| 合金元素掺杂对TiV_(2.1)Ni_(0.4)合金相结构及电化学性能的影响 |
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| 引用本文： | 吴怡芳,奚正平,马晓波,陈元振,李成山,柳永宁.合金元素掺杂对TiV_(2.1)Ni_(0.4)合金相结构及电化学性能的影响[J].稀有金属材料与工程,2010,39(Z1). |
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| 作者姓名： | 吴怡芳 奚正平 马晓波 陈元振 李成山 柳永宁 |
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| 作者单位： | 1. 西北有色金属研究院,陕西,西安,710016
2. 西安交通大学,陕西,西安,710049 |
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| 摘 要： | 研究了合金元素掺杂对TiV2.1Ni0.4系列合金的相结构及电化学性能的影响。XRD分析表明,该合金由V基固溶体主相和以网状分布于主相晶界的Ti2Ni第二相和C15型Laves第三相组成。BEI、EDS和电化学测试表明,Zr、Cu合金元素进入第二相晶格而使合金的电化学容量略降,但提高了合金的循环性能;Cr元素由于大部分进入到主相晶格而使合金的电化学循环性能大幅度提高,经40次循环后容量保持率仍达88.4%,但最大放电容量有所降低。
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| 关 键 词： | Ti-V基合金 电化学 掺杂 储氢 |
Effect of Elements Doping on the Phase Structure and Electrochemical Properties of TiV_(2.1)Ni_(0.4) Alloy |
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| Wu Yifang,Xi Zhengping,Ma Xiaobo,Chen Yuanzhen,Li Chengshan,Liu Yongning.Effect of Elements Doping on the Phase Structure and Electrochemical Properties of TiV_(2.1)Ni_(0.4) Alloy[J].Rare Metal Materials and Engineering,2010,39(Z1). |
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| Authors: | Wu Yifang Xi Zhengping Ma Xiaobo Chen Yuanzhen Li Chengshan Liu Yongning |
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| Affiliation: | Wu Yifang1,Xi Zhengping1,Ma Xiaobo2,Chen Yuanzhen2,Li Chengshan1,Liu Yongning2 (1.Northwest Institute for Nonferrous Metal Research,Xi'an 710016,China) (2.Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | The phase structure and electrochemical properties of TiV2.1Ni0.4 alloys doped with different elements were investigated.XRD analyses indicate that these alloys consist of a V-based solid solution main phase,a network structure of Ti2Ni secondary phase and C15 Laves third phase along grain boundaries of the main phase.BEI,EDS and electrochemical measurements show that Zr and Cu elements enter the crystal lattice of Ti2Ni secondary phase which depress a little the maximum capacity of the TiV2.1Ni0.4Zr0.06Cu0... |
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| Keywords: | Ti-V based alloy electrochemistry dope hydrogen storage |
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