Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu

doi:10.11900/0412.1961.2017.00208

IMR OpenIR

	Effect of Electrolyte Temperature on Microstructures of Direct-Current Electrodeposited Nanotwinned Cu
	Cheng Zhao 1,2; Jin Shuai 1; Lu Lei 1
通讯作者	Lu Lei(llu@imr.ac.cn)
	2018-03-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	54 期号:3 页码:428-434
摘要	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.
关键词	direct-current electrodeposition nanotwinned Cu electrolyte temperature cathode overpotential microstructure
资助者	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
DOI	10.11900/0412.1961.2017.00208
收录类别	SCI
语种	英语
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 Natural Science Foundation of China[51401211] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000427121400009
出版者	SCIENCE PRESS
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/127500
专题	中国科学院金属研究所
通讯作者	Lu Lei
作者单位	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
推荐引用方式 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.