Helium nano-bubble bursting near the nickel surface

doi:10.1088/1674-1056/26/11/113401

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Helium nano-bubble bursting near the nickel surface
	Gong, HF; Liu, M; Gao, F; Li, R; Yan, Y; Huang, H; Liu, T; Ren, QS
刊名	CHINESE PHYSICS B
	2017
卷号	26 期号:11 页码:-
关键词	Embedded-atom Potentials Point-defect Properties Molecular-dynamics Gas-release Metals Tungsten Implantation Irradiation Impurities Diffusion
ISSN号	1674-1056
DOI	10.1088/1674-1056/26/11/113401
文献子类	期刊论文
英文摘要	We have investigated the expansion and bursting of a helium nano-bubble near the surface of a nickel matrix using a molecular dynamics simulation. The helium atoms erupt from the bubble in an instantaneous and volcano-like process, which leads to surface deformation consisting of cavity formation on the surface, along with modification and atomic rearrangement at the periphery of the cavity. During the kinetic releasing process, the channel may undergo the "open" and "close" states more than once due to the variation of the stress inside the nano-bubble. The ratio between the number of helium atoms and one of vacancies can directly reflect the releasing rate under different temperatures and crystallographic orientation conditions, respectively. Moreover, a special relationship between the stress and He-to-vacancy ratio is also determined. This model is tested to compare with the experimental result from Hastelloy N alloys implanted by helium ions and satisfactory agreement is obtained.
WOS关键词	EMBEDDED-ATOM POTENTIALS ; POINT-DEFECT PROPERTIES ; MOLECULAR-DYNAMICS ; GAS-RELEASE ; METALS ; TUNGSTEN ; IMPLANTATION ; IRRADIATION ; IMPURITIES ; DIFFUSION
语种	英语
WOS记录号	WOS:000414688800001
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28674]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Gong, HF,Liu, M,Gao, F,et al. Helium nano-bubble bursting near the nickel surface[J]. CHINESE PHYSICS B,2017,26(11):-.
APA	Gong, HF.,Liu, M.,Gao, F.,Li, R.,Yan, Y.,...&Ren, QS.(2017).Helium nano-bubble bursting near the nickel surface.CHINESE PHYSICS B,26(11),-.
MLA	Gong, HF,et al."Helium nano-bubble bursting near the nickel surface".CHINESE PHYSICS B 26.11(2017):-.