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 497 for “"X-Ray Diffraction (XRD)"”.
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Filament-Assisted Chemical Vapor Deposition of Diamond and Its Mechanism
… by techniques such as Raman spectroscopy, X-ray diffraction (XRD), Auger electron spectroscopy (AES), and scanning electron microscopy (SEM).
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Photolytic Laser-Induced Chemical Vapor Deposition for Aluminum Film Growth
… (AES), secondary ion mass spectrometry (SIMS), x-ray diffraction (XRD), scanning electron microscopy, and resistivity measurements.
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Activity and selectivity of transition metal (Fe, Mo and W) carbides in the Fischer-Tropsch synthesis
… of the materials were characterised by X-ray diffraction (XRD), transmission electron microscopy (TEM), BET measurements and temperature programmed desorption of carbon monoxide (CO-TPD). The performance of the materials was tested in a Berty reactor. A reduced, precipitated iron oxide …
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CERAMIC MATERIALS USED IN SOLID-OXIDE FUEL CELLS
… composite microstructures are characterized by X-ray diffraction (XRD), atomic-force microscopy (AFM), focused ion beam (FIB) milling, field-emission scanning electron microscopy (FESEM), X-ray energy dispersive spectroscopy (XEDS) and transmission electron microscopy (TEM). Last, the …
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One-Dimensional nanostructured polymeric materials for solar cell applications
… by scanning electron microscopy (SEM), X-Ray diffraction (XRD), Raman, Fourier-transformed infrared spectroscopy (FTIR), ultraviolet and visible spectroscopy (UV-Vis), photoluminescence(PL), thermal gravimetric analysis (TGA) and cyclic voltammetry (CV) experiments. Devices fabricated from …
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Part I: Self-Assembling Dendrimers Using the Dda-Aad Hydrogen Bonding Motif. Part II: Supramolecular Discotic Liquid Crystals Through Hydrogen Bond Mediated Self-Assembly
… (DSC), polarized light microscopy (PLM) and X-ray diffraction (XRD) indicate that the hexameric disks can stack in bulk to form thermotropic columnar mesophases. The mesophases exist across a large temperature range (>248°C).
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Electrical resistivity of the kondo systems (Ce1−xREx)In3, RE = Gd, Tb, Dy AND Ce(Pt1−xNix)Si2
… elements RE = Gd, Tb and Dy in CeIn3, through x-ray diffraction (XRD) and electrical resistivity measurements
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Growth of Wurtzite Gallium Nitride Epitaxial Films on Sapphire Substrate by Reactive Molecular Beam Epitaxy and Material Characterization
… obtain films with high electron Hall mobility. X-ray diffraction (XRD), photoluminescence (PL), cross-sectional transmission microscopy (XTEM) and deep level transient spectroscopy (DLTS) results also show consistency with electrical results. For the growth of Mg-doped GaN films, larger ammonia …
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Sol-gel processing of RxY3-xAlyFe5-yO12 magneto-optical films
… for 4 hours. Samples were characterized via x-ray diffraction (XRD), magneto-optical loop tracer, scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), profilometry and optical microscopy.
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Detection of expansive soils using remote sensing in Brits North-West Province South Africa
… mapped and characterized using methods such as X-ray Diffraction (XRD) and standard engineering tests such as Atterberg limits. These traditional methods have proven to be time consuming, labour intense and expensive. Remote sensing has shown potential as a faster, cheaper non-laborious …
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Laboratory Scale Study of Calcium Sulfate Hydration Forms
… 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 world processing of these materials. The …
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Geochemical controls on production in the Barnett Shale, Fort Worth Basin.
… evaluate thermal maturity in more detail, and x-ray diffraction (XRD) to determine mineralogy. Based on these analyses, it is apparent that the best production from the Barnett Shale is typically found in maturation areas from 1.65 to 2.10%Ro with high organic carbon content, high quartz content, …
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Synthesis and characterization of cadmium selenide and zinc selenide nanoparticles
… photoluminescence spectroscopy (PL), X-ray diffraction (XRD), transmission electron microscopy (TEM) and infrared spectroscopy (FT-IR).
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Experimental and Numerical Investigation of Residual Stresses in Shot Peened Flange Pin of Landing Gears
… shots are investigated experimentally with X-ray diffraction (XRD) technique and numerically via finite element analysis (FEA) using Abaqus package. The experimental data show that at the surface of the peened flange pin the residual stresses in longitudinal and circumferential direction of …
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Reactions of thin film bilayers of nickel on silicon-germanium alloys
… volume of the film structure. In-situ X-ray Photoelectron Spectroscopy (XPS) is also done during vacuum annealing of the bilayer structure, and yields information about phase changes that occur at the surface of the sample. The combination of cross-sectional Transmission Electron …
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Synthesis, characterization and reactivity of tungsten oxynitride
… with NH₃. All samples were characterized by X-ray diffraction (XRD), nitrogen physisorption, and CO chemisorption. In addition, some sample compositions were determined by elemental analysis. Samples were prepared at various heating rates (β), allowing a Redhead analysis to be carried out …
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Growth and characterization of FeSi nanowires by chemical vapor deposition for gas sensing applications
… All the nanostructures were characterized by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Photoluminescence Spectroscopy (PL), Raman Spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR).
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Bismuto sulfido nanodalelių sintezė ir tyrimas /
… The products were characterized by powder X-ray diffraction(XRD), scanning electron microscopy(SEM). Bismuth citrate, which is known to be a linear polymer, may play a critical role as a precursor and a template for the growth of linear Bi2S3 nanorods. These nanorods could be applied in the …
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Polyamide-imide and Montmorillonite Nanocomposites
… dependent dispersion effect was studied by x-ray diffraction (XRD) and was confirmed by Transmission electron microscopy (TEM). Differential scanning Calorimetry (DSC) and Thermogravimetric analysis (TGA) was used to study impact of MMT on glass transition temperature (Tg) and degradation …
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Metallurgical characterization and residual stress measurements of target structural materials
… annihilation spectroscopy (PAS), neutron diffraction (ND) and x-ray diffraction (XRD) methods. Materials tested were austenitic Type 304L SS and martensitic Alloys EP-823 and HT-9. Types of specimen tested include cold-worked (CW), three-point-bent and welded specimens consisting of …
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