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The occupying activities of helium in ball-milled hydrogen-storage alloys
Liu, S; Zheng, H; Zhao, Y; Xiong, LY; Wang, LB; Yang, X
Corresponding AuthorLiu, S()
2003-03-01
Source PublicationACTA PHYSICA SINICA
ISSN1000-3290
Volume52Issue:3Pages:756-760
AbstractThrough 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.
Keywordpositron lifetime helium injection ball mill hydrogen storage alloy
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000181642200047
PublisherCHINESE PHYSICAL SOC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/117051
Collection中国科学院金属研究所
Corresponding AuthorLiu, S
Affiliation1.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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