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Full-profile search-match by the Rietveld method. [PDF]
A new search–match procedure has been developed and tested which, in contrast to previously existing methods, does not use a set of lines identified from a diffraction pattern, but an optimized Rietveld fitting on the raw data. Modern computers with multicore processors allow the routine to be fast enough to perform the entire search in a reasonable ...
Lutterotti L +4 more
europepmc +5 more sources
Analysis of Rietveld Method Application for Gyrolite Crystal Structure Refinement
The several simulated X-ray diffraction patterns for calcium silicate hydrate – gyrolite were calculated with GSAS program using the structural model of natural mineral gyrolite and profile parameters values determined from refining crystal structure of ...
Arūnas BALTUŠNIKAS +5 more
doaj +2 more sources
Synthesis of hydroxyapatite doped with single and compound dopants and study upon the effect of crystal phase on its thermoluminescence response irradiated by gamma rays [PDF]
In this research work, hydroxyapatite samples doped with cerium, gadolinium, and a combination of these two dopants were synthesized through the hydrothermal method.
P. Taghipour Niar +3 more
doaj +1 more source
Maraging steels are martensitic steels hardened by precipitation of intermetallic compounds in thermal aging, with good machining properties and high strength, fracture toughness and corrosion resistance, being used in aircraft parts and rocket motor ...
Vanessa Sanches Pereira da Silva +4 more
doaj +1 more source
Synthesis and Crystal Structure of the Ordered Vacancy Compound Cu3In5Se9
This work focuses on the preparation and structural characterization of the semiconductor Cu3In5Se9, an important member of ordered vacancy compounds family, belonging to the semiconductor system I3-III5--VI9, where denotes the cation vacancy which is ...
Gerzon E. Delgado +4 more
doaj +1 more source
BACKGROUND Illite is an important mineral resource. It is of great theoretical and practical significance to accurately obtain the mineral composition and content of illite ores. The Rietveld full pattern fitting method uses the whole diffraction pattern
CHEN Aiqing +5 more
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Quantitative Phase Analysis by X-ray Diffraction—Doping Methods and Applications
X-ray powder diffraction is an ideal technique for the quantitative analysis of a multiphase sample. The intensities of diffraction lines of a phase in a multiphase sample are proportional to the phase fraction and the quantitative analysis can be ...
Stanko Popović
doaj +1 more source
Structural Analysis of Interstratified Illite-Smectite by the Rietveld Method
Rietveld method is a powerful tool in obtaining structural information of clay minerals by using of X-ray diffraction (XRD) patterns. However, the interstratified illite-smectites (I-S) show various stacking defects preventing the direct application of ...
Xiaoli Wang, Hejing Wang
doaj +1 more source
The Rietveld method is the most reliable and powerful tool for refining crystal structure when powder diffraction data are available. It requires that the structure model to be adjusted is as close as possible to the true structure.
Angela Altomare +6 more
doaj +1 more source
Photoactivity of titanium dioxide (TiO2) can be improved by turning it into nanoparticles. Synthesis of TiO2 nanoparticles can be done by using hydrothermal method.
Mohammad Rofik Usman +2 more
doaj +1 more source

