Hard nanocrystalline gold materials prepared via high-pressure phase transformation
文献类型：期刊论文
| 作者 | Xie, Chenlong9; Niu, Wenxin7,8; Li, Penghui9; Ge, Yiyao6; Liu, Jiawei8; Fan, Zhanxi4,5,6; Liu, Xiaoxiao9; Chen, Ye3; Zhou, Ming8; Li, Zihe9 |
| 刊名 | NANO RESEARCH
 |
| 出版日期 | 2022-05-02 |
| 页码 | 8 |
| ISSN号 | 1998-0124 |
| 关键词 | nanocrystalline Au high hardness high strength high-pressure forging 4H Au nanoribbons |
| DOI | 10.1007/s12274-022-4226-5 |
| 通讯作者 | Zhang, Hua(hua.zhang@cityu.edu.hk) ; Zhao, Zhisheng(zzhao@ysu.edu.cn) ; Tian, Yongjun(fhcl@ysu.edu.cn) |
| 英文摘要 | As one of the important materials, nanocrystalline Au (n-Au) has gained numerous interests in recent decades owing to its unique properties and promising applications. However, most of the current n-Au thin films are supported on substrates, limiting the study on their mechanical properties and applications. Therefore, it is urgently desired to develop a new strategy to prepare nAu materials with superior mechanical strength and hardness. Here, a hard n-Au material with an average grain size of - 40 nm is prepared by cold-forging of the unique Au nanoribbons (NRBs) with unconventional 4H phase under high pressure. Systematic characterizations reveal the phase transformation from 4H to face-centered cubic (fcc) phase during the cold compression. Impressively, the compressive yield strength and Vickers hardness (H-v) of the prepared n-Au material reach similar to 140.2 MPa and similar to 1.0 GPa, which are 4.2 and 2.2 times of the microcrystalline Au foil, respectively. This work demonstrates that the combination of high-pressure cold-forging and the in-situ 4H-to-fcc phase transformation can effectively inhibit the grain growth in the obtained n-Au materials, leading to the formation of novel hard n-Au materials. Our strategy opens up a new avenue for the preparation of nanocrystalline metals with superior mechanical property. |
| WOS关键词 | MECHANICAL-BEHAVIOR ; FACILE SYNTHESIS ; SIZE ; NANOMATERIALS ; CRYSTAL ; METALS ; ALLOY ; MICROSTRUCTURE ; METALLURGY ; KINETICS |
| 资助项目 | National Natural Science Foundation of China[52090020] ; National Natural Science Foundation of China[51722209] ; National Natural Science Foundation of China[51525205] ; National Key Research and Development Program of China[2018YFA0305900] ; NSF for Distinguished Young Scholars of Hebei Province of China[E2018203349] ; China Postdoctoral Science Foundation[2021M691051] ; ITC via Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) ; City University of Hong Kong[9380100] ; City University of Hong Kong[9610480] ; City University of Hong Kong[7200651] ; City University of Hong Kong[9610478] ; City University of Hong Kong[1886921] ; City University of Hong Kong[7020013] ; City University of Hong Kong[7005512] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000789813600004 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; NSF for Distinguished Young Scholars of Hebei Province of China ; China Postdoctoral Science Foundation ; ITC via Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) ; City University of Hong Kong |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89096]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Zhang, Hua; Zhao, Zhisheng; Tian, Yongjun |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Chem, Beijing 100190, Peoples R China 3.Chinese Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China 4.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China 5.City Univ Hong Kong, Hong Kong Branch, Natl Precious Met Mat Engn Res Ctr NPMM, Hong Kong, Peoples R China 6.City Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China 7.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China 8.Nanyang Technol Univ, Ctr Programmable Mat, Sch Mat Sci & Engn, Singapore 639798, Singapore 9.Yanshan Univ, Ctr High Pressure Sci CHiPS, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Chenlong,Niu, Wenxin,Li, Penghui,et al. Hard nanocrystalline gold materials prepared via high-pressure phase transformation[J]. NANO RESEARCH,2022:8. |
| APA | Xie, Chenlong.,Niu, Wenxin.,Li, Penghui.,Ge, Yiyao.,Liu, Jiawei.,...&Zhang H.(2022).Hard nanocrystalline gold materials prepared via high-pressure phase transformation.NANO RESEARCH,8. |
| MLA | Xie, Chenlong,et al."Hard nanocrystalline gold materials prepared via high-pressure phase transformation".NANO RESEARCH (2022):8. |
入库方式： OAI收割
来源：力学研究所
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