Results 51 to 60 of about 33,137,902 (193)
Advances in Civil Engineering, 2020 In order to study the leaching characteristics of hardened cement paste by flowing environmental water, indoor simulated leaching tests of Portland cement paste were carried out at different flow velocities with home-made flow field device and tap water ...
Lunchao Zhang +3 more
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Química Nova, 2007 A sample of hydroxyapatite was synthesized and its crystalline structure was analyzed by X-ray diffraction by means of the Rietveld method. Two functions were used to fit the peak profiles, modified Voigt (TCHZ) and Pearson VII.
Jorge Correa de Araújo +3 more
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Rietveld Method Applied for Triacylglycerol Polymorphism Analysis [PDF]
Acta Crystallographica Section A Foundations and Advances, 2014 The characterization of the fat components becomes very useful in the formulation of shortening, margarines and fatty products due to their unique properties of plasticity, texture, solubility and aeration. The qualitative analysis obtained by X-ray diffraction (XRD) can be further improved in order to fulfill the lack of information on the ...
Guilherme Calligaris +3 more
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Ciencia del Suelo, 2007 The mineralogical quantification of soils species is mainly obtained by analysis of X-ray diffraction (XRD) patterns. The classic method, for these analyses, is limited to semi quantitative determinations due to the overlapping of different specie's ...
Stella M Zabala +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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Optimization of the clinker production process in a Spanish cement factory
Materiales de ConstruccionWith the aim of manufacturing a clinker that reduces the energy consumption in its grinding, without substantially modifying the behavior of the cement manufactured with it, a characterization methodology based on the Rietveld method has been developed.
J. Manovel +2 more
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Cerâmica, 2007 O método precursor polimérico foi aplicado para a síntese de pós de Ti x(Sm0,2Ce0,8)1 xO2-delta, com 0 < x < 0,5, com tratamento nas temperaturas de 400 ºC, 700 ºC e 1000 ºC.
S. Domingues +4 more
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How Crystalline is My Cellulose Specimen? Probing the Limits of X-ray Diffraction
BioResources, 2022 Cellulose serves as a skeleton for many of the useful products upon which we rely on each day. When we want to learn about a skeleton, it makes sense to think about X-ray methods.
Alfred D. French
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Improved Method for Electron Powder Diffraction-Based Rietveld Analysis of Nanomaterials
NanomaterialsMultiphase nanomaterials are of increasing importance in material science. Providing reliable and statistically meaningful information on their average nanostructure is essential for synthesis control and applications.
Viktória K. Kis +2 more
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The Quantification of Crystalline Phases in Materials: Applications of Rietveld Method
, 2012 The materials have their properties defined by the chemical composition and the microstructure presented on them. The quantification of crystalline phases is a key step in determining the structure, properties and applications of a given material ...
C. Kniess, J. C. Lima, P. B. Prates
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