| 快淬La-Mg-Ni系贮氢电极合金的结构与电化学性能 |
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| 引用本文： | 董小平,张羊换,冯猛,王国清,王新林. 快淬La-Mg-Ni系贮氢电极合金的结构与电化学性能[J]. 材料导报, 2005, 19(4): 124-127 |
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| 作者姓名： | 董小平 张羊换 冯猛 王国清 王新林 |
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| 作者单位： | 1. 内蒙古科技大学材料工程学院,包头,014010;钢铁研究总院功能材料研究所,北京,100081
2. 钢铁研究总院功能材料研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金 |
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| 摘 要： | 铸态及快淬态La2Mg(Ni0 85Co0.15)9Cr01贮氢电极合金主要由(La,Mg)Ni3相(PuNi 3型结构),LaNi5相以及少量的LaNi2相组成,各相的含量与淬速有关.与铸态合金相比较,快淬态合金放电平台电压降低,快淬使合金的循环寿命都有不同程度的提高.铸态和快淬态合金均具有良好的活化性能.
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| 关 键 词： | La-Mg-Ni系 贮氢电极合金 快淬工艺 结构特性 电化学性能 |
The Structures and Electrochemical Properties of La-Mg-Ni System Hydrogen Storage Electrode Alloy |
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| DONG Xiaoping,ZHANG Yanghuan,FENG Meng,WANG Guoqing,WANG Xinlin. The Structures and Electrochemical Properties of La-Mg-Ni System Hydrogen Storage Electrode Alloy[J]. Materials Review, 2005, 19(4): 124-127 |
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| Authors: | DONG Xiaoping ZHANG Yanghuan FENG Meng WANG Guoqing WANG Xinlin |
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| Abstract: | La_2Mg(Ni_(0.85)Co_(0.15))_9Cr_(0.1) hydrogen storage electrode alloy prepared by casting and rapid quench- ing consists of(La,Mg)Ni_3 phase(PuNi_3-type structure),LaNi_5 phase and a small amount of LaNi_2 phae.The rela- tive amount of each phase in the alloys depends on the quenching rate.Compared with as-cast alloy,discharge plateau voltage decreases in the as-quenched alloys.The cycle lives of as-quenched alloys increase slightly with the increase of quenching rate.The as-cast and quenched alloys have an excellent activation performance. |
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| Keywords: | La-Mg-Ni system hydrogen storage electrode alloy rapid quenching technique structure characteristics electrochemical properties |
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