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Light, strong, and stable nanoporous aluminum with native oxide shell
Yang, Wei1,2; Luo, Zhao-Ping1; Bao, Wei-Kang3; Xie, Hui1; You, Ze-Sheng3; Jin, Hai-Jun1
Corresponding AuthorJin, Hai-Jun(hjjin@imr.ac.cn)
2021-07-01
Source PublicationSCIENCE ADVANCES
ISSN2375-2548
Volume7Issue:28Pages:10
AbstractAluminum (Al) metal is highly reactive but has excellent corrosion resistance because of the formation of a self-healing passive oxide layer on the surface. Here, we report that this native aluminum oxide shell can also stabilize and strengthen porous Al when the ligament (strut) size is decreased to the submicron or nanometer scale. The nanoporous Al with native oxide shell, which is a nanoporous Al-Al2O3 core-shell composite self-organized in a galvanic replacement reaction, is nonflammable under ambient conditions and stable against coarsening near melting temperatures. This material is stronger than conventional foams of similar density consisting of pure Al or Al-based composites, and also lighter and stronger than most nanoporous metals reported previously. Its light weight, high strength, and excellent stability warrant the explorations of functional and structural applications of this material, if more efficient and scalable synthesis processes are developed in the future.
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1126/sciadv.abb9471
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0204401] ; National Natural Science Foundation of China[51971218]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000672817500001
PublisherAMER ASSOC ADVANCEMENT SCIENCE
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160052
Collection中国科学院金属研究所
Corresponding AuthorJin, Hai-Jun
Affiliation1.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.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Peoples R China
Recommended Citation
GB/T 7714
Yang, Wei,Luo, Zhao-Ping,Bao, Wei-Kang,et al. Light, strong, and stable nanoporous aluminum with native oxide shell[J]. SCIENCE ADVANCES,2021,7(28):10.
APA Yang, Wei,Luo, Zhao-Ping,Bao, Wei-Kang,Xie, Hui,You, Ze-Sheng,&Jin, Hai-Jun.(2021).Light, strong, and stable nanoporous aluminum with native oxide shell.SCIENCE ADVANCES,7(28),10.
MLA Yang, Wei,et al."Light, strong, and stable nanoporous aluminum with native oxide shell".SCIENCE ADVANCES 7.28(2021):10.
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