Synthesis and mechanical properties of porous metals with inverted dealloying structure

doi:10.1016/j.scriptamat.2021.114483

IMR OpenIR

	Synthesis and mechanical properties of porous metals with inverted dealloying structure
	Hu, Wen-Kai 1,2; Liu, Ling-Zhi 1; Zou, Lijie 1; Shao, Jun-Chao 1; Wang, Shao-Gang 1; Jin, Hai-Jun 1
通讯作者	Jin, Hai-Jun(hjjin@imr.ac.cn)
	2022-03-15
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	210 页码:7
摘要	Dealloyed porous or nanoporous materials often suffer from impaired strength and stiffness due to the pinch-off or spheroidization of ligaments. Herein a crucibleless liquid metal dealloying (CLMD) procedure was developed to prepare bicontinuous Cu-Cr and Ag-Ni composites consisting of a network-like deal-loying structure (Cr or Ni) and a solidified matrix of liquid-metal corrosion media (Cu or Ag). Chemical dissolution of the backbone phase of dealloying structure leaves behind the porous-structured matrix phases (Cu or Ag), which is in fact the inverse replica of the dealloyed network structure. The relative strength and stiffness of porous Cu and Ag are higher than those with dealloying structure (e.g., porous Fe80Cr20) of similar relative density. Compared with the solid network originally formed in dealloying, the mechanical efficiency of inverted dealloying structure is higher and less sensitive to the above-mentioned topology defects. The ease of CLMD method and the improved mechanical stability of obtained porous materials might enable practical application in many areas. (C)& nbsp;2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Crucibleless liquid metal dealloying Porous metals Inverse replica Mechanical properties Scaling laws
资助者	National Key R&D Program of China ; National Natural Science Foundation of China
DOI	10.1016/j.scriptamat.2021.114483
收录类别	SCI
语种	英语
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 ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000788243700009
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/172525
专题	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
推荐引用方式 GB/T 7714	Hu, Wen-Kai,Liu, Ling-Zhi,Zou, Lijie,et al. Synthesis and mechanical properties of porous metals with inverted dealloying structure[J]. SCRIPTA MATERIALIA,2022,210:7.
APA	Hu, Wen-Kai,Liu, Ling-Zhi,Zou, Lijie,Shao, Jun-Chao,Wang, Shao-Gang,&Jin, Hai-Jun.(2022).Synthesis and mechanical properties of porous metals with inverted dealloying structure.SCRIPTA MATERIALIA,210,7.
MLA	Hu, Wen-Kai,et al."Synthesis and mechanical properties of porous metals with inverted dealloying structure".SCRIPTA MATERIALIA 210(2022):7.