Light, strong, and stable nanoporous aluminum with native oxide shell

doi:10.1126/sciadv.abb9471

CORC > 金属研究所 > 中国科学院金属研究所

	Light, strong, and stable nanoporous aluminum with native oxide shell
	Yang, Wei 1,2; Luo, Zhao-Ping 1; Bao, Wei-Kang 3; Xie, Hui 1; You, Ze-Sheng 3; Jin, Hai-Jun 1
刊名	SCIENCE ADVANCES
	2021-07-01
卷号	7 期号:28 页码:10
ISSN号	2375-2548
DOI	10.1126/sciadv.abb9471
通讯作者	Jin, Hai-Jun(hjjin@imr.ac.cn)
英文摘要	Aluminum (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.
资助项目	National Key R&D Program of China[2017YFA0204401] ; National Natural Science Foundation of China[51971218]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000672817500001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160051]
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.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Peoples R China
推荐引用方式 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.