Mechanical behaviors of graphene/copper matrix composite foils fabricated by pulse electrodeposition

被引:23
作者
Wei, Kun Xia [1 ,2 ]
Zhou, Hao Ran [1 ,2 ]
Jia, Fei Long [1 ,2 ]
Zhang, Ke [3 ]
Wei, Wei [1 ,2 ]
Chu, Fu Qiang [1 ,2 ]
Wang, Dan Dan [1 ,2 ]
Alexandrov, Igor V. [2 ,4 ]
机构
[1] Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
[2] Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Sino Russian Joint Lab Funct Nanostruct Mat, Changzhou 213164, Jiangsu, Peoples R China
[3] Maanshan Univ Technol, Sch Met Engn, Maanshan 243032, Peoples R China
[4] Ufa State Aviat Tech Univ, Dept Phys, 12 K Marx St, Ufa 450008, Russia
基金
中国国家自然科学基金;
关键词
Electrodeposition; Graphene/copper matrix composite; Graphene; Hardness; Tensile strength; RAMAN-SPECTROSCOPY; ELASTIC-MODULUS; MICROSTRUCTURE; INDENTATION; COATINGS; STRENGTH; HARDNESS;
D O I
10.1016/j.surfin.2021.101142
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The Graphene/copper matrix (Gr/Cu) composite foils were successfully fabricated by pulse electrodeposition from copper sulfate solution containing graphene nanoplates ranging from 0.04 to 1.6g/L. The morphology, microstructure, tensile properties and nanoindentation hardness of Gr/Cu composite foils were characterized. The results indicated that the few-layer graphene nanoplates were distributed in nanotwined Cu matrix, Gr/Cu composite foils existed in the form of graphene nanoplates wrapped by Cu grains. With the increase of graphene concentration in electrolyte, the tensile strength of Gr/Cu composite foil decreased from 367 to 236 MPa, then increased up to 274 MPa. Similarly, the hardness decreased from 2.02 to 1.44 GPa, and then increased up to 1.71 GPa. Then, the crystalline size (d) calculated based on the XRD patterns changed from 520 to 890 nm and then decreased to 710 nm. The variation of tensile strength and hardness was mainly attributed to the change of the crystalline size. Besides, graphene defects of Gr/Cu composite foils were taken into account to explain the change of tensile strength and hardness. The models for tensile strength, hardness and graphene concentration were proposed to evaluate the tensile strength and hardness of Gr/Cu composite foils.
引用
收藏
页数:7
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