| 机械合金化制备Mg76-xTi12Ni12Mnx（x=2,4,6,8）合金及其贮氢性能研究 |
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| 引用本文： | 蓝志强,蒋津辉,陆乾山,李泽超,郭进. 机械合金化制备Mg76-xTi12Ni12Mnx（x=2,4,6,8）合金及其贮氢性能研究[J]. 材料导报, 2011, 25(2): 70-73 |
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| 作者姓名： | 蓝志强 蒋津辉 陆乾山 李泽超 郭进 |
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| 作者单位： | 广西大学物理科学与工程技术学院有色金属及材料加工新技术教育部重点实验室,南宁,530004 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金重点项目，有色金属及材料加工新技术教育部重点实验室开放基金 |
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| 摘 要： | 利用机械合金化法制备了Mg76-xTi12Ni12Mnx(x=2,4,6,8)合金,并研究了Mn添加量对合金贮氢性能的影响。结果表明,在Mg76-xTi12Ni12Mnx(x=2,4,6,8)合金中合金相主要由Mg2Ni和Ti2Ni相组成,合金最大贮氢量分别为3.47%、3.32%、3.60%和3.11%(质量分数,下同),合金氢化物的分解热依次为-79.2kJ/mol、-78.0kJ/mol、-73.7kJ/mol和-73.6kJ/mol,添加Mn可降低合金氢化物的稳定性,改善其热力学性能,非晶化不利于提高合金的贮氢性能。
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| 关 键 词： | Mg-Ti合金 贮氢性能 机械合金化 |
Preparation of Mg76-xTi12Ni12Mnx(x=2,4,6,8)Alloys by Mechanical Alloying and Their Hydrogen Storage Properties |
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| LAN Zhiqiang,JIANG Jinhui,LU Qianshan,LI Zechao,GUO Jin. Preparation of Mg76-xTi12Ni12Mnx(x=2,4,6,8)Alloys by Mechanical Alloying and Their Hydrogen Storage Properties[J]. Materials Review, 2011, 25(2): 70-73 |
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| Authors: | LAN Zhiqiang JIANG Jinhui LU Qianshan LI Zechao GUO Jin |
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| Affiliation: | (Key Laboratory of New Processing Technology for Nonferrous Metals and Materials of Ministry of Education,College of Physical Science and Technology,Guangxi University,Nanning 530004) |
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| Abstract: | Mg76-xTi12Ni12Mnx(x=2,4,6,8) alloys were prepared by mechanical alloying and the effects of Mn content on the hydrogen storage properties were investigated systematically.For Mg76-xTi12Ni12Mnx(x=2,4,6,8) alloys,the main binary alloy phase is consisted of Mg2Ni and Ti2Ni phase,the maximum hydrogen storage capacity is 3.47wt%,3.32wt%,3.60wt% and 3.11wt% respectively.The hydrides decomposition enthalpies of Mg76-xTi12Ni12-Mnx(x=2,4,6,8) alloys are-79.2kJ/mol,-78.0kJ/mol,-73.7kJ/mol and-73.6kJ/mol.The stability of Mg76-xTi12Ni12Mnx(x=2,4,6,8) alloy hydride is reduced and the thermodynamics performance is also improved with addition of Mn element.The result shows that amorphous is unfavorable to improve hydrogen storage performance. |
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| Keywords: | Mg-Ti alloy hydrogen storage property mechanical alloying |
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