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This application note describes how X-ray diffraction (XRD) studies can be used in the study of coal and coal-related materials.. Mineral phases identified and quantified in raw coal are quartz, kaolinite, and minor amounts of calcite, dolomite, siderite and anatase. High-speed XRD systems such as the CubiX3 Minerals equipped with the X'Celerator detector allow the use of standardless methods such as Rietveld refinement for non-destructive analysis of coal and coal-related products. This method, therefore, provides a fast and reliable alternative to time- consuming traditional methods. .

Produtos:
CubiX3 Iron
Data:
July 20 2017
Idioma:
English
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This note compares the use of three different methods – X-ray diffraction, near infrared spectroscopy and differential scanning calorimetry – for quantifying small amounts of amorphous material in a crystalline matrix, and vice versa.. In this investigation we used alphalactose monohydrate as a model substance. In the pharmaceutical industry this material is widely employed as a filler and diluent in tablets and capsules, as a carrier substance in dry powder inhalers and as a lyoprotectant during the freeze-drying of proteins. .

Produtos:
CubiX3 Pharma
Data:
July 20 2017
Idioma:
English
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Quantitative texture analysis Nota de Aplicação

This application note describes the texture analysis of a rolled copper specimen. The experimental data were measured on a multi-purpose X-ray diffraction system equipped with a texture cradle.. In polycrystalline solid materials, such as a wide class of metals and ceramics, usually the orientation of the crystallites, constituting the matrial, is not distributed randomly, like in an ideal powder specimen. In most cases a preferred orientation of the crystallites with respect to the sample reference frame is present. In materials science this preferred orientation is referred to as texture. .

Produtos:
X'Pert3 MRD (XL)
Data:
July 20 2017
Idioma:
English
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XRD can be used for fast and accurate cluster analysis, phase identification and quantification of the minerals present in iron ore. The ore contains phases as hematite, goethite and magnetite as well as the gangue minerals gibbsite Al(OH)3, kaolinite Al2Si2O5(OH)4 and quartz SiO2. In addition, different XRD methods can distinguish between goethite with varying Al contents.. Theoretical grade blocks can be defined on the basis of the mineralogy determined by XRD, indicating ore grades that can be effectively and economically upgraded in the concentrator. Exploration of iron ore deposits can be done using cluster analysis. This method can distinguish between different ore grades and facilitate multidimensional compositional mapping of ore deposits. Cluster analysis identifies regions of favorable mineral compositions without detailed knowledge about the phase content..

Produtos:
CubiX3 Iron
Data:
July 20 2017
Idioma:
English
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Measurement of soil mineralogy typically is a time consuming. and expensive process that relies on submission of samples to a. laboratory for reference mineralogy determination. Near-infrared. reflectance spectroscopy can be used to predict major mineral. composition of soil samples in near real-time without the need for. expensive and slow laboratory mineralogy measurement. Nearinfrared. reflectance spectroscopy has been used for estimation of. soil mineralogy, ground-truth measurement of over flight sensors for. wide area assessment and for estimation of soil carbon flux. This. poster will review various approaches for the determination of soil. mineralogy using near-infrared reflectance spectroscopy..

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