
This sixth generation benchtop diffraction system is a perfect XRD solution for R&D, QA/QC and teaching. Available high-speed detector, sample-changer and monochromator make it incredibly flexible.
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Sulfide corrosion is a common occurrence in petroleum (gas) pipelines and sanitary sewers. Design of new corrosion resistant materials is based on the knowledge of chemical compounds present in the sulfide corrosion powder.
X-ray diffraction data were collected on a sulfide corrosion sample using Rigaku's Ultima IV multipurpose diffraction system. Phases were identified as shown in Figure 1.
Based on a model structure, calculated from these phases, Rietveld analysis was performed. Figure 2 shows the experimental data (orange), the resultant calculated data (green) and the residual (top blue).
A screen shot from the Jade Whole Pattern Fitting ( WPF ) software module for Rietveld analysis shows the residual parameters of the refinement including R/E (Figure 3).
R/E is a fitting parameter that quantifies the result of the fit, relative to what is theoretically possible. Quantitative results from the analysis are presented in Figure 4.
The Ultima IV represents the state-of-the-art in multipurpose X-ray diffraction (XRD) systems. Incorporating Rigaku's patented cross beam optics (CBO) technology for permanently mounted, permanently aligned and user-selectable parallel and focusing geometries, the Ultima IV X-ray diffractometer can perform many different measurements...fast. Read more about Rigaku's Ultima IV...