| Hard nanocrystalline gold materials prepared via high-pressure phase transformation | |
Xie CL1; Niu WX2,3; Li PH1; Ge YY4; Liu JW2; Fan ZX4,5,6; Liu XX1; Chen Y7; Zhou M2; Li ZH1 ; Ma MD1; Yue YH8; Wang J(王晶)9; Zhu L1; Luo K1; Zhang Y1; Wu YJ1; Wang L1; Xu B1; Zhang H4,5,6; Zhao ZS1; Tian YJ1
| |
| Corresponding Author | Zhang, Hua(hua.zhang@cityu.edu.hk) ; Zhao, Zhisheng(zzhao@ysu.edu.cn) ; Tian, Yongjun(fhcl@ysu.edu.cn) |
| Source Publication | NANO RESEARCH
 |
| 2022-05-02 | |
| Pages | 8 |
| ISSN | 1998-0124 |
| Abstract | 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. |
| Keyword | nanocrystalline Au high hardness high strength high-pressure forging 4H Au nanoribbons |
| DOI | 10.1007/s12274-022-4226-5 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000789813600004 |
| WOS Keyword | MECHANICAL-BEHAVIOR ; FACILE SYNTHESIS ; SIZE ; NANOMATERIALS ; CRYSTAL ; METALS ; ALLOY ; MICROSTRUCTURE ; METALLURGY ; KINETICS |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Project | 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] |
| Funding Organization | 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 |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Zhang, Hua ; Zhao, Zhisheng ; Tian, Yongjun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89097 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Yanshan Univ, Ctr High Pressure Sci CHiPS, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China; 2.Nanyang Technol Univ, Ctr Programmable Mat, Sch Mat Sci & Engn, Singapore 639798, Singapore; 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China; 4.City Univ Hong Kong, Dept Chem, Hong Kong, 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, Shenzhen Res Inst, Shenzhen 518057, Peoples R China; 7.Chinese Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China; 8.Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Chem, Beijing 100190, Peoples R China; 9.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Xie CL,Niu WX,Li PH,et al. Hard nanocrystalline gold materials prepared via high-pressure phase transformation[J]. NANO RESEARCH,2022:8. |
| APA | Xie CL.,Niu WX.,Li PH.,Ge YY.,Liu JW.,...&Tian YJ.(2022).Hard nanocrystalline gold materials prepared via high-pressure phase transformation.NANO RESEARCH,8. |
| MLA | Xie CL,et al."Hard nanocrystalline gold materials prepared via high-pressure phase transformation".NANO RESEARCH (2022):8. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2022FA382_2022_Har（2201KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment