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| Helium nano-bubble bursting near the nickel surface | |
| Gong, HF; Liu, M; Gao, F; Li, R; Yan, Y; Huang, H; Liu, T; Ren, QS | |
| 2017 | |
| Source Publication | CHINESE PHYSICS B
 |
| ISSN | 1674-1056 |
| Volume | 26Issue:11Pages:- |
| Subtype | 期刊论文 |
| Abstract | 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. |
| Keyword | Embedded-atom Potentials Point-defect Properties Molecular-dynamics Gas-release Metals Tungsten Implantation Irradiation Impurities Diffusion |
| DOI | 10.1088/1674-1056/26/11/113401 |
| Indexed By | SCI |
| WOS Keyword | EMBEDDED-ATOM POTENTIALS ; POINT-DEFECT PROPERTIES ; MOLECULAR-DYNAMICS ; GAS-RELEASE ; METALS ; TUNGSTEN ; IMPLANTATION ; IRRADIATION ; IMPURITIES ; DIFFUSION |
| Language | 英语 |
| WOS ID | WOS:000414688800001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28674 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation 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):-. |
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| File Name/Size | DocType | Version | Access | License | ||
| Helium nano-bubble b（1203KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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