摘要
采用高能球磨法制备了Mg10Ni-X合金(X=MWCNTs、TiF_(3)、MWCNTs-TiF_(3)),研究了单独添加MWCNTs/TiF_(3)催化剂和复合添加MWCNTs-TiF_(3)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TiF_(3)催化剂,MWCNTs催化剂对颗粒的细化效果更好,且复合添加MWCNTs-TiF_(3)催化剂后颗粒的细化效果最好;复合添加MWCNTs-TiF_(3)催化剂的Mg10Ni-MWCNTs-TiF_(3)合金在高能球磨后,TiF_(3)和MWCNTs各自的微观结构并没有发生改变,合金中Mg_(2)Ni相含量和Mg_(2)Ni相晶胞体积从大至小顺序为:Mg10Ni-MWCNTs-TiF_(3)>Mg10Ni-MWCNTs>Mg10Ni-TiF_(3)>Mg10Ni。添加MWCNTs和TiF_(3)催化剂后合金的活化性能都会有不同程度改善,TiF_(3)催化剂对活化性能的改善效果优于MWCNTs,且复合添加MWCNTs-TiF_(3)催化剂后合金的活化性能最好。
Mg10Ni-X alloys(X=MWCNTs,TiF_(3),MWCNTs-TiF_(3))were prepared by high-energy ball milling,the effects of MWCNTs/TiF_(3) catalysts added alone and MWCNTs TiF_(3) 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 TiF_(3) catalyst,MWCNTs catalyst has better particle refining effect,and the particle refining effect of composite addition of MWCNTs-TiF_(3) catalyst is the best.After high-energy ball milling of Mg10Ni-MWCNTs-TiF_(3) alloy with MWCNTs-TiF_(3) catalyst,the microstructures of TiF_(3) and MWCNTs have not changed.The order of Mg_(2)Ni phase content and Mg_(2)Ni phase cell volume in the alloy from large to small is:Mg10Ni-MWCNTs-TiF_(3)>Mg10Ni-MWCNTs>Mg10Ni-TiF_(3)>Mg10Ni.The activation performance of the alloy improves in varying degrees after the addition of MWCNTs and TiF_(3) catalysts,the improvement effect of TiF_(3) catalyst on the activation performance is better than MWCNTs,and the activation performance of the alloy after adding MWCNTs-TiF_(3) catalyst is the best.
作者
许江
李继超
刘玉法
XU Jiang;LI Jichao;LIU Yufa(School of Automotive Technology,Sichuan Vocational&Technical College,Suining 629000,China;School of Materials Science and Engineering,Sichuan University of Light Industry and Chemical Technology,Zigong 643002,China;School of Materials and Chemistry and Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China)
出处
《粉末冶金工业》
北大核心
2024年第5期111-117,128,共8页
Powder Metallurgy Industry
基金
教育部协同育人改革研究与实践项目(22060117003)
四川省教育科学“十三五”规划课题(XJK021JK013)
作者简介
许江(1988—),男,学士,讲师,主要研究方向为汽车电池材料等。
