| Defect formation and bending properties in graphite under He atom implantation investigated by molecular dynamics method | |
| Long, X. H.1,2; Setyawan, W.3; Tai, K. P.4; Liu, Y.1,2; Yu, M. S.1,2; Wang, Z. Q.1,2,5; Gao, N.1,2,6; Wang, X. L.1,2 | |
| Corresponding Author | Gao, N.(ning.gao@sdu.edu.cn) ; Wang, X. L.(xuelinwang@sdu.edu.cn) |
| 2022-05-01 | |
| Source Publication | CARBON
 |
| ISSN | 0008-6223 |
| Volume | 191Pages:350-361 |
| Abstract | The formation and evolution of radiation defects and their effects on bending property of a single graphite under low energy helium atom implantation have been studied at atomic scale through mo-lecular dynamics simulations. Various simple interstitial and vacancy defects are observed during the implantation process, which is a function of incident energy and cross section of helium-carbon inter-action. Large defects are observed after continuous helium atom implantations. The effects of incident energy on the density, size and distribution of defects are analyzed in detail. Furthermore, the kinetic evolution process of radiation defects at different annealing temperatures have also been simulated, including the migration, aggregation, transformation, coalescence, and self-healing. The large defect clusters, crossing several carbon layers, have been confirmed to be the primary reasons that affect the bending property of graphite. All these results provide a new understanding for further applications of graphite in nuclear reactors. (c) 2022 Elsevier Ltd. All rights reserved. |
| Keyword | Molecular dynamics Graphite Atomic implantation Radiation defects Bending properties |
| Funding Organization | National Natural Science Foundation of China ; Ministry of Science and Technology of China ; U.S. Department of Energy through the Office of Fusion Energy Sciences |
| DOI | 10.1016/j.carbon.2022.01.059 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[12075141] ; National Natural Science Foundation of China[51927803] ; National Natural Science Foundation of China[52073290] ; National Natural Science Foundation of China[11675230] ; Ministry of Science and Technology of China[2017YFA0700702] ; U.S. Department of Energy through the Office of Fusion Energy Sciences[DE-AC05-76RLO-1830] |
| WOS Research Area | Chemistry ; Materials Science |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000760412400011 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173193 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Gao, N.; Wang, X. L. |
| Affiliation | 1.ShanDong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China 2.ShanDong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Qingdao 266237, Peoples R China 3.Pacific Northwest Natl Lab, Richland, WA 99352 USA 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 5.Jilin Univ, Key Lab Bion Engn, Minist Educ, Changchun, Peoples R China 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Long, X. H.,Setyawan, W.,Tai, K. P.,et al. Defect formation and bending properties in graphite under He atom implantation investigated by molecular dynamics method[J]. CARBON,2022,191:350-361. |
| APA | Long, X. H..,Setyawan, W..,Tai, K. P..,Liu, Y..,Yu, M. S..,...&Wang, X. L..(2022).Defect formation and bending properties in graphite under He atom implantation investigated by molecular dynamics method.CARBON,191,350-361. |
| MLA | Long, X. H.,et al."Defect formation and bending properties in graphite under He atom implantation investigated by molecular dynamics method".CARBON 191(2022):350-361. |
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