Improvement of mechanical properties in carbon nanotube/Al-Cu-Mg composites through introducing bioinspired tree-ring structure

doi:10.1016/j.coco.2022.101462

IMR OpenIR

	Improvement of mechanical properties in carbon nanotube/Al-Cu-Mg composites through introducing bioinspired tree-ring structure
	Li, P. Y.1,2; Li, X. N.2; Ma, K.2; Liu, F. C.2; Liu, Z. Y.2; Chen, L. Q.1; Xiao, B. L.2; Ma, Z. Y.2
通讯作者	Liu, Z. Y.(zyliu@imr.ac.cn) ; Chen, L. Q.(lqchen@mail.neu.edu.cn)
	2023
发表期刊	COMPOSITES COMMUNICATIONS
ISSN	2452-2139
卷号	37 页码:5
摘要	Carbon nanotube (CNT) reinforced Al (CNT/Al) composites had much higher strength and modulus than the Al matrix, but the relatively low elongation restricted their application. To improve the strength-ductility of CNT/Al composites, a bioinspired tree-ring structure consisting of alternated ductile layers free of CNTs and brittle layers rich in CNTs was designed and fabricated by powder metallurgy route. The results indicate that the tree-ring composite showed higher strength and elongation, compared with those of the uniform composite. The extra strength enhancement of the tree-ring composite was the back-stress strengthening caused by the deformation mismatch between the ductile layers and brittle layers, as well as the coordinated deformation between the ductile core and the strong shell. The increase in elongation was the crack blunting and deflection caused by the ductile layers. The results provide a possible method to improve the strength-ductility of composites.
关键词	Bioinspired structure Carbon nanotube Metal matrix composite Mechanical property
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Liao Ning Revitalization Talents Program ; Liaoning Excellent Youth ; Shenyang young and middle-aged scientific and technological innovation talents support plan ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.coco.2022.101462
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2021YFA1600704] ; National Natural Science Foundation of China[52120105001] ; National Natural Science Foundation of China[52192594] ; National Natural Science Foundation of China[52192595] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[51871215] ; National Natural Science Foundation of China[51871214] ; Liao Ning Revitalization Talents Program[XLYC1902058] ; Liaoning Excellent Youth[2022-YQ-01] ; Shenyang young and middle-aged scientific and technological innovation talents support plan[RC210490] ; Youth Innovation Promotion Association CAS[2020197]
WOS研究方向	Materials Science
WOS类目	Materials Science, Composites
WOS记录号	WOS:000911669100001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：5[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/321006/175370
专题	中国科学院金属研究所
通讯作者	Liu, Z. Y.; Chen, L. Q.
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automation, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, P. Y.,Li, X. N.,Ma, K.,et al. Improvement of mechanical properties in carbon nanotube/Al-Cu-Mg composites through introducing bioinspired tree-ring structure[J]. COMPOSITES COMMUNICATIONS,2023,37:5.
APA	Li, P. Y..,Li, X. N..,Ma, K..,Liu, F. C..,Liu, Z. Y..,...&Ma, Z. Y..(2023).Improvement of mechanical properties in carbon nanotube/Al-Cu-Mg composites through introducing bioinspired tree-ring structure.COMPOSITES COMMUNICATIONS,37,5.
MLA	Li, P. Y.,et al."Improvement of mechanical properties in carbon nanotube/Al-Cu-Mg composites through introducing bioinspired tree-ring structure".COMPOSITES COMMUNICATIONS 37(2023):5.