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A biomimetic aluminum composite exhibiting gradient-distributed thermal expansion, high thermal conductivity, and highly directional toughness

文献类型：期刊论文

作者Dong, B. Ke1,3; Wei, C. Long4; Lin, J. Chao3; Xie, L. Lu1,3; Liu, K. Ke1,3; Xiong, T. Jiao1,3; Song, W. Hai3; Tong, Peng1,3; Sun, Y. Ping2,3
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2025-04-01
卷号213
关键词Biomimetic materials Gradient materials Low thermal expansion High thermal conductivity Toughness
ISSN号1005-0302
DOI10.1016/j.jmst.2024.06.025
通讯作者Lin, J. Chao(jclin@issp.ac.cn) ; Tong, Peng(tongpeng@issp.ac.cn)
英文摘要Because of the large coefficient of thermal expansion (CTE) (23 ppm K-1 ), aluminum faces challenges in meeting the demands of high dimensional stability in precision instruments, microelectronics, and aerospace. Filling negative thermal expansion (NTE) particles into aluminum can create composites with either zero or low CTEs. However, the resulting composites usually have poor thermal conductivity due to their monolithic configuration, i.e., the NTE particles are filled randomly. Thus, heat sinks should be equipped to assist their usage (e.g., in thermal management). This in turn causes strong thermal stress in the packaging system owing to the high contrast in the CTEs between those monolithic composites and heat sinks typically made of copper or aluminum. Here, we propose a gradient configuration for lowCTE aluminum composite, inspired by the bamboo structure. The gradient distribution of NTE particles (Zn0.5 Sn0.3 Mn0.2 NMn3 , ZSM) was obtained by laying up several layers of ZSM/Al with the ZSM fraction ranging from 0 to 28 vol.%. In the gradient composite, the CTE near room temperature varies from 3.4 pm K-1 on one side to 21 ppm K-1 on the other side. Such a gradient CTE distribution would facilitate the low-thermal-stress designs and thus help stabilize the dimension of a precision system. Furthermore, this composite has a high thermal conductivity of 130 W m-1 K-1 and strong toughness when the flexural loading is applied on the 28 vol.% ZSM/Al side. Our research provides a novel approach to designing metallic matrix composites with unprecedented performance. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
WOS关键词BETA-EUCRYPTITE ; COPPER ; MICROSTRUCTURE ; CRYSTAL ; DESIGN ; LA(FE ; SI
资助项目National Natural Founda-tion of China[52171146] ; HFIPS Director's Fund[BJPY2023A08] ; Natural Science Foundation of Anhui Province[2108085ME145]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001300087200001
出版者JOURNAL MATER SCI TECHNOL
资助机构National Natural Founda-tion of China ; HFIPS Director's Fund ; Natural Science Foundation of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/134908]  
专题中国科学院合肥物质科学研究院
通讯作者Lin, J. Chao; Tong, Peng
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme C, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China
4.Anqing Normal Univ, Sch Elect Engn & Intelligent Mfg, Anqing 246133, Peoples R China
推荐引用方式
GB/T 7714		 Dong, B. Ke,Wei, C. Long,Lin, J. Chao,et al. A biomimetic aluminum composite exhibiting gradient-distributed thermal expansion, high thermal conductivity, and highly directional toughness[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,213.
APA Dong, B. Ke.,Wei, C. Long.,Lin, J. Chao.,Xie, L. Lu.,Liu, K. Ke.,...&Sun, Y. Ping.(2025).A biomimetic aluminum composite exhibiting gradient-distributed thermal expansion, high thermal conductivity, and highly directional toughness.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,213.
MLA Dong, B. Ke,et al."A biomimetic aluminum composite exhibiting gradient-distributed thermal expansion, high thermal conductivity, and highly directional toughness".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 213(2025).

入库方式： OAI收割

来源：合肥物质科学研究院

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