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 701 for “"Scanning Electron Microscopy (SEM)"”.
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Rheological studies and percolation modeling of microstructure development of fresh cement paste
This study combines rheology, scanning electron microscopy (SEM) and cement hydration studies as well as theoretical modeling to gain fundamental understanding about the microstructure, its control of flow behavior, its development due to hydration, and setting.
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Filament-Assisted Chemical Vapor Deposition of Diamond and Its Mechanism
… spectroscopy, X-ray diffraction (XRD), Auger electron spectroscopy (AES), and scanning electron microscopy (SEM).
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Surfaces of weathered minerals associated with soil drainage: A quantitative microscopic evaluation
The use of scanning electron microscopy (SEM) has allowed the viewing of the surfaces of silt and sand sized soil minerals. These surfaces are a record of the weathering history of the grain in a particular pedochemical environment. The objective of this dissertation was to develop SEM techniques …
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Changes in the near-surface stress in titanium caused by krypton ion-implantation
… of titanium samples is investigated through scanning electron microscopy (SEM). Rutherford backscattering spectrometry (RBS) was also used to determine the dose and depth of implanted krypton. The krypton profiile in titanium, and the associated damage profile, was modelled with TRIM …
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One-Dimensional nanostructured polymeric materials for solar cell applications
… prepared by microwave irradiation and used as electron acceptors in photovoltaics devices. The morphological, structural, spectroscopic and electrochemical characteristics of these materials were determined by scanning electron microscopy (SEM), X-Ray diffraction (XRD), Raman, …
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Development of Ti-Si-N and Ta-Si-N as diffusion barriers
… X-ray diffractometry (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), auger electron spectroscopy (AES) and annealing in a controlled ambient atmosphere"--Abstract, page iv.
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Nanoscale Hydrogel Films and Polymer Brushes Grafted Onto Nanocapillary Array Membranes for Externally Controllable Size -Selective Molecular Transport
… infra-red (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), while SPR measurements were used to characterize both the synthesis of the hydrogel, as well as to characterize potential-induced volume changes on planar Au surfaces. Scanning electron microscopy (SEM) and transmission …
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Composite poly(dimethoxyaniline) electrochemical nanobiosensor for glufosinate and glyphosate herbicides
… spectroscopy, UV-Vis Spectroscopy, Transmission electron microscopy (TEM) and Scanning electron microscopy (SEM) studies inferred successful doping of the nanostructured PDMA film by PSS and that the template PSS directed the synthesis of both nanotubes and nanoparticles of PDMA with diameters …
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An investigation of the temperature distribution induced during laser chemical vapor deposition (LCVD) of titanium nitride on titanium-aluminum-vanadium
… and microstructure have been determined by Scanning Electron Microscopy (SEM), Auger Electron Spectroscopy (AES), and X-ray Photoelectron Spectroscopy (XPS).
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Alignment and characterization of carbon nanotubes of photolithographically patterned electrodes
… of their Raman Radial Breathing Modes and electron transition energies E[sub]ii based on Raman spectroscopy. The suspended SWNTs are grown on a photolithographically defined electrode pattern, which is designed so that suspended SWNTs are grown at known locations with known directions. The …
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Abiotic stressors in the dogwood anthracnose complex
… these and non-treated plants were examined by scanning electron microscopy (SEM). Damage was noted at all pH levels. Discula destructiva conidia may germinate at trichome bases where damage may cause the leaching of nutrients. Also, the difference in stomatal damage may account, in part, for …
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Sol-gel processing of RxY3-xAlyFe5-yO12 magneto-optical films
… diffraction (XRD), magneto-optical loop tracer, scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), profilometry and optical microscopy.
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Laboratory Scale Study of Calcium Sulfate Hydration Forms
… analysis and sorption analysis. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the products from different processes. In addition to the instrumental studies, small batches were handled in ovens and liquid slurries to better mimic the real …
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Revisão sistemática dos Octocorallia (Coelenterata, Anthozoa) dos recifes de Abrolhos, BA, Brasil
… of every species were illustrated; most using Scanning Electron Microscopy (SEM). Six species were reported: Carijoa riisei (Duchassaing & Michelotti, 1860); Muriceopsis sulphurea (Donovan, 1825); Plexaurella grandiflora (Verrill, 1912); Plexaurella sp.; Olindagorgia gracilis (Verrill, 1912); e …
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Structure and properties of titanium nitride-strengthened microlaminate metal matrix composites
… and properties of the composites investigated. Scanning electron microscopy (SEM), cross-sectional transmission electron microscopy (TEM) and scanning Auger electron spectroscopy (AES) have been used to characterize the film morphology, the fracture behavior of the composites, and the nature of …
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Synthesis and Characterization of Aluminum-Carbon Nanotube Composite by Cryogenic Milling
… was studied using X-ray diffraction, optical microscopy, nanoindentation, scanning electron microscopy (SEM), Raman spectroscopy, and laser diffraction particle size analysis.
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The Effect of Surface Corrosion Damage on the Fatigue Life of Extruded Aluminum Alloy 6061-T6
… life was then investigated and analyzed using scanning electron microscopy (SEM) and Weibull statistics. It was determined that samples corroded for both 2-days and 24-days exhibit fatigue lives that can be described using a 3-parameter Weibull distribution. The result of which was the …
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Evaluation of the antimicrobial properties and biocompatibility of polypropylene mesh conjugated with gold nanoparticles
… transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) in order to determine if functional groups and AuNPs had been successfully attached. Differential scanning calorimetry (DSC) was utilized to analyze the heat of fusion and denaturation temperature of the modified …
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Novel Endodontic Disinfection Approach Using Nanotechnology
… used chemical modalities using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM) as analytical tools. We hypothesized that iron oxide NP with enzyme-like (peroxidase) activity catalyzes H2O2 to promote bacterial killing within dentinal tubules (DT) via in situ …
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A comparative study of carnivorous leaves in the genus Sarracenia
… species throughout the range of the genus using scanning electron microscopy (SEM). Nine unique microstructures were identified in the carnivorous leaf. For the first time, microstructures (N=880) were systematically measured and zonal averages were compared among zones (with MANOVA) and species …
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