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The mechanical properties of hypereutectic Al-Si alloys are mainly determined by size and morphology of the primary silicon phase. So, optical microscopy (OM) and X-ray diffraction (XRD) were adopted to study affection of Nd on primary silicon of hypereutectic Al-15%Si alloy in this paper. The results of OM showed that pure Nd could effectively refine primary silicon of hypereutectic Al-15%Si alloy...
La1−xSrxCo1−yFeyO3 cathode materials for solid oxide fuel cells were prepared by the microwave synthesis method. The reaction mechanism was studied using a thermal analysis method. The influences of microwave synthesis conditions were examined and the characteristics of the samples were determined by X-ray diffraction and scanning electron microscopy. It was found that the optimum conditions...
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