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运用X射线衍射、扫描电镜及粒度分析等方法表征了机械合金化制备Mg/MmNi5-x(CoAlMn)x复合储氢合金的结构,通过PCT曲线研究了其储氢性能.结果表明,在适当的球磨条件下能够获得纳米晶结构的Mg/MmNi5-x(CoAlMn)x复合储氢合金,与MmNi5-x(CoAlMn)x合金相比,复合储氢合金的活化性能及储氢量有明显提高.此外,还考察了Mg含量对复合储氢合金的组织结构及储氢性能的影响.

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