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Analysis of Inhomogeneities in Hydrogen Storage Alloys: A Comparison of Different Methods

Analysis of Inhomogeneities in Hydrogen Storage Alloys: A Comparison of Different Methods
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摘要 In this work we have realized a simplified model to analyze compositional inhomogeneities in commercial hydrogen storage alloys. We have used it to evaluate the effect of the thermal annealing, together with calorimetric, PCIs and XRD measurement. We have compared results with composition distribution histograms based on Rietveld refinement of XRD patterns. Finally we studied the variation of α and β phases crystallographic parameters with H2 pressure. In this work we have realized a simplified model to analyze compositional inhomogeneities in commercial hydrogen storage alloys. We have used it to evaluate the effect of the thermal annealing, together with calorimetric, PCIs and XRD measurement. We have compared results with composition distribution histograms based on Rietveld refinement of XRD patterns. Finally we studied the variation of α and β phases crystallographic parameters with H2 pressure.
出处 《Crystal Structure Theory and Applications》 2012年第3期100-106,共7页 晶体结构理论与应用(英文)
关键词 HYDROGEN STORAGE ALLOYS INHOMOGENEITIES Sloping PLATEAU Hydrogen Storage Alloys Inhomogeneities Sloping Plateau
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