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Showing 1 to 19 of 19 for “"XRD measurements"”.
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Density, magnetic properties and sound velocities of iron-rich materials at high temperature and high pressure
… methods, including X-ray diffraction (XRD), nuclear resonant inelastic X-ray scattering (NRIXS), synchrotron Mössbauer spectroscopy (SMS) and conventional Mössbauer spectroscopy (CMS). The starting materials of (57Fe-enriched) Fe3C samples were synthesized using large-volume presses. …
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Electrochemical synthesis of functional nanowires
… microscopy (TEM), and X-ray diffraction (XRD) measurements. Devices with a single CdSe nanowire were made by standard electron beam lithography techniques. Electrical transport measurements were performed on the nanowire arrays as well as single contacted CdSe nanowires. Photo response …
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Development of X-ray Fan Beam Coded Aperture Diffraction Imaging for Improving Breast Cancer Diagnostics
… for diagnosis. In contrast, X-ray diffraction (XRD) is another X-ray measurement modality, one that typically does not produce spatially resolved 2D/3D images, but instead investigates small spatial spots for assessing material properties/molecular structures based on scattered X-rays. While XRD …
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COMPOSITION AND PRESSURE DEPENDENT STUDY ON WEYL SEMIMETAL Mo1-xWxTe2
… X-ray spectroscopy and X-ray diffraction (XRD). Temperature-dependent resistivity measurements at ambient pressure show metallic behavior for all dop- ing levels. Transverse magnetoresistance (MR) measurements show that the parent compounds exhibit large non-saturating MR, which might …
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Fabrication and characterisation of ZnO nanostructures: from nanoscale building blocks to hybrid nanomaterials - towards emerging technologies in sensing applications
… ZnO nanoneedles onto the TiO2 nanofiber surface. XRD measurements revealed that after ZnO deposition at T > 500 °C, the TiO2 nanofibers were composed of the anatase rutile mixed phases with dif-ferent fractions of rutile, modulated by the Zn dopant concentration. These com-posite nanomaterials may …
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A Study of the Kinetics of Phase Separation in a Nickel-12.5 at.percent Silicon Alloy
… means of in situ wide-angle x-ray diffraction (XRD), small-angle neutron scattering (SANS) and high-resolution wide-angle XRD techniques. The kinetic parameters, i.e. rate constants, governing the growth of the particle size and the volume fraction of the $\gamma\sp\prime$ precipitate are …
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Reconfigurable Photonics based on Broadband Low-loss Optical Phase Change Materials
… free carrier absorptions, as confirmed by Hall measurements. In-situ heating TEM and XRD measurements are carried out to confirm and understand the crystal structures of Ge₂Sb₂Se₄Te₁. We show that the optimized alloy, Ge₂Sb₂Se₄Te₁, combining broadband low loss (1 – 18.5 μm), large optical …
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Growth and Characterization of (InxGa1-x)2O3, and NiO Heterostructures
… the bandgap of the alloy. This was confirmed by measurements of the electrical properties of the grown layers. Primarily, heteroepitaxial thin films of NiO, β-Ga2O3, and β-(InxGa1-x)2O3 were grown on insulating c-plane (0001) sapphire (α-Al2O3) and improved crystallinity was observed at high …
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The use of metal complexes to deposit metal chalcogenide thin films and nanoparticles
… films were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX). The fourth chapter focuses on the preparation of nanoparticles and nanorods from cadmium complexes. The synthesis of CdS nanoparticles and nanorods are described …
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Synthesis and characterization of nanocrystalline CuCl hybrid films for electroluminescent device fabrication.
… behaviour. Room temperature Xray diffraction (XRD) confirmed the preferential growth of CuCl nanocrystals whose average radius size was ≈1422 nm in the (111) orientation. Scanning Electron Microscopy (SEM) measurements revealed that the average surface area of the films covered by the CuCl …
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Structure and properties of transparent conductive ZnO films grown by pulsed laser deposition (PLD)
… films were investigated using X‐ray diffraction (XRD), atomic force microscopy (AFM), scanning electronic microscopy (SEM), spectrophotometers and resistance measurement by the four‐point probe. Regarding the influence of oxygen pressure, XRD measurements indicate that the ZnO thin films deposited …
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Use phase performances of photocatalytic cements
… the adverse effect of carbonation. Based on XRD measurements, CSAB samples carbonated more than the OPC samples. CaCO3 content in white OPC and CSAB samples decreased with increase in TiO2 content and decrease in w/b. Carbonation of photocatalytic CSAB samples contained Calcite and Aragonite …
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NMR Studies of the Electronic Structure, Lithium-Ion Dynamics, and Prelithiation of Lithium-Ion Battery Anode Materials
… lithiated graphite. Electrochemical GITT measurements, variable temperature XRD and 7Li ssNMR, including relaxometry techniques (T1, T2 and T1ρ), were used to study the intercalation of lithium into graphite and Li dynamics at different states of charge. Notably, through T1ρ measurements, …
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Evaluation of the microstructural, electronic and optoelectronic properties of ƴ-CuCl thin films and their fabrication on Si substrates
… Room temperature x-ray diffraction (XRD) measurements show that CuCl grows preferentially in a (111) orientation irrespective of the underlying substrate. Microstructural properties of the films gave nearly the same values for untreated CuCl films deposited on glass, ITO and Si …
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Fabrication and Characterization of Optoelectronics Devices Based on III-V Materials for Infrared Applications by Molecular Beam Epitaxy
… GaSb are discussed. Based on X-ray diffraction (XRD) measurements both InAs/GaSb superlattices exhibit excellent material qualities with the full width at half maximum (FWHM) of the 0th-order peak about 20arcsec, which is among the narrowest ever reported. The 50% cutoff wavelengths at 80K of the …
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Hybrid organic/inorganic nanotubes of imogolite type
… most terminal -NH2 groups are protonated; iv) XRD measurements and FE-SEM microscopy yielding information on the long-range order and morphology; v) N2 adsorption at -196°C, yielding specific surface area and pore size distribution. Adsorptive properties were tested towards CH4 and CO2 by means …
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Improved Performance of Multilayer Neutron Monochromator by Additon of Hydrogen in Titanium Layer
Made available in DSpace on 2017-07-06T18:48:52Z (GMT). No. of bitstreams: 3 Ju_Hyunsu_MS.pdf: 13210324 bytes, checksum: be7c79b6c5b4a6f2d301fa24ed847746 (MD5) Ju_Hyunsu_MS_ABS.pdf: 77999 bytes, checksum: 00214c3fb36571a3d0b25a628b64512e (MD5) license.txt: 4813 bytes, checksum: …
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Investigation of the properties of iron-bearing alloys and silicates and their implications for the Earth’s lower mantle and core
… structure (XANES), NFS and X-ray diffraction (XRD) spectroscopies), in order to get a rather complete picture regarding the spin state of iron in this compound. Desirable pressures relevant to those in the Earth’s lower mantle were achieved by means of diamond anvil cells, equipped with …
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Fabrication, Kinetics and Crystallography of Lithium Disilicate Glass-Ceramics
… of phase transition using X-ray diffraction (XRD) technique with the state-of-the-art synchrotron radiation. In the meantime, it is of interest to systematically study the evolution of crystallographic structure of the involved crystalline phases (mainly lithium metasilicate and/or …