| Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu | |
| Cheng Zhao1,2; Jin Shuai1; Lu Lei1 | |
| Corresponding Author | Lu Lei(llu@imr.ac.cn) |
| 2018-03-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 54Issue:3Pages:428-434 |
| Abstract | Nanotwinned (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. |
| Keyword | direct-current electrodeposition nanotwinned Cu electrolyte temperature cathode overpotential microstructure |
| Funding Organization | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences |
| DOI | 10.11900/0412.1961.2017.00208 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National 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 Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000427121400009 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/127500 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lu Lei |
| Affiliation | 1.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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