【摘要】 采用高能球磨法制备了Mg10Ni-X合金（X=MWCNTs、TiF₃、MWCNTs-TiF₃），研究了单独添加MWCNTs/TiF₃催化剂和复合添加MWCNTs-TiF₃催化剂对Mg10Ni合金颗粒形貌、物相组成和活化行为的影响。结果表明，在Mg10Ni合金中添加催化剂，高能球磨处理后Mg10Ni-X合金的颗粒尺寸会不同程度地减小，相较于TiF₃催化剂，MWCNTs催化剂对颗粒的细化效果更好，且复合添加MWCNTs-TiF₃催化剂后颗粒的细化效果最好；复合添加MWCNTs-TiF₃催化剂的Mg10Ni-MWCNTs-TiF₃合金在高能球磨后，TiF₃和MWCNTs各自的微观结构并没有发生改变，合金中Mg₂Ni相含量和Mg₂Ni相晶胞体积从大至小顺序为：Mg10Ni-MWCNTs-TiF₃>Mg10Ni-MWCNTs>Mg10Ni-TiF₃>Mg10Ni。添加MWCNTs和TiF₃催化剂后合金的活化性能都会有不同程度改善，TiF₃催化剂对活化性能的改善效果优于MWCNTs，且复合添加MWCNTs-TiF₃催化剂后合金的活化性能最好。更多还原

【Abstract】 Mg10Ni-X alloys（X=MWCNTs, TiF₃ , MWCNTs-TiF₃ ）were prepared by high-energy ball milling, the effects of MWCNTs/TiF₃ catalysts added alone and MWCNTs TiF₃ catalysts added together on the particle morphology, phase composition and activation behavior of Mg10Ni alloys were studied. The results show that the particle size of Mg10Ni-X alloy after high-energy ball milling treatment reduces in varying degrees by adding catalyst to Mg10Ni alloy. Compared with TiF₃ catalyst, MWCNTs catalyst has better particle refining effect, and the particle refining effect of composite addition of MWCNTs-TiF₃ catalyst is the best. After high-energy ball milling of Mg10Ni-MWCNTs-TiF₃ alloy with MWCNTs-TiF₃ catalyst, the microstructures of TiF₃ and MWCNTs have not changed. The order of Mg₂Ni phase content and Mg₂Ni phase cell volume in the alloy from large to small is: Mg10Ni-MWCNTs-TiF₃ >Mg10Ni-MWCNTs>Mg10Ni-TiF₃ >Mg10Ni. The activation performance of the alloy improves in varying degrees after the addition of MWCNTs and TiF₃ catalysts, the improvement effect of TiF₃ catalyst on the activation performance is better than MWCNTs, and the activation performance of the alloy after adding MWCNTs-TiF₃ catalyst is the best.更多还原