نتایج جستجو برای: xrd analysis

تعداد نتایج: 2842606  

2006
G. Liang Z. Tang H. Fang K. Salama

To clarify the inconsistency between calculated and existing experimental X-ray diffraction (XRD) pattern for dicopper magnesium (MgCu2) nd to identify the impurity phase in Cu-sheathed MgB2 superconductors, polycrystalline MgCu2 samples were synthesized and studied by XRD easurement. The XRD result shows that the (2 2 0), (4 2 2), (6 2 0), and (6 4 2) reflection lines, which are missing from t...

2010
V. I. Anikeev

Continuous hydrothermal synthesis of metal oxide nanoand microparticles in supercritical water was performed in a continuous flow reactor. The results of investigation of LiCoO2, LiNiO2, LiZnO2, LiCuO2, Ga2O3, CeO2 nanoparticles by HRTEM and XRD analysis were presented.

2011
Ning Jia Shu-Ming Li Ming-Guo Ma Jie-Fang Zhu Run-Cang Sun

Cellulose-silica composite fiber samples have been successfully synthesized using cellulose solution, tetraethoxysilane, and NH3•H2O in ethanol/water mixed solvents at room temperature for 24 h. The cellulose solution was previously prepared by the dissolution of microcrystalline cellulose in a solvent mixture of N,N-dimethylacetamide (DMAc)/lithium chloride (LiCl). The effect of the tetraethox...

2015
S. M. Morrison K. V. Fendrich A. S. Yen J. Grotzinger J. A. Crisp T. F. Bristow P. C. Sarrazin J. D. Farmer D. J. Des Ma M. A. Wilson N. Spanovich R. C. Anderson

Introduction: The Mars Science Laboratory (MSL) rover Curiosity recently completed its fourth drill sampling of sediments on Mars. The Confidence Hills (CH) sample was drilled from a rock located in the Pahrump Hills region at the base of Mt. Sharp in Gale Crater. The CheMin X-ray diffractometer completed five nights of analysis on the sample, more than previously executed for a drill sample, a...

Journal: :Chemical communications 2006
Matthew T Whited Eric Rivard Jonas C Peters

Divalent complexes of iron and cobalt with new, monoanionic tripodal amido-polyphosphine ligands have been thoroughly characterized, and XRD analysis reveals geometries that are distinct for this class of ligand.

Journal: :Acta Crystallographica Section A Foundations and Advances 2015

2007
Geochemical Case

X-ray diffraction (XRD) can provide useful information about the composition of an ore sample in terms of quantification of crystalline phases and also amorphous content. XRD is also a powerful technique for studying substitutional solid solutions that can affect mining productivity, such as determining lattice bound aluminum in Goethite. Knowledge of the phases present can predict processing r...

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