High-strength hierarchical-structured bulk nanoporous Cu prepared by dealloying and spark plasma sintering
文献类型：期刊论文
| 作者 | Wang, Li1,2; Xie, Hui1; Shao, Jun-Chao1; Yang, Hang3; Feng, Pei-Zhong3; Jin, Hai-Jun1 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 203页码:5 |
| 关键词 | Porous materials Nanoporous copper Dealloying Spark plasma sintering Mechanical properties |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2021.114114 |
| 通讯作者 | Jin, Hai-Jun(hjjin@imr.ac.cn) |
| 英文摘要 | 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. |
| 资助项目 | National Key R&D Program of China[2017YFA0204401] ; National Natural Science Foundation of China[51971218] ; National Natural Science Foundation of China[52020105011] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000687338200008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/166869]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jin, Hai-Jun |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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