Knowledge Management System of Institute of Theoretical Physics, CAS
Zhou, WH; Zhang, CG; Li, YG; Zeng, Z; Zeng, Z (reprint author), Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China. | |
Creeping Motion of Self Interstitial Atom Clusters in Tungsten | |
发表期刊 | SCIENTIFIC REPORTS |
语种 | 英语 |
关键词 | Dislocation Loops Transition-metals Collision Cascades Defect Production Mobility Energy Diffusion Iron |
摘要 | The formation and motion features of self interstitial atom (SIA) clusters in tungsten are studied by molecular dynamics (MD) simulations. The static calculations show that the SIA clusters are stable with binding energy over 2 eV. The SIA clusters exhibit a fast one dimensional (1D) motion along < 111 >. Through analysis of the change of relative distance between SIAs, we find that SIAs jump in small displacements we call creeping motion, which is a new collective diffusion process different from that of iron. The potential energy surface of SIAs implicates that the creeping motion is due to the strong interaction between SIAs. These imply that several diffusion mechanism for SIA clusters can operate in BCC metals and could help us explore deep insight into the performance of materials under irradiation. |
2014 | |
ISSN | 2045-2322 |
卷号 | 4期号:-页码:5096 |
学科领域 | Physics |
DOI | 10.1038/srep05096 |
收录类别 | SCI |
项目资助者 | National Science Foundation of China [11275229, NSAFU1230202]; special Funds for Major State Basic Research Project of China (973) [2012CB933702]; Anhui Provincial Natural Science Foundation [1208085QA05]; Hefei Center for Physical Science and Technology [2012FXZY004]; CASHIPS ; National Science Foundation of China [11275229, NSAFU1230202]; special Funds for Major State Basic Research Project of China (973) [2012CB933702]; Anhui Provincial Natural Science Foundation [1208085QA05]; Hefei Center for Physical Science and Technology [2012FXZY004]; CASHIPS ; National Science Foundation of China [11275229, NSAFU1230202]; special Funds for Major State Basic Research Project of China (973) [2012CB933702]; Anhui Provincial Natural Science Foundation [1208085QA05]; Hefei Center for Physical Science and Technology [2012FXZY004]; CASHIPS ; National Science Foundation of China [11275229, NSAFU1230202]; special Funds for Major State Basic Research Project of China (973) [2012CB933702]; Anhui Provincial Natural Science Foundation [1208085QA05]; Hefei Center for Physical Science and Technology [2012FXZY004]; CASHIPS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/15754 |
专题 | SCI期刊论文 |
通讯作者 | Zeng, Z (reprint author), Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China. |
推荐引用方式 GB/T 7714 | Zhou, WH,Zhang, CG,Li, YG,et al. Creeping Motion of Self Interstitial Atom Clusters in Tungsten[J]. SCIENTIFIC REPORTS,2014,4(-):5096. |
APA | Zhou, WH,Zhang, CG,Li, YG,Zeng, Z,&Zeng, Z .(2014).Creeping Motion of Self Interstitial Atom Clusters in Tungsten.SCIENTIFIC REPORTS,4(-),5096. |
MLA | Zhou, WH,et al."Creeping Motion of Self Interstitial Atom Clusters in Tungsten".SCIENTIFIC REPORTS 4.-(2014):5096. |
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Creeping Motion of S(303KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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