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Showing 1 to 14 of 14 for “"synchrotron XRD"”.
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Influence of Mechanical Loading and Temperature on the Magnetic Properties of FeCo-2V Soft Magnetic Alloy
… (DIC), Electron Backscatter Diffraction (EBSD), synchrotron X-ray diffraction, Single Sheet Tester (SST) measurements, and magnetic loss analysis, this work offers a multiscale perspective on the relationship between mechanical deformation, microstructural evolution, and magnetic performance. …
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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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Response of chromium and chromium-aluminum coatings on zircaloy-2 to high temperature steam
… and formed δ-hydrides in Zircaloy matrix. Synchrotron XRD demonstrated that longer exposure times increased hydride peak intensity and decreased intermetallic SPPs peak intensity. A concentration of 1000 wppm hydrogen in Zircaloy was estimated using synchrotron XRD after 20 hours exposure …
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DEVELOPMENT OF NANO-STRUCTURED METAL OXIDES/GRAPHENE FOR ENERGY APPLICATIONS
… in operando high-energy x-ray diffraction (HEXRD) and in operando x-ray adsorption near edge spectroscopy (XANES). The HEXRD results clearly show that V2O5 undergoes phase transformations during the first Li+ ion intercalation (i.e. discharge) process. The analysis of the XANES data suggests …
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DEVELOPMENT OF NANO-STRUCTURED METAL OXIDES/GRAPHENE FOR ENERGY APPLICATIONS
… in operando high-energy x-ray diffraction (HEXRD) and in operando x-ray adsorption near edge spectroscopy (XANES). The HEXRD results clearly show that V2O5 undergoes phase transformations during the first Li+ ion intercalation (i.e. discharge) process. The analysis of the XANES data suggests …
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Lithium-ion Battery Devices as a Method of Doping Metal Halide Perovskites
… a suite of operando analysis techniques such as synchrotron XRD and optical microscopy. Three doping regimes, depending on the relative phase fraction of perovskite, are quantified. The overall conclusions suggest methods of optimising both perovskite-based energy conversion and energy storage …
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Microstructural study of intergranular M23C6 precipitates in Alloy 709
… were investigated using electron microscopy and synchrotron X-ray diffraction (XRD). Intergranular M23C6 precipitates were first formed on high angle grain boundaries, followed by the formation of lamella-shaped M23C6 precipitates on twin boundaries. The precipitation time threshold of M23C6 was …
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Understanding two-phase reaction processes in electrodes for Li-ion batteries
… was investigated by $\textit{in situ}$ synchrotron X-ray powder diffraction (XRD). At high cycling rates, the transition between LiFePO$_{4}$ ($\textit{Pnma}$) and FePO$_{4}$ ($\textit{Pnma}$) was found to proceed continuously via metastable solid solution phases, instead of a phase …
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Environmental mineralogy of gold recovery from refractory gold-arsenic-bearing Bakyrchik concentrates
… processing products has been investigated using XRD and EPMA. This revealed arsenopyrite, As-bearing pyrite, and their alteration products containing up to 25% As, iron oxides and oxyhydroxides (with up to 2.5% As), haidingerite, and calcium arsenate in studied samples. Sequential extraction …
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Critical size for bulk-to-discrete transition and segment-induced size effect melting of 2D aliphatic layers
… are determined for the first time by coupling synchrotron XRD and nano-beam electron diffraction. Nanocalorimetry and commercial DSC are employed to systematically measure the chain-length-dependence and layer-number-dependence of AgSCn chain melting (Tm). Three unique effects of size-dependent …
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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 …
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Nondestructive Analysis of Advanced Aerospace Materials via Spectroscopy and Synchrotron Radiation
… environments. Characterization methods utilizing synchrotron X-Ray diffraction and spectroscopy can decrease the time required to determine an emerging material's readiness for application through intrinsic information on the material response and failure mechanisms. In this study, thermal barrier …
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In-Situ Investigations of Calcium-Magnesium-Aluminosilicates (CMAS) Infiltration Effects on Thermal Barrier Coatings Under Extreme Environments Replicating Jet Engines
… during operation. In this research, in-situ synchrotron X-ray diffraction measurements were leveraged for the high temporal and spatial resolution it offers, to enable the first known detailed capture of complex, transient micro-mechanisms governing active CMAS infiltration processes of …