| Hydrogen storage properties of V＋TiFe0.85Mn0.15 multi—phase alloys made by mechanical alloying |
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| 引用本文： | 陈长聘,王微,徐海鸥,陈昀.Hydrogen storage properties of V＋TiFe0.85Mn0.15 multi—phase alloys made by mechanical alloying[J].中国有色金属学会会刊,2002,12(3):404-408. |
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| 作者姓名： | 陈长聘 王微 徐海鸥 陈昀 |
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| 作者单位： | DepartmentofMaterialsScienceandEngineering,ZhejingUniversity,Hangzhou310027,China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | The mechanical alloying technique was used to make multi-phase alloys V TiFe0.85Mn0.15.Their hydrogen storage properties were characterized and compared with that of the polycrystalline alloys made by casting.It was found that the ball milled alloys can absorb hydrogen at room temperature in the first cycle without prior activation.The 40% V 60% TiFe0.85Mn0.15 alloy made by mechanical alloying shows the best hydrogen storage property with the valid hydrogen capacity up 50 220mL/g at 293K and 4.0MPa, and the P-C-T behavior is also improved.The XRD and EDX analyses also show that the phase of these alloys contains.V,TiFe,γ-TiMnx,TiFe2 and α-FeV.The composition of these phases affects significantly the hydrogen storage properties of alloys.
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| 关 键 词： | TiFeMn 钒基合金 贮氢合金 机械合金化 |
Hydrogen storage properties of V+TiFe0.85Mn0.15 multi-phase alloys made by mechanical alloying |
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| Abstract: | The mechanical alloying technique was used to make multi-phase alloys V+TiFe0.85Mn0.15. Their hydrogen storage properties were characterized and compared with that of the polycrystalline alloys made by casting. It was found that the ball milled alloys can absorb hydrogen at room temperature in the first cycle without prior activation. The 40%V+60%TiFe0.85Mn0.15 alloy made by mechanical alloying shows the best hydrogen storage property with the valid hydrogen capacity up to 220mL/g at 293K and 4.0MPa, and the P-C-T behavior is also improved. The XRD and EDX analyses also show that the phase of these alloys contains V, TiFe, γ-TiMnx, TiFe2 and α-FeV. The composition of these phases affects significantly the hydrogen storage properties of alloys. |
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| Keywords: | V based alloys TiFeMn hydrogen storage property mechanical alloying (MA) |
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