Use of integrated intensities of X-ray powder diffraction patterns of Mg1 − xZn x O solid solutions for the quantitative determination of their composition

Abstract

X-ray diffraction spectra were obtained for polycrystalline samples of Mg1 − xZnxO solid solutions (x = 0.3, 0.5, 0.6, and 0.7) by X-ray powder diffraction. The theoretical integrated intensity ratio between the 111 and 002 reflections was plotted versus the percentage of zinc in the solid solutions. The possibility of extracting information on polycrystalline samples (the composition and the presence of microstructural features) from comparison of the theoretical and experimental integrated intensity ratios between the 111 and 002 reflections was investigated. The Le Bail procedure for the extraction of integrated intensities from X-ray powder diffraction patterns, followed by the use of these intensities in calculations with the SHELX-97 program package, was tested for the determination of the zinc fraction in polycrystalline samples of Mg1 − xZnxO solid solutions.