| 新型钛钒系贮氢电极合金 |
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| 引用本文： | 朱云峰,潘洪革,刘永锋,李锐,金勤伟,王启东.新型钛钒系贮氢电极合金[J].中国有色金属学报,2003,13(3):680-684. |
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| 作者姓名： | 朱云峰 潘洪革 刘永锋 李锐 金勤伟 王启东 |
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| 作者单位： | 浙江大学,材料科学与工程系,杭州,310027 |
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| 基金项目： | 全国优秀博士学位论文作者专项资金资助项目 (2 0 0 0 0 5 2 ) |
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| 摘 要： | 研究了新型钛钒系贮氢电极合金Ti0.8Zr0.2V2.665Mn0.535Cr0.8Ni的相结构、微观组织及电化学性能。XRD及EDS分析表明：铸态合金主要由C14 Laves相母体和树枝晶的钒基固溶体相组成，同时由于成分偏析的缘故，合金中还存在少量的TiNi基的第三相。热处理使得合金中C14 Laves相及钒基固溶体相的晶胞参数和晶胞体积增大，促进合金成分的均匀化，同时极大地改善了合金电极的综合电化学性能。
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| 关 键 词： | 钛钒系 贮氢电极合金 C14 Laves相 TiNi相 电化学性能 XRD EDS |
| 文章编号： | 1004-0609(2003)03-0680-05 |
| 修稿时间： | 2002年8月8日 |
New type TiV-based hydrogen storage electrode alloy |
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| ZHU Yun-feng,PAN Hong-ge,LIU Yong-feng,LI Rui,JIN Qin-wei,WANG Qi-dong.New type TiV-based hydrogen storage electrode alloy[J].The Chinese Journal of Nonferrous Metals,2003,13(3):680-684. |
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| Authors: | ZHU Yun-feng PAN Hong-ge LIU Yong-feng LI Rui JIN Qin-wei WANG Qi-dong |
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| Abstract: | The phase structure, microstructure and electrochemical properties of the new type TiV-based hydrogen storage electrode alloy Ti 0.8Zr 0.2V 2.665Mn 0.535Cr 0.8Ni were studied. It is found by XRD and EDS analysis that the as-cast alloy mainly consists of the C14 Laves phase matrix and the dendritic V-based solid solution phase. Besides, a small amount of third TiNi-based phase precipitates in the as-cast alloy due to the compositional segregation during solidification. Annealing treatment leads to the increaseing in lattice parameters and unit cell volumes of both the C14 Laves phase and the V-based solid solution phase, makes the alloy composition more homogeneous and improves greatly the overall electrochemical properties of the alloy electrode. |
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| Keywords: | Ti V hydrogen storage electrode alloy C14 Laves phase TiNi-based phase electrochemical property |
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