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Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu
Cheng Zhao1,2; Jin Shuai1; Lu Lei1
Corresponding AuthorLu Lei(llu@imr.ac.cn)
2018-03-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume54Issue:3Pages:428-434
AbstractNanotwinned (NT) metals are promising structural materials due to their excellent combination of strength and ductility. These superior properties are strongly dependent on the microstructures i.e. the twin length (grain size), the twin thickness and the twin orientation. Understanding the synthesis process and growth mechanism of NT metals is essential for their structure design. In this work, the effect of electrolyte temperature on the microstructures of highly oriented NT Cu samples, including twin thickness and twin length (grain size), are systematically studied. The NT Cu samples were prepared by means of the direct-current electrodeposition at 293, 298, 303, 308 and 313 K, respectively, while other deposition parameters such as current density, concentration of additive and pH value were kept constant. With decreasing the temperature from 313 K to 293 K, the average grain size decreases from 27.6 mu m to 2.8 mu m and the average twin thickness decreases from 111 nm to 28 nm, which results in an increment of hardness from 0.7 GPa to 1.5 GPa. This is because with decreasing the temperature, the overpotential of cathode for depositing metal elevates, leading to the nucleation rate of both the grain and twin enhanced.
Keyworddirect-current electrodeposition nanotwinned Cu electrolyte temperature cathode overpotential microstructure
Funding OrganizationNational Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
DOI10.11900/0412.1961.2017.00208
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51420105001] ; National Natural Science Foundation of China[51371171] ; National Natural Science Foundation of China[51471172] ; National Natural Science Foundation of China[51401211] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000427121400009
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/127503
Collection中国科学院金属研究所
Corresponding AuthorLu Lei
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Cheng Zhao,Jin Shuai,Lu Lei. Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu[J]. ACTA METALLURGICA SINICA,2018,54(3):428-434.
APA Cheng Zhao,Jin Shuai,&Lu Lei.(2018).Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu.ACTA METALLURGICA SINICA,54(3),428-434.
MLA Cheng Zhao,et al."Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu".ACTA METALLURGICA SINICA 54.3(2018):428-434.
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