搜索结果: 1-15 共查到“理学 X-ray powder”相关记录29条 . 查询时间(0.062 秒)
In-Situ Identification of Palygorskite in Maya Blue Samples Using X-Ray Powder Diffraction
Palygorskite X-Ray Powder Diffraction Maya Blue Samples
2011/11/4
In spite of the abundance of colors found in the murals and other objects that correspond to the Classic Mayan period (600-900 A.D.), a peculiar hue captured the interest of researchers. The most well...
X-Ray Powder Diffraction and IR Study of Calcium Borophosphate CaBPO5
Ca Phosphate Borophosphate CaBPO5 X-ray Powder Diffraction and Crystal structure
2010/6/27
In this study, CaBPO5 was synthesized by different solid state reactions than reported before and its X-ray powder diffraction and IR data were reported. In one of these solid state reactions BPO4 was...
High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95,Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions
high-resolution synchrotron X-ray powder diffraction
2012/3/30
Thispaperpresentshigh-resolutionsynchrotronX-raypowderdiffractiondataat290K
ontwoFe-bearing,polycrystallinesilicateperovskitesampleswithapproximatecompo-
Fe )SiO synthesizedat25GPaand1920Kinamulti-a...
Dehydration dynamics of stilbite using synchrotron X-ray powder diffraction
Dehydration dynamics stilbite synchrotron X-ray powder diffraction
2012/4/5
Thecontinuousstructuraltransformationofthenaturalzeolitestilbite(NaK Ba Ca Sr Mg [Fe Al Si O ]!/60 O)upondehydrationhasbeen
3.62 0.44 0.03 6.32 0.28 0.04 17.33 54.64 144 2studiedusingRietveldstructur...
Transformation of mackinawite to greigite: An in situ X-ray powder diffraction and transmission electron microscope study
Transformation mackinawite to greigite X-ray powder diffraction transmission electron microscope study
2012/4/5
Partialtransformationofmackinawitetogreigitewasalsoobservedusingtransmissionelectronmicroscopy(TEM)followinginsituheating.Electrondiffractionpatternsshowthat(001)ofmackinawiteisparallelto(001)ofgreigi...
A synchrotron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopic study of malayaite, CaSnSiO5
synchrotron radiation HRTEM X-ray powder diffraction Raman spectroscopic study malayaite CaSnSiO5
2012/4/5
Synchrotron radiation, high-resolution transmission electron microscopy (HRTEM),X-ray powder diffraction, and Raman spectroscopy wereused to study the structure and thermal behavior of malayaite, CaSn...
X-ray Powder Diffraction Studies on the Rehydration Properties of Beidellite
Beidellite Cation migration Dehydration Fourier analysis Interlayer ration Rehydration X-ray powder diffraction
2011/11/30
Abstract: The rehydration properties of Ca-, Mg-, Na-, and K-saturated homoionic beidellites after heating at various temperatures were compared with those of montmorillonites. The behavior of interla...
Detection of Trace Amounts of Erionite Using X-ray Powder Diffraction: Erionite in Tuffs of Yucca Mountain, Nevada, and Central Turkey
Clinoptilolite Detection limits Erionite Profile refinement X-ray powder diffraction Zeolitic tuffs
2012/1/4
Recent data in the biological literature suggest that the natural zeolite erionite may be more tumorigenic than asbestos minerals. Because of its potential biological importance, a technique has been ...
X-ray Powder Diffraction Rietveld Characterization of Synthetic Aluminum-Substituted Goethite
Aluminum Crystallinity Goethite Rietveld refinement X-ray powder diffraction
2011/12/31
Rietveld X-ray powder diffraction (XRD) analysis has been evaluated as a procedure for characterizing Al-substituted goethite according to the Rietveld scale factor, unit-cell parameters, and atom pos...
Practical Notes Concerning the Indexing of X-ray Powder Diffraction Patterns of Clay Minerals
Chlorite Crystal structure Indexing Kaolinite Mica Modulated structures Ordering X-ray powder diffraction
2011/12/31
Hydrous phyllosilicate minerals exhibit many variations in unit-cell shape and symmetry, distortion due to cation ordering, polytypic repeats along Z, and lateral modulations that can affect the ease ...
Quantification of Crystalline and Noncrystalline Material in Ground Kaolinite by X-ray Powder Diffraction, Infrared, Solid-State Nuclear Magnetic Resonance, and Chemical-Dissolution Analyses
Chemical dissolution Dry grinding Infrared spectroscopy Kaolinite Noncrystalline Nuclear magnetic resonance X-ray powder diffraction
2012/1/5
The capabilities of X-ray powder diffraction (XRD), infrared absorption (IR), solid-state magic-angle-spinning nuclear magnetic resonance (MAS-NMR), and chemical dissolution methods were assessed for ...
Investigation of a K-Bentonite by X-ray Powder Diffraction and Analytical Transmission Electron Microscopy
Analytical transmission electron microscopy Bentonite Illite Interstratification Potassium Selected area diffraction Smectite X-ray powder diffraction
2011/11/30
Abstract: The < 0.1-µm size fraction of an Ordovician K-bentonite from northern Kentucky was characterized by X-ray powder diffraction (XRD). Using A.I.P.E.A. criteria for interstratification no...
Estimation of Heavy Atom Content and Distribution in Chlorite Using Corrected X-Ray Powder Diffraction Intensities
Chlorite Heavy atoms Intensity measurements Sample preparation X-ray powder diffraction
2012/1/9
The heavy atom content and distribution in chlorite were estimated using the relative intensities of basal X-ray powder diffraction (XRD) peaks. For these peaks to be meaningful, however, corrections ...
Quantification Curves for Mica/Smectite Interstratifications by X-ray Powder Diffraction
Ethylene glycol Interstratification Mica/smectite Reichweite structures X-ray powder diffraction
2012/1/9
X-ray powder diffraction (XRD) patterns for many interstratified mica/glycolated smectites were calculated by changing combinations of probabilities and transition probabilities of two-component layer...
Quantitative Determination of Hematite and Goethite in Lateritic Bauxites by Thermodifferential X-ray Powder Diffraction
Bauxite Goethite Hematite Iron Mineral analysis Thermal treatment X-ray powder diffraction
2012/1/9
An X-ray thermodifferential powder diffraction method for the quantitative determination of goethite and hematite in lateritic bauxites has been developed and consists of measuring the integrated inte...
