Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries
文献类型：期刊论文
| 作者 | Song, Miao2; Zhou, Gang3; Lu, Ning1; Lee, Jaewon2,4; Nakouzi, Elias2; Wang, Hao3; Li, Dongsheng2 |
| 刊名 | SCIENCE
 |
| 出版日期 | 2020-01-03 |
| 卷号 | 367期号:6473页码:40-+ |
| ISSN号 | 0036-8075 |
| DOI | 10.1126/science.aax6511 |
| 通讯作者 | Li, Dongsheng(dongsheng.li2@pnnl.gov) |
| 英文摘要 | Natural and synthetic nanoparticles composed of fivefold twinned crystal domains have distinct properties. The formation mechanism of these fivefold twinned nanoparticles is poorly understood. We used in situ high-resolution transmission electron microscopy combined with molecular dynamics simulations to demonstrate that fivefold twinning occurs through repeated oriented attachment of similar to 3-nanometer gold, platinum, and palladium nanoparticles. We discovered two different mechanisms for forming fivefold twinned nanoparticles that are driven by the accumulation and elimination of strain. This was accompanied by decomposition of grain boundaries and the formation of a special class of twins with a net strain of zero. These observations allowed us to develop a quantitative picture of the twinning process. The mechanisms provide guidance for controlling twin structures and morphologies across a wide range of materials. |
| 资助项目 | U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences[KC0203020:67037] ; DOE[DE-AC05-76RLO1830] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000506686400030 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 资助机构 | U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences ; DOE |
| 源URL | [http://ir.imr.ac.cn/handle/321006/136609]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Dongsheng |
| 作者单位 | 1.Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA 2.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99352 USA 3.Chinese Acad Sci, Inst Met Res, Div Titanium Alloys, Shenyang 110016, Peoples R China 4.Univ Missouri, Dept Biomed Biol & Chem Engn, Columbia, MO 65211 USA |
| 推荐引用方式 GB/T 7714 | Song, Miao,Zhou, Gang,Lu, Ning,et al. Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries[J]. SCIENCE,2020,367(6473):40-+. |
| APA | Song, Miao.,Zhou, Gang.,Lu, Ning.,Lee, Jaewon.,Nakouzi, Elias.,...&Li, Dongsheng.(2020).Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries.SCIENCE,367(6473),40-+. |
| MLA | Song, Miao,et al."Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries".SCIENCE 367.6473(2020):40-+. |
入库方式： OAI收割
来源：金属研究所
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