| The occupying activities of helium in ball-milled hydrogen-storage alloys | |
| Liu, S; Zheng, H; Zhao, Y; Xiong, LY; Wang, LB; Yang, X | |
| Corresponding Author | Liu, S() |
| 2003-03-01 | |
| Source Publication | ACTA PHYSICA SINICA
 |
| ISSN | 1000-3290 |
| Volume | 52Issue:3Pages:756-760 |
| Abstract | Through the measurements of positron lifetime and analysis of structure, the properties of helium in the ball-milled LaNi4.75 Al-0.25 and Zr50Co50 alloys were investigated. It was found that the amount of the injected helium increases with increasing helium pressure. It is comparatively easier for helium to enter the LaNi4.75 Al-0.25 alloy. The difference of the positron lifetime parameters between the above two specimens shows that the properties of the injected helium are different. For Zr50Co50, helium occupies the intersection of two or three crystallite interfaces and/or cluster of vacancies at grain boundaries or groups of vacancies firstly. With increasing pressure of the helium atmosphere, a small amount of helium enters the free volume of single vacancies, and thus vacancy-helium compounds form. For LaNi4.75Al0.25 , helium enters the free volume of single; vacancies and vacancy-helium compounds form. |
| Keyword | positron lifetime helium injection ball mill hydrogen storage alloy |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000181642200047 |
| Publisher | CHINESE PHYSICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/117051 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, S |
| Affiliation | 1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, S,Zheng, H,Zhao, Y,et al. The occupying activities of helium in ball-milled hydrogen-storage alloys[J]. ACTA PHYSICA SINICA,2003,52(3):756-760. |
| APA | Liu, S,Zheng, H,Zhao, Y,Xiong, LY,Wang, LB,&Yang, X.(2003).The occupying activities of helium in ball-milled hydrogen-storage alloys.ACTA PHYSICA SINICA,52(3),756-760. |
| MLA | Liu, S,et al."The occupying activities of helium in ball-milled hydrogen-storage alloys".ACTA PHYSICA SINICA 52.3(2003):756-760. |
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