Scalable and shapable nacre-like ceramic-metal composites based on deformable microspheres

doi:10.1093/nsr/nwaf006

IMECH-IR > 非线性力学国家重点实验室

	Scalable and shapable nacre-like ceramic-metal composites based on deformable microspheres
	Lu, YuJie 1; Meng, XiangSen 1; Sun, QiuAn 2; Wang, Jie1 ; Song, JunJie 2; Wang, PengFei 3; Wang, GuoRui 3,4; Yu, ChengXin 1; Zhang, YongSheng 2; Mao, LiBo 1; Yu, ShuHong 1,5
Corresponding Author	Mao, Li-Bo(maolb@ustc.edu.cn) ; Yu, Shu-Hong(shyu@ustc.edu.cn)
Source Publication	NATIONAL SCIENCE REVIEW (IF:13.222[JCR-2018],13.833[5-Year])
	2025-02-19
Volume	12 Issue:3 Pages:9
ISSN	2095-5138
Abstract	Natural nacre that consists of brittle minerals and weak organics exhibits a high fracture toughness while retaining a high strength. The exceptional mechanical performance of nacre is attributed to its hierarchical structure like a 'brick-and-mortar' structure, which has inspired the development of tough ceramic-based composites. However, the practical applications of biomimetic structural ceramics are hindered by limited material size, fabrication efficiency and flexibility of being molded into various shapes. We herein report the fabrication of nacre-like ceramic-metal composites based on deformable alumina microspheres coated with nickel salt. Green bodies are produced by assembling the composite microspheres in molds with different shapes. During the hot-pressing sintering of the green bodies, the microspheres are flattened into platelets under pressure and fill up the entire space without visible voids. The aligned platelets are separated by nickel that is reduced from the nickel salt on their surface, constituting a typical 'brick-and-mortar' structure. By tuning the microsphere sizes, the microstructures of the composites can be optimized to obtain a high flexural strength (386 MPa at room temperature and 286.86 MPa at 600 degrees C) and a high fracture toughness (12.76 MPam1/2 at room temperature and 12.99 MPam1/2 at 600 degrees C) simultaneously. This strategy opens a promising avenue for the feasible mass production and all-in-one molding of nacre-like ceramic-metal composites with various shapes, sizes and raw materials. Based on the compression of deformable ceramic microspheres into platelets, nacre-like ceramic-metal composites integrating high strength, high toughness and shape adaptability are produced via an all-in-one molding process.
Keyword	ceramic-metal composites biomimetic materials nacre-like structures scalable and shapable properties tough and strong
DOI	10.1093/nsr/nwaf006
Indexed By	SCI ; EI ; CSCD
Language	英语
WOS ID	WOS:001424950000001
WOS Keyword	FRACTURE ; TOUGHNESS ; STRENGTH ; DESIGN ; SIZE
WOS Research Area	Science & Technology - Other Topics
WOS Subject	Multidisciplinary Sciences
Funding Project	Chinese Academy of Sciences ; University of Science and Technology of China ; New Cornerstone Science Foundation
Funding Organization	Chinese Academy of Sciences ; University of Science and Technology of China ; New Cornerstone Science Foundation
Classification	一类
Ranking	3+
Contributor	Mao, LiBo ; Yu, ShuHong
Citation statistics	正在获取...
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/100132
Collection	非线性力学国家重点实验室
Affiliation	1.Univ Sci & Technol China, Inst Biomimet Mat & Chem, Hefei Natl Res Ctr Phys Sci Microscale, Dept Chem,Div Nanomat & Chem,New Cornerstone Sci L, Hefei 230026, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China; 3.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Peoples R China; 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 5.Southern Univ Sci & Technol, Inst Innovat Mat, Dept Mat Sci & Engn, Dept Chem, Shenzhen 518055, Peoples R China
Recommended Citation GB/T 7714	Lu, YuJie,Meng, XiangSen,Sun, QiuAn,et al. Scalable and shapable nacre-like ceramic-metal composites based on deformable microspheres[J]. NATIONAL SCIENCE REVIEW,2025,12,3,:9.Rp_Au:Mao, LiBo, Yu, ShuHong
APA	Lu, YuJie.,Meng, XiangSen.,Sun, QiuAn.,Wang, Jie.,Song, JunJie.,...&Yu, ShuHong.(2025).Scalable and shapable nacre-like ceramic-metal composites based on deformable microspheres.NATIONAL SCIENCE REVIEW,12(3),9.
MLA	Lu, YuJie,et al."Scalable and shapable nacre-like ceramic-metal composites based on deformable microspheres".NATIONAL SCIENCE REVIEW 12.3(2025):9.

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