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Elham Mohseni-Sohiand Farshid Kashani Bozorg, The role of Al substitution on the phase evolution in synthesized Mg2Cu nanoparticles: An insight from X-ray diffraction analysis, Int. J. Miner. Metall. Mater.,(2021). https://doi.org/10.1007/s12613-021-2368-1
Cite this article as:
Elham Mohseni-Sohiand Farshid Kashani Bozorg, The role of Al substitution on the phase evolution in synthesized Mg2Cu nanoparticles: An insight from X-ray diffraction analysis, Int. J. Miner. Metall. Mater.,(2021). https://doi.org/10.1007/s12613-021-2368-1
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  • Research Article

    The role of Al substitution on the phase evolution in synthesized Mg2Cu nanoparticles: An insight from X-ray diffraction analysis

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    • In this study, the effect of Mg replacement with Al on the discharge capacity of Mg2Cu powder mixture is investigated. The mixture of nanocrystalline powder is prepared via mechanical alloying (MA) technique with a high energy planetary ball mill. In addition, different moles of Al are substituted to Mg2Cu powder (0.05, 0.1, 0.15, 0.2, and 0.3). X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) are used to analyze changes in structure, morphology, and grain size. The obtained powder is utilized as an anode in a nickel-metal hydride battery (Ni-MH). In the specimens with 0.05 M Al content, the orthorhombic structure of Mg2Cu is emerged after 5 hours milling. The results reveal that more than 0.2 M Al substitution leads to an appearance of MgCu2 peaks. Al substitution does not affect microstructure uniformity; however, it causes a decrease in crystalline size and lattice parameters. The SAD pattern elucidates that the electrode with the Mg1.9Al0.1Cu chemical composition and 20 hours milling has the maximum discharge capacity.

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        沈阳化工大学材料科学与工程学院 沈阳 110142

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