EFFECT OF ELECTROLYTE ADDITIVE CONCENTRATION ON MICROSTRUCTURE OF DIRECT CURRENT ELECTRODEPOSITED NANOTWINNED Cu
文献类型：期刊论文
| 作者 | Jin Shuai; Cheng Zhao; Pan Qingsong; Lu Lei |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2016-08-11 |
| 卷号 | 52期号:8页码:973-979 |
| 关键词 | nanotwinned Cu direct-current electrodeposition twin spacing electrolyte additive |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2015.00536 |
| 通讯作者 | Lu Lei(llu@imr.ac.cn) |
| 英文摘要 | Nanotwinned metals have attracted widespread attentions recently, due to their unique overall properties, such as high strength, considerable ductility, enhanced work hardening and high electrical conductivity. The method of synthesized nanotwinned metals is an essential factor for influencing its application. To date, the direct-current electrodeposition technique is successfully used to fabricate bulk nanotwinned Cu samples. However, many parameters, such as the density of current, additive, the concentration of Cu2+, pH and temperature, influence the formation of nanoscale twins during electrodeposited process. To understand the effect of electrolyte additive on the formation of twins, in this work, gelatin with different concentrations was added into the electrolyte while other parameters are kept invariant. Bulk Cu with preferentially oriented nanoscale twins was synthesized in CuSO4 electrolyte with different concentrations of gelatin. The nanotwinned Cu sample is composed of columnar grains with high density nanoscale coherent twin boundaries, most of them are parallel to the growth surface. It is found that the concentration of the electrolyte addition plays an important role in the twin lamellar spacing of the nanotwinned Cu samples, but has little effect on grain size. No twins or twins with micro-sized spacing are detected in electrodeposited Cu without the electrolyte addition. With the concentration of gelatin increasing from 0.5 mg/L to 5 mg/L, the average twin lamellar thickness of the bulk nanotwinned Cu samples decreased from 150 nm to 30 nm. Twin boundaries also grow longer in grains with the increase of gelatin. This is because that with the increase of the concentration of gelatin, the overpotential of cathode increases and nucleation of twins becomes easier, resulting in the reduction of twin spacing. |
| 资助项目 | National Natural Science Foundation of China[51420105001] ; National Natural Science Foundation of China[51371171] ; National Natural Science Foundation of China[51471172] ; National Basic Research Program of China[2012CB932202] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000381541900010 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; National Basic Research Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/122765]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu Lei |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin Shuai,Cheng Zhao,Pan Qingsong,et al. EFFECT OF ELECTROLYTE ADDITIVE CONCENTRATION ON MICROSTRUCTURE OF DIRECT CURRENT ELECTRODEPOSITED NANOTWINNED Cu[J]. ACTA METALLURGICA SINICA,2016,52(8):973-979. |
| APA | Jin Shuai,Cheng Zhao,Pan Qingsong,&Lu Lei.(2016).EFFECT OF ELECTROLYTE ADDITIVE CONCENTRATION ON MICROSTRUCTURE OF DIRECT CURRENT ELECTRODEPOSITED NANOTWINNED Cu.ACTA METALLURGICA SINICA,52(8),973-979. |
| MLA | Jin Shuai,et al."EFFECT OF ELECTROLYTE ADDITIVE CONCENTRATION ON MICROSTRUCTURE OF DIRECT CURRENT ELECTRODEPOSITED NANOTWINNED Cu".ACTA METALLURGICA SINICA 52.8(2016):973-979. |
入库方式： OAI收割
来源：金属研究所
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