搜索结果: 1-9 共查到“理学 Rietveld refinement”相关记录9条 . 查询时间(0.281 秒)
Microstructure Characterization of ZnFe2-xMxO4 (M = Bi, Y and x = 0.1, 0.2) Ferrites by the Rietveld Refinement
Ferrites -ray diffraction lattice parameter paramagnetic magnetization
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2010/4/12
The microstructure of the ferrites was analyzed by the Reitveld refinement method. The Bi-containing ferrites revealed a decrease in the lattice parameter as the Bi3+ concentration is increased, due t...
Rietveld refinement of the crystallographic structure of human dental enamel apatites
Rietveld refinement crystallographic structure human dental enamel apatites
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2012/4/1
Rietveld refinements using 12 sets of X-ray diffraction powder data from milligram samples of
human dental enamel provide detailed information about the structure and composition of enamel
apatite. ...
Rietveld refinement of Ca2TiSiO6 perovskite
Rietveld refinement Ca2TiSiO6 perovskite
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2012/4/5
Thestructureofthehigh-pressurecubicdoubleperovskiteCa TiSiO wasre?nedusingsynchrotronX-raypowderdata[S.G. Fm3m,a 7.4105(1)A, Z 4].TiandSiarefullyorderedintoalternatingoctahedraintheperovskiteframework...
Quantitative analysis of alkali feldspar minerals using Rietveld refinement of X-ray diffraction data
Quantitative analysis alkali feldspar minerals X-ray diffraction data
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2012/4/6
Microcline +albite and albite + quartz standard mixtures werequantitatively analyzed using Rietveld refinement to investigate the reliability of the method. The method was also applied to the determin...
Hydrogen positions and thermal expansion in lizardite-1T from Elba: A low-temperature study using Rietveld refinement of neutron diffraction data
Hydrogen positions thermal expansion lizardite-1T Elba low-temperature study neutron diffraction data
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2012/4/6
Thestructure oflizardite-l Tfrom MonteFico,Elba,wasrefined in spacegroupP31m usingneutron diffractiondata, measuredat 8, 150,and 294K,and full-profile Rietveld
refinement techniques. Thelattice param...
Rietveld Refinement of the Kaolinite Structure at 1.5 K
Crystal structure H positions Kaolinite Low temperature Neutron powder diffraction Rietveld refinement
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2011/12/30
The crystal structure of Keokuk kaolinite, including all H atoms, was refined in space group C1 using low-temperature (1.5 K) neutron powder diffraction data (λ = 1.9102 Å) and Rietveld refineme...
Rietveld Refinement and Fourier-Transform Infrared Spectroscopic Study of the Dickite Structure at Low Temperature
Dickite FTIR Infrared spectroscopy Low temperature Neutron powder diffraction Rietveld refinement
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2011/12/29
The full structure of dickite from St. Claire, Pennsylvania, including hydrogen atoms, was refined in space group Cc using time-of-flight neutron powder diffraction data obtained at 12 K and Rietveld ...
Application of Rietveld Refinement Techniques to a Disordered IIb Mg-Chamosite
Chlorite Disorder Rietveld refinement
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2011/12/31
The structure of a disordered IIb Mg-chamosite was studied using Rietveld refinement techniques and powder X-ray diffraction (CuKα, 18–120° 2θ in 0.02° 2θ increments). The refinement in space group Cl...
Rietveld Refinement of Non-Hydrogen Atomic Positions in Kaolinite
Crystal structure Dickite Kaolinite Rietveld refinement X-ray powder diffraction
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2012/1/5
The structure of kaolinite (non-hydrogen atoms only) from Keokuk, Iowa, was refined in space group C1 using CuKα X-ray powder diffraction data and Rietveld refinement techniques (Rwp = 12.3%). A dista...