| Dy替代M1对低钴贮氢合金组织和性能的影响 |
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| 引用本文： | 蔚如意,李全安,李肖丰,李克杰.Dy替代M1对低钴贮氢合金组织和性能的影响[J].功能材料,2007,38(4):602-604. |
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| 作者姓名： | 蔚如意 李全安 李肖丰 李克杰 |
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| 作者单位： | 河南科技大学材料科学与工程学院,河南洛阳471003 |
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| 基金项目： | 河南省杰出青年科学基金资助项目（0312000200）;河南省高校创新人才培养基金资助项目（豫高教[2002]129） |
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| 摘 要： | 采用多元合金化及A侧稀土元素Dy取代M1的方法，制备出了多元低钴贮氢合金M1（1-x）DyxNi3．90 Co0．3 M0．4 Cu0．15 Fe0．1 Sno．1 Ti0．05（x=0．00、0．05、0．10、0．15），研究了加Dy对合金的微观结构、组织以及电化学性能的影响。XRD及EDS分析表明，Dy能很好融入主相晶格中，未单独形成第二相。电化学测试表明，适量Dy的加入能够提高低钴舍金的放电容量，以及合金的充放电循环稳定性。
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| 关 键 词： | 贮氢合金 电化学性能 Dy |
| 修稿时间： | 2006-10-18 |
The effects of partial substitution of Ml on phase structures and properties of low Co hydrogen storage alloy |
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| YU Ru-yi,LI Quan-an, LI Xiao-feng,LI Ke-jie.The effects of partial substitution of Ml on phase structures and properties of low Co hydrogen storage alloy[J].Journal of Functional Materials,2007,38(4):602-604. |
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| Authors: | YU Ru-yi LI Quan-an LI Xiao-feng LI Ke-jie |
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| Affiliation: | School of Materials Engineering, Henan Unicersity of Science and Technology,Luoyan 471003,China |
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| Abstract: | The multi-component low-Co hydrogen storage alloy Ml_((1-x)) Dy_x Ni_(3.90) Co_(0.3) Mn_(0.4) Cu_(0.15)Fe_(0.1) Sn_(0.1)Ti_(0.05)(x =0.00,0.05,0.10,0.15)was prepared by the multi-component alloying and the substitution of M1 with Dy. The effects of partial substitution of Ml with Dy on the phase structure,microstructure and electrochemical properties were investigated.The results of XRD and EDS analyses indicated that Dy can melt into the lattice of the main phase very well and can not form the secondary phase.The electrochemical tests indicated that the ade- quate content of Dy (0.05) not only increases the discharge capacity but also improves the charge/discharge cyc- ling. |
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| Keywords: | hydrogen storage alloy electrochemical properties Dy |
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