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DOI | 10.1126/science.aam8256 |
Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy | |
Yu, Zhiyang1,6; Cantwell, Patrick R.2; Gao, Qin3; Yin, Denise1; Zhang, Yuanyao4; Zhou, Naixie4; Rohrer, Gregory S.5; Widom, Michael3; Luo, Jian4; Harmer, Martin P.1 | |
2017-10-06 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6359页码:97-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The properties of materials change, sometimes catastrophically, as alloying elements and impurities accumulate preferentially at grain boundaries. Studies of bicrystals show that regular atomic patterns often arise as a result of this solute segregation at high-symmetry boundaries, but it is not known whether superstructures exist at general grain boundaries in polycrystals. In bismuth-doped polycrystalline nickel, we found that ordered, segregation-induced grain boundary superstructures occur at randomly selected general grain boundaries, and that these reconstructions are driven by the orientation of the terminating grain surfaces rather than by lattice matching between grains. This discovery shows that adsorbate-induced superstructures are not limited to special grain boundaries but may exist at a variety of general grain boundaries, and hence they can affect the performance of polycrystalline engineering alloys. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412359600060 |
WOS关键词 | SILICON-NITRIDE ; SURFACE ; PHASE ; BI ; COMPLEXIONS ; TRANSITION ; METAL ; INTERFACES ; STABILITY ; ALUMINA |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/197027 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA; 2.Rose Hulman Inst Technol, Dept Mech Engn, Terre Haute, IN 47803 USA; 3.Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA; 4.Univ Calif San Diego, Dept NanoEngn, Program Mat Sci & Engn, La Jolla, CA 92093 USA; 5.Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA; 6.Xiamen Univ Technol, Sch Mat Sci & Engn, Xiamen 361024, Peoples R China |
推荐引用方式 GB/T 7714 | Yu, Zhiyang,Cantwell, Patrick R.,Gao, Qin,et al. Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy[J]. SCIENCE,2017,358(6359):97-+. |
APA | Yu, Zhiyang.,Cantwell, Patrick R..,Gao, Qin.,Yin, Denise.,Zhang, Yuanyao.,...&Harmer, Martin P..(2017).Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy.SCIENCE,358(6359),97-+. |
MLA | Yu, Zhiyang,et al."Segregation-induced ordered superstructures at general grain boundaries in a nickel-bismuth alloy".SCIENCE 358.6359(2017):97-+. |
条目包含的文件 | 条目无相关文件。 |
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