Results 21 to 30 of about 10,849 (249)
Automatic Rietveld refinement by robotic process automation with RIETAN-FP
Science and Technology of Advanced Materials: Methods, 2022 Rietveld analysis necessitates the manual trial-and-error refinement of various parameters. To reduce human costs and resources, we have developed a robotic process automation (RPA) system for the Rietveld analysis program RIETAN-FP.
Ryo Tamura +5 more
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Rietveld refinement of Ba5(AsO4)3Cl from high-resolution synchrotron data
Acta Crystallographica Section E, 2008 The apatite-type compound Ba5(AsO4)3Cl, pentabarium tris[arsenate(V)] chloride, has been synthesized by ion exchange at high temperature from a synthetic sample of mimetite (Pb5(AsO4)3Cl) with BaCO3 as a by-product. The results of the Rietveld refinement,
Wendy J. Harrison +3 more
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Rietveld refinement, magnetic and dielectric properties of Sr2+-Co2+-doped Zn2Y-type hexaferrites
Hybrid Advances, 2023 In this experimental study, Sr2+-Co2+ was doped in Zn2Y-type hexaferrite to improve its magnetic and dielectric properties. Sol-gel auto combustion was used to synthesize Ba2-xSrxZn2-yCoyFe12O22 (x = 0.0, 0.4, 0.8 and y = 0.0, 0.5, 1.0), and the ...
Ibrahim Mohammed +3 more
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Pressing the Limits of Rietveld Refinement [PDF]
Australian Journal of Physics, 1988 Two examples are given, one with X-ray data and one with netltron data, of the determination of structural detail which appear to be at the edge of current possibility for the Rietveld structure-refinement method. In the first example, 2·2 wt% Sb substituted in CalO(P04)6F2 was located.
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Revista de Investigación de Física, 2021 The Rietveld refinement method has taken high relevance since its creation. Nowadays, it is an useful tool in many fields of industry, materials science, and technology.
Diego Alberto Flores Cano +5 more
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Yankuang ceshi, 2019 BACKGROUND The content of minerals in kyanite can be analyzed by chemical phase method, but the analytical process is very tedious. Moreover, the existence of heteromorphism and refractory minerals can affect the accuracy of analysis results. An internal
RAN Jing +3 more
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Crystal Structure Refinement of Synthetic Pure Gyrolite
Medžiagotyra, 2015 Pure calcium silicate hydrate – gyrolite was prepared under the saturated steam pressure at 473 K temperature in rotating autoclave. The crystal structure of synthetic gyrolite was investigated by X-ray diffraction and refined using Le Bail, Rietveld and
Arūnas Baltušnikas +5 more
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Journal of Research of the National Institute of Standards and Technology, 2004 Global optimisation methods of structure determination from powder diffraction data have risen to prominence in a relatively short space of time and they now constitute a key approach in the examination of polycrystalline molecular organic materials. A correctly formulated global optimisation approach may be regarded as a "global Rietveld refinement ...
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Journal of Magnesium and Alloys, 2023 A new ternary compound, Mg11-xZnxSr in the Mg-Zn-Sr system was observed and studied using Scanning Electron Microscopy (SEM), Energy-Dispersive Spectroscope (EDS), X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM).
Jian Wang +7 more
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Heavily Boron Doped Diamond Powder: Synthesis and Rietveld Refinement
Crystals, 2018 Boron-doped diamonds were synthesized by the reaction of an amorphous globular carbon powder (80%) with a powder of 1,7-di (oxymethyl)-M-carborane (20%) in a ‘toroid’-type high-pressure chamber at a pressure of 8.0 GPa and temperature of 1700
Igor P. Zibrov, Vladimir P. Filonenko
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