Three-Dimensional Atomic Structure of Grain Boundaries Resolved by Atomic-Resolution Electron Tomography
文献类型:期刊论文
作者 | Wang, Chunyang; Duan, Huichao; Chen, Chunjin; Wu, Peng; Qi, Dongqing; Ye, Hengqiang; Jin, Hai-Jun; Xin, Huolin L.; Du, Kui |
刊名 | MATTER |
出版日期 | 2020-12-02 |
卷号 | 3期号:6页码:1999-2011 |
DOI | 10.1016/j.matt.2020.09.003 |
英文摘要 | Grain boundaries (GBs) determine the properties of polycrystals, and tailoring the GB structure offers a promising method for the discovery and engineering of new materials. However, GB structures are far from well understood because of their structural complexity and limitations of conventional projection imaging methods. Here, we decipher three-dimensional atomic structure and crystallography of GBs in nanometals using atomic-resolution electron tomography. Unlike conventional descriptions, whereby they are either straight or curved planar planes with one-dimensional translational symmetry, we show that the high-angle GBs completely lose translational symmetry due to undulated curvature related to configurations of structural units. Moreover, we directly visualize kinks and jogs at the single-atom scale in dislocation-type GBs and investigate their mobilities. Our findings bring new insights to the conventional wisdom of GBs and show the importance of developing methods to include the non-planar nature of GBs to statistically evaluate the behavior of GBs in modeling studies. |
WOS记录号 | WOS:000598228500001 |
源URL | [http://ir.imr.ac.cn/handle/321006/82316] |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | Wang, Chunyang,Duan, Huichao,Chen, Chunjin,et al. Three-Dimensional Atomic Structure of Grain Boundaries Resolved by Atomic-Resolution Electron Tomography[J]. MATTER,2020,3(6):1999-2011. |
APA | Wang, Chunyang.,Duan, Huichao.,Chen, Chunjin.,Wu, Peng.,Qi, Dongqing.,...&Du, Kui.(2020).Three-Dimensional Atomic Structure of Grain Boundaries Resolved by Atomic-Resolution Electron Tomography.MATTER,3(6),1999-2011. |
MLA | Wang, Chunyang,et al."Three-Dimensional Atomic Structure of Grain Boundaries Resolved by Atomic-Resolution Electron Tomography".MATTER 3.6(2020):1999-2011. |
入库方式: OAI收割
来源:金属研究所
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