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Effect of Mo nanoparticles on microstructure and mechanical properties of Cu alloys by self-propagating and spark plasma sintering

文献类型：期刊论文

作者Sun, J. Y.1,2; Zhang, L. C.2; Liu, R.2; Xie, Z. M.2; Yang, J. F.2; Xie, X. F.2; Wang, X. P.2; Fang, Q. F.2; Liu, C. S.2; Wu, Xuebang1,2
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2024-11-01
卷号916
关键词Powder metallurgy Dispersion-strengthened metals Mechanical properties Cu alloys
ISSN号0921-5093
DOI10.1016/j.msea.2024.147305
通讯作者Liu, R.(liurui@issp.ac.cn) ; Wu, Xuebang(xbwu@issp.ac.cn)
英文摘要Cu alloys strengthened with Mo nanoparticle, with Mo contents of 2 at.%, 4 at.%, 6 at.%, 8 at.%, and 10 at.%, were fabricated by self-propagating high-temperature synthesis, followed by two-step hydrogen reduction and spark plasma sintering. The microstructures, mechanical properties, and thermal conductivity of these Cu-Mo alloys were investigated. The results reveal that two-step hydrogen reduction effectively reduces the average Mo particle size to 13.8 nm compared to one-step reduction. With increasing Mo content, the average grain size of Cu initially decreases but then increases due to the segregation of Mo particles. Notably, the Cu-6 at.% Mo alloy exhibits the smallest average grain size of 0.46 mu m, with dispersed nanoscale Mo particles of 25.6 nm. The Cu-6 at.% Mo alloy demonstrates superior mechanical properties, with a tensile strength of 405.0 MPa and an elongation of 24.9 %. Furthermore, the Cu-6 at.% Mo alloy has a high thermal conductivity of 320.0 Wm(-1)K(-1) even at 400 degrees C and a high electrical conductivity of 82.3 % IACS at room temperature. This work offers valuable insights for the design of advanced Cu composites suitable for heat sink applications.
WOS关键词STRUCTURAL-MATERIALS ; COMPOSITES ; STRENGTH ; FISSION ; ZR
资助项目National Key Research and Development Program of China[2022YFE03140002] ; National Key Research and Development Program of China[2019YFE03110200] ; National Natural Science Foundation of China[52325103] ; National Natural Science Foundation of China[52273320] ; National Natural Science Foundation of China[52171084] ; National Natural Science Foundation of China[12064044] ; Anhui Provincial Natural Science Foundation[2308085J07] ; HFIPS Director's Funds[YZJJQY202306] ; HFIPS Director's Funds[YZJJ-GGZX-2022-01]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001328388800001
出版者ELSEVIER SCIENCE SA
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; HFIPS Director's Funds
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135782]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, R.; Wu, Xuebang
作者单位1.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Sun, J. Y.,Zhang, L. C.,Liu, R.,et al. Effect of Mo nanoparticles on microstructure and mechanical properties of Cu alloys by self-propagating and spark plasma sintering[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,916.
APA Sun, J. Y..,Zhang, L. C..,Liu, R..,Xie, Z. M..,Yang, J. F..,...&Wu, Xuebang.(2024).Effect of Mo nanoparticles on microstructure and mechanical properties of Cu alloys by self-propagating and spark plasma sintering.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,916.
MLA Sun, J. Y.,et al."Effect of Mo nanoparticles on microstructure and mechanical properties of Cu alloys by self-propagating and spark plasma sintering".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 916(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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