnology, …
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Structural and thermal properties of graphene - boron nitride superlattice
Interfaces and their atomic structure play a key role in two–dimensional materials such as the graphene - boron nitride (C-BN) superlattices. C-BN superlattices with regular ordered subdomains of graphene and boron nitride have recently been synthesized and characterized as a potential candidate …
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Synthesis, characterization, and thermal properties of ceramic-fullerene thin films
Thin films containing ZrO2 and dispersed fullerenes have been synthesized using codeposition processing, and the role that dispersed fullerenes play in the thermal behavior of co-deposited films has been characterized. The presence of C60 within the films has been confirmed using a new application …
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Equilibrium vacancy concentration measurements and thermal properties of solid krypton
Simultaneous length and x-ray lattice parameter expansion measurements have been made on three 6 mm diam cylindrical specimens of 99.995% purity krypton. The specimens were prepared and held unconstrained in a rigid-tail cryostat in which specimen temperatures could be precisely controlled. The …
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Engineering Optical and Thermal Properties of Two Dimensional Metal Dichalcogenide Monolayer
… State University Theses Materials Science and Engineering.
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Modeling and control of geometric and thermal properties in arc welding
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Present and early star formation : a study on rotational and thermal properties
We investigate the rotational and thermal properties of star-forming molecular clouds using hydrodynamic simulations. Stars form from molecular cloud cores by gravoturbulent fragmentation. Understanding the angular momentum and the thermal evolution of cloud cores thus plays a fundamental role in …
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High-resolution spatial profiling of structural and thermal properties of anode materials
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Structural and Thermal Properties of Ignition Resistant Coatings for Reusable Rocket Engines
… failures. The study details the fabrication and characterization of the bulk material for use in a thermomechanical model to predict spallation during a flight cycle. From experimentation, the coating has been determined to be a three-phase metal-ceramic composite composed of nickel, cerium …
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Mechanical and thermal properties of polypropylene/clay roof tiles waste (PP/CRTW) composites
… at filler contents 5%, 10%, 15%, 20%, 25% and 30%. Unfilled PP used as reference sample. The clay roof tiles wastes were prepared to achieve 45 micron in size to mix with PP. The composites were mixed using double hot roll mill mixer at temperature 190°C. The final products of the …
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Quantum control of the electronic and thermal properties of Fullerenes and Exohedral Fullerenes
… I will investigate the theoretical electronic and thermal properties of a carbon based class of nanoscale materials by examining the possibility of using fullerenes and decachlorofullerenes as building blocks towards viable molecular scale devices. In particular I have looked at ways to enhance …
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Phonon spectra and thermal properties of some fcc metals using embedded-atom potentials /
… we have calculated the dynamical matrices and phonon dispersion curves for six fee metals (Cu,Ag,Au,Ni,Pd and Pt). We have also investigated, within the quasiharmonic approximation, some other thermal properties of these metals which depend on the phonon density of states, such as the …
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Electronic, magnetic and thermal properties of Pb₂₋x AxCrO₅ (A = K or La)
… where x=O, 0.05, 0.125. We also investigate the properties of the lanthanum doped sample whose chemical formula is Pb1.85Lao.15Cr05' The electronic, magnetic and thermal properties of these materials have been studied. Magnetization measurements of the Pb2Cr05 sample indicate a transition at …
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Multi-scale electrical and thermal properties of aligned multi-walled carbon nanotubes and their composites
… for multi-functional (mechanical, electrical, thermal, etc.) property enhancement and tailoring. Traditional advanced fiber reinforced polymer composites are used for aerospace vehicles due to their high mass-specific properties. Still, improvements are desired including non-mechanical aspects, …
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