The occupying activities of helium in ball-milled hydrogen-storage alloys

IMR OpenIR

	The occupying activities of helium in ball-milled hydrogen-storage alloys
	Liu, S ; Zheng, H ; Zhao, Y ; Xiong, LY ; Wang, LB ; Yang, X
通讯作者	Liu, S()
	2003-03-01
发表期刊	ACTA PHYSICA SINICA
ISSN	1000-3290
卷号	52 期号:3 页码:756-760
摘要	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.
关键词	positron lifetime helium injection ball mill hydrogen storage alloy
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000181642200047
出版者	CHINESE PHYSICAL SOC
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/117051
专题	中国科学院金属研究所
通讯作者	Liu, S
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Peoples R China
推荐引用方式 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.