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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. .

Products:

X'Pert3 MRD (XL)

Date:

July 20 2017

Language:

English

This application note demonstrates the performance of the Axios FAST XRF spectrometer for the analysis of Al-Si and Al-Mg alloys.. Accurate and fast elemental analysis during the production process of aluminum and its base materials is a critical requirement. Measurements were performed using an Axios FAST simultaneous X-ray fluorescence spectrometer equipped with a 4 kW Rh SST-mAX X-ray tube. .

Products:

Axios FAST

Date:

July 20 2017

Language:

English

To guide soil fertility investment programmes in sub-Saharan Africa, better understanding is needed of the relative importance of soil and crop management factors in determining smallholder crop yields and yield variability. Spatial variability in crop yields within farms is strongly influenced by variation in both current crop management (e.g. planting dates, fertilizer rates) and soil fertility. Variability in soil fertility is in turn strongly influenced by farmers’ past soil and crop management. The aim of this study was to investigate the relative importance of soil fertility and crop management factors in determining yield variability and the gap between farmers’ maize yields and potential yields in western Kenya. In this study, 522 samples taken from the farms were analysed by diffuse reflectance spectroscopy, using an ASD FieldSpec FR spectroradiometer.

Products:

ASD FieldSpec range

Date:

December 5 2018

Language:

English

In this study we have set up and made separate calibrations in accordance with the methods stipulated in both ASTM D2622-10 and ISO 20884:11 norms.. The latest 2010 version of ASTM D2622 is the most stringent test method in terms of repeatability and reproducibility. .

Products:

The Petro edition of Zetium

Date:

August 2 2017

Language:

English

Objectives:. (i) to estimate mineralogical composition specifically clay mineralogy from the spectra, (ii) to qualitatively compare mineral concentrations calculated from XRF and XRD analyses, as well as mineral groups identified through SEM and microscopic petrography work with NIR results.. NIR spectroscopy has been widely used in different scientific fields such as biology and medicine. However, it has been rarely used in mineral identification in finer sedimentary rocks specifically mudrocks. This work will allow us to verify the accuracy of this technique compared with XRF and XRD..

Products:

ASD range

Date:

May 25 2018

Language:

English