| 退火处理对La1.5Mg0.5Ni7.0(TiNi3)0.1储氢合金相结构和电化学性能的影响 |
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| 引用本文： | 邓安强,樊静波,夏广军,钱克农.退火处理对La1.5Mg0.5Ni7.0(TiNi3)0.1储氢合金相结构和电化学性能的影响[J].热加工工艺,2009,38(18). |
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| 作者姓名： | 邓安强 樊静波 夏广军 钱克农 |
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| 作者单位： | 宁夏大学机械工程学院,宁夏,银川,750021 |
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| 基金项目： | 宁夏大学科学研究基金资助项目，宁夏自然科学基金资助项目 |
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| 摘 要： | 采用感应熔炼+退火热处理的方法制备了储氢合金La1.5Mg0.5Ni7.0(TiNi3)0.1;用XRD、SEM和EPMA对合金的相结构和电化学性能进行了研究.结果表明:合金主要由Gd2Co7型和Ce2Ni7型的(La,Mg)2Ni7相和LaNi5相组成,合金退火1 h时第二相呈三维网络状沿主相晶界分布;此时,合金具有最好的电化学循环稳定性.
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| 关 键 词： | 储氢合金 Rietveld分析 三维网络 电化学性能 |
Influence of Annealing Treatment on Phase Structure and Electrochemical Properties of La1.5Mg0.5Ni7.0(TiNi3)0.1 Hydrogen Storage Alloys |
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| DENG Anqiang,FAN Jingbo,XIA Guangjun,QIAN Kenong.Influence of Annealing Treatment on Phase Structure and Electrochemical Properties of La1.5Mg0.5Ni7.0(TiNi3)0.1 Hydrogen Storage Alloys[J].Hot Working Technology,2009,38(18). |
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| Authors: | DENG Anqiang FAN Jingbo XIA Guangjun QIAN Kenong |
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| Abstract: | La_(1.5)Mg_(0.5)Ni_(7.0)(TiNi_3)_(0.1) hydrogen storage alloys were prepared by induction melting and annealing treatment. The phase structure and electrochemical properties of the alloy were studied by XRD, SEM and EPMA. The results show that the alloy are composed of multi-phase such as Gd_2Co_7-phase, Ce_2Ni_7-phase and LaNi_5 phase, the secondary phase precipitates along the grain boundary of main phase in the form of tree-dimensional network of the alloy annealed for 1 h, it has the best cycle stability at the same time. |
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| Keywords: | hydrogen storage alloy Rietveld analysis tree-dimensional network electrochemical properties |
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