| High-strength hierarchical-structured bulk nanoporous Cu prepared by dealloying and spark plasma sintering | |
| Wang, Li1,2; Xie, Hui1; Shao, Jun-Chao1; Yang, Hang3; Feng, Pei-Zhong3; Jin, Hai-Jun1 | |
| Corresponding Author | Jin, Hai-Jun(hjjin@imr.ac.cn) |
| 2021-10-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 203Pages:5 |
| Abstract | The applications of dealloyed nanoporous metals are usually hindered by their slow rate of synthesis, the limited sample dimensions, and the poor mechanical stability due to the presence of native cracks. We report that these obstacles can be overcome by combining dealloying with spark plasma sintering. Centimeter-sized nanoporous Cu samples were prepared by spark plasma sintering of dealloyed nanoporous Cu particles. The obtained bulk nanoporous Cu samples are free of major cracks, and exhibit hierarchical porous structures with structure size of-250 nm at lower level of hierarchy and relative density varying between 0.29-0.57. Because of the "size effect" on ligament strength and the elimination of native cracks, these nanoporous Cu samples are stronger than monolithic nanoporous Cu (with cracks) and microporous Cu of similar density. We anticipate that this approach will improve the performance and broaden the application of nanoporous metals, of which the synthesis rate, sample dimensions and microstructure are no longer dependent entirely on dealloying procedure. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Porous materials Nanoporous copper Dealloying Spark plasma sintering Mechanical properties |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China |
| DOI | 10.1016/j.scriptamat.2021.114114 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2017YFA0204401] ; National Natural Science Foundation of China[51971218] ; National Natural Science Foundation of China[52020105011] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000687338200008 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166870 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Jin, Hai-Jun |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Jiangsu, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Li,Xie, Hui,Shao, Jun-Chao,et al. High-strength hierarchical-structured bulk nanoporous Cu prepared by dealloying and spark plasma sintering[J]. SCRIPTA MATERIALIA,2021,203:5. |
| APA | Wang, Li,Xie, Hui,Shao, Jun-Chao,Yang, Hang,Feng, Pei-Zhong,&Jin, Hai-Jun.(2021).High-strength hierarchical-structured bulk nanoporous Cu prepared by dealloying and spark plasma sintering.SCRIPTA MATERIALIA,203,5. |
| MLA | Wang, Li,et al."High-strength hierarchical-structured bulk nanoporous Cu prepared by dealloying and spark plasma sintering".SCRIPTA MATERIALIA 203(2021):5. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment