用低熔点焊料合金球磨镁铝废料提高产氢量。
Enhanced Hydrogen Generation from Magnesium-Aluminum Scrap Ball Milled with Low Melting Point Solder Alloy.
作者信息
Buryakovskaya Olesya A, Ambaryan Grayr N, Suleimanov Musi Zh, Tarasenko Alexey B, Vlaskin Mikhail S
机构信息
Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia.
出版信息
Materials (Basel). 2023 Jun 18;16(12):4450. doi: 10.3390/ma16124450.
In this investigation, composite materials were manufactured of mixed scrap of Mg-based alloys and low melting point Sn-Pb eutectic by high energy ball milling, and their hydrogen generation performance was tested in NaCl solution. The effects of the ball milling duration and additive content on their microstructure and reactivity were investigated. Scanning electron microscopy (SEM) analysis indicated notable structural transformations of the particles during ball milling, and X-ray diffraction analysis (XRD) proved the formation of new intermetallic phases MgSn and MgPb, which were aimed to augment galvanic corrosion of the base metal. The dependency of the material's reactivity on the activation time and additive content occurred to be non-monotonic. For all tested samples ball milling during the 1 h provided, the highest hydrogen generation rates and yields as compared to 0.5 and 2 h and compositions with 5 wt.% of the Sn-Pb alloy, demonstrated higher reactivity than those with 0, 2.5, and 10 wt.%.
在本研究中，通过高能球磨法将镁基合金混合废料与低熔点锡铅共晶体制备成复合材料，并在氯化钠溶液中测试其产氢性能。研究了球磨时间和添加剂含量对其微观结构和反应活性的影响。扫描电子显微镜（SEM）分析表明，球磨过程中颗粒发生了显著的结构转变，X射线衍射分析（XRD）证明形成了新的金属间相MgSn和MgPb，其目的是增强基体金属的电偶腐蚀。材料的反应活性对活化时间和添加剂含量的依赖性呈现非单调变化。对于所有测试样品，与0.5小时、2小时以及含5 wt.%锡铅合金的成分相比，1小时的球磨提供了最高的产氢速率和产率，含5 wt.%锡铅合金的成分比含0 wt.%、2.5 wt.%和10 wt.%的成分表现出更高的反应活性。
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