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Control of the microstructure and mechanical properties of electrodeposited graphene/Ni composite
Liu YS; Liu Y; Zhang Q; Zhang CL; Wang J; Wu YX; Han PD; Gao ZP; Wang LP; Wu XL(武晓雷)
2018-06-06
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷号727页码:133-139
ISSN0921-5093
摘要Nickel composites reinforced with reduced graphene oxide (rGO) nanosheets were fabricated by a direct current electrodeposition technique. The low volume fraction of graphene can promote the cathodic polarized potential, facilitate the transport of ions and electrons on electrodes, and provide a large number of nucleation sites, consequently accelerate the formation of heterogeneous microstructure features. The graphene/Ni composite with 2 mL graphene dispersions demonstrates a tensile strength of 864 MPa and a plastic elongation of 20.6%, which are 25% and 36% higher than that of the pure bulk Ni. The enhancements in strength and ductility of the composite can be ascribed to the bimodal microstructure, for which the fine grain population provides for enhanced strength, whereas the coarse grain population enhances ductility by enabling strain hardening. On the contrary, the positive role of rGO in microstructure control will be weakened due to the agglomeration of rGO sheets in a high-volume plating bath. The low adsorption quantity of rGO is unfavourable for the nucleation of Ni matrix, accordingly produces a uniform fine-grained microstructure. The tensile strength of the composite with 5 mL rGO is 750 MPa, whereas the fracture elongation is only 7.5%. It is believed that a proper addition of rGO dispersion makes a promising microstructure for advanced graphene/Ni composite.
关键词Graphene/Ni composites Electrochemical nucleation Heterogeneous microstructure Strength and ductility
DOI10.1016/j.msea.2018.04.092
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000438000500015
关键词[WOS]ENHANCED TENSILE DUCTILITY ; MATRIX COMPOSITES ; NANOCRYSTALLINE NI ; NANOSTRUCTURED NICKEL ; GRAIN-SIZE ; STRENGTH ; NANOCOMPOSITES ; NANOSHEETS ; COATINGS ; COPPER
WOS研究方向Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS类目Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China [51505318, 51371123] ; Natural Science Foundation of Shanxi Province [201601D202033, 201601D202034] ; Innovation Project of Shanxi Graduate Education [2016JD20]
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力学所作者排名5+
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77825
专题非线性力学国家重点实验室
作者单位1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
2.Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Shanxi, Peoples R China
3.Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Coll Mech, Taiyuan 030024, Shanxi, Peoples R China
4.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
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Liu YS,Liu Y,Zhang Q,et al. Control of the microstructure and mechanical properties of electrodeposited graphene/Ni composite[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,727:133-139.
APA Liu YS.,Liu Y.,Zhang Q.,Zhang CL.,Wang J.,...&武晓雷.(2018).Control of the microstructure and mechanical properties of electrodeposited graphene/Ni composite.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,727,133-139.
MLA Liu YS,et al."Control of the microstructure and mechanical properties of electrodeposited graphene/Ni composite".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 727(2018):133-139.
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