Creeping Motion of Self Interstitial Atom Clusters in Tungsten
文献类型：期刊论文
| 作者 | Zhou, WH; Zhang, CG; Li, YG; Zeng, Z |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:-页码:5096 |
| 关键词 | DISLOCATION LOOPS TRANSITION-METALS COLLISION CASCADES DEFECT PRODUCTION MOBILITY ENERGY DIFFUSION IRON |
| ISSN号 | 2045-2322 |
| 通讯作者 | Zeng, Z (reprint author), Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China. |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | 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 |
| 原文出处 | http://dx.doi.org/10.1038/srep05096 |
| 语种 | 英语 |
| WOS记录号 | WOS:000336425400008 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15754]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 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.(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. |
入库方式： OAI收割
来源：理论物理研究所
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