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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Mechanochemical synthesis of Mo-Cu nanocomposite powders
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Mechanochemical synthesis of Mo-Cu nanocomposite powders

机译：机械化学合成钼铜纳米复合粉

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摘要

Mo-Cu nanocomposite powders were successfully synthesized by the mechanochemical (high energy ball-milling) and hydrogen-reduction process at low temperature (650 °C). MoO_3 and CuO powders were used as precursors, which were calcined in air atmosphere to get CUM0O4-MoO_3 mixtures. The mechanochemical treatment of the CUM0O4-M0O3 powder mixtures caused a substantial increase of both the reduction activity of powder mixtures in hydrogen and the refinement of powders. It was accompanied by a transformation from CUM0O4 to CU3M02O9, playing a critical role in hydrogen reduction process. By optimizing the experimental parameters, Mo-30wt.% Cu nanocomposite powders with superfine particles with size ranging from 100 to 200 nm could be successfully obtained by mechanochemical-reduction method.
机译：通过机械化学（高能球磨）和低温（650°C）还原氢工艺成功合成了Mo-Cu纳米复合粉末。将MoO_3和CuO粉末用作前体，将其在空气气氛中煅烧以获得CUM0O4-MoO_3混合物。对CUM0O4-M0O3粉末混合物的机械化学处理使粉末混合物在氢气中的还原活性和粉末的细化度大大提高。它伴随着从CUM0O4到CU3M02O9的转变，在氢还原过程中发挥了关键作用。通过优化实验参数，可以通过机械化学还原法成功地制得粒径为100〜200 nm的Mo-30wt。％的Cu纳米复合粉。

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