Electrochemical characteristics of amorphous Mg0.9M0.1Ni (M=Ni, Ti, Zr, Co and Si) ternary alloys prepared by mechanical alloying
Electrochemical characteristics of amorphous Mg0.9M0.1Ni (M=Ni, Ti, Zr, Co and Si) ternary alloys prepared by mechanical alloying
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DOI：
10.1016/s0925-8388(00)01130-0
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发表时间：
2000-10
影响因子：
6.2
通讯作者：
H. Ye;Y. Lei;Lingshen Chen;Haopeng Zhang
中科院分区：
文献类型：
--
作者：
H. Ye;Y. Lei;Lingshen Chen;Haopeng Zhang
采用机械合金化方法制备了Mg0.9M0.1Ni（M=Ni，Ti，Zr，Co或Si）三元合金。XRD结果表明，所有三元合金均为非晶态结构，除Co外，均含有微量的替代元素。研究了所有三元合金的电化学性能，并与MA非晶态MgNi合金进行了比较。实验结果表明，三元合金具有较大的室温放电容量，但低于MA MgNi合金。用Ni、Ti、Co、Si部分取代Mg可提高合金的循环稳定性和高倍率放电性能。综合来看，非晶态Mg_（0.9）Ti_（0.1）Ni合金的综合性能最好。
Mg0.9M0.1Ni (M=Ni, Ti, Zr, Co or Si) ternary alloys were prepared by mechanical alloying (MA). The XRD result showed that all ternary alloys were of amorphous structure, with a trace of substitution elements, except for Co. Electrochemical characteristics of all ternary alloys were studied which were compared to MA amorphous MgNi alloy. Experimental results showed that the ternary alloys had a large discharge capacity at room temperature but lower than that of the MA MgNi alloy. Partially substituting Mg with Ni, Ti, Co, Si could lead to the improvement of cyclic stability and high rate discharge capability. Over all, amorphous Mg0.9Ti0.1Ni showed the best synthesis properties.