CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Simulation of migration and coalescence of helium bubbles in nickel
Zhang, W; Han, H; Dai, JX; Ren, CL; Wang, CB; Yan, L; Huang, HF; Zhu, ZY
2019
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume518Issue:-Pages:48—53
Subtype期刊论文
AbstractThe mechanism of migration and coalescence of nanoscale helium bubbles was studied using molecular dynamics. Small helium bubbles in nickel were observed to migrate in a random-walk style at temperatures higher than 0.7 T-m (melting point). Coalescence occurred when two helium bubbles approached each other, leading to the formation of a large bubble. The motion of the helium bubbles in nickel proceeds by displacement of nickel atoms on the surface, which causes the rearrangement of other nickel atoms, resulting surface diffusion. These findings indicate that migration and coalescence may be the possible growth mechanism for small helium bubbles in nickel at high temperature. (C) 2019 Published by Elsevier B.V.
KeywordMOLECULAR-DYNAMICS MECHANISM ENERGY DIFFUSION GROWTH COPPER NI
DOI10.1016/j.jnucmat.2019.02.023
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31813
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China;
2.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhang, W,Han, H,Dai, JX,et al. Simulation of migration and coalescence of helium bubbles in nickel[J]. JOURNAL OF NUCLEAR MATERIALS,2019,518(-):48—53.
APA Zhang, W.,Han, H.,Dai, JX.,Ren, CL.,Wang, CB.,...&Zhu, ZY.(2019).Simulation of migration and coalescence of helium bubbles in nickel.JOURNAL OF NUCLEAR MATERIALS,518(-),48—53.
MLA Zhang, W,et al."Simulation of migration and coalescence of helium bubbles in nickel".JOURNAL OF NUCLEAR MATERIALS 518.-(2019):48—53.
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