the possible sources of the error are addressed when MA'ed powders of Al–X (X = Ti, Nb) system are characterized by the XRD method, and proper XRD analysis methods are suggested to determine on lattice parameter, solubility of minor elements, crystallite size and strain variance in the MA...
However, the spectra of late-stage basalts with spectral features similar to those of CE-5 samples have been interpreted as enriched in olivine in the past, while the XRD analysis of CE-5 samples shows the olivine abundance is not significant. What causes the misidentification of an HCP-domina...
X-ray diffraction (XRD) analysis was conducted on pow-dered samples of manganite. The XRD identification ofsynthetic birnessite was performed on thickened film pre-cipitated on an aluminum disk. The film was prepared aspreviously stated, but over 100 dipping cycles were per-formed to produce a...
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Multiple porosity interpretation methods should be conducted and the optimal interpretation method suitable for the study area should be found by analyzing the advantages and disadvantages, error analysis, and applicability of each method. For sandstone and carbonate rocks, the traditional method of ...
Moreover, we have developed a computational image analysis pipeline that deciphers the complex morphologies of these SEM images automatically and also allows for formulating a hypothesis of morphology development in HTP that is in good agreement with the manual morphology analysis. Finally, we upscaled...
The XRD analysis was performed at the National Laboratory of Energy and Geology (LNEG, Portugal) using a Panalytical Diffractometer XPERT-PRO, equipped with a PW3050/60 goniometer, with a Theta-2Theta geometry and X-ray tube with a copper (Cu) anticathode. The tube voltage and current ...
3.6. XRD Analysis The crystalline structure was determined by a Shimadzu XRD 7000S (Shimadzu, Kyoto, Japan) while using Cu-Ka radiation. The samples were scanned at 40 kV and 30 mA in a 2θ range of 4–40° at 1° min−1. Before analysis, the experimental data were nine points smo...
XRD has identified 5 to 8 weight percent clay minerals with illite composing approximately 2/3 of the clay and the remainder being chlorite. Klinkenberg permeability ranges from 0.010 to 0.125 millidarcies. The interpreted depositional environment of the Gray Sand interval in the Willamette well is...
Reduction in the crystalline size and the lattice strain cause a significant peak broadening, and dissolution of solute atoms results in peak shift in X-ray diffraction (XRD) spectrum. Therefore application of conventional XRD analysis routes is not straight forward, and could lead...