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- Title
Fabrication of Cu/Al/Cu Laminated Composites Reinforced with Graphene by Hot Pressing and Evaluation of Their Electrical Conductivity.
- Authors
Zheng, Hang; Zhang, Ruixiang; Xu, Qin; Kong, Xiangqing; Sun, Wanting; Fu, Ying; Wu, Muhong; Liu, Kaihui
- Abstract
Metal laminated composites are widely used in industrial and commercial applications due to their excellent overall performance. In this study, the copper/graphene-aluminum-copper/graphene (Cu/Gr-Al-Cu/Gr) laminated composites were prepared by ingenious hot pressing design. Raman, optical microscope (OM), scanning electron microscope (SEM), van der Pauw (vdP), and X-Ray Diffractometer (XRD) were used to investigate the graphene status, interface bonding, diffusion layer thickness, electrical conductivity, Miller indices and secondary phases, respectively. The results demonstrate that the Cu-Al interfaces in the Cu/Gr-Al-Cu/Gr composites were free of pores, cracks and other defects and bonded well. The number of graphene layers was varied by regulating the thickness of the Cu/Gr layer, with the Cu/Gr foils fabricated by chemical vapor deposition (CVD). The electrical conductivity of the composite was significantly improved by the induced high-quality interfaces Cu/Gr structure. The increased number of graphene layers is beneficial for enhancing the electrical conductivity of the Cu/Gr-Al-Cu/Gr composite, and the highest conductivity improved by 20.5% compared to that of raw Al.
- Subjects
ELECTRIC conductivity; COPPER; LAMINATED materials; HOT pressing; PRESS criticism; GRAPHENE synthesis; ALUMINUM composites
- Publication
Materials (1996-1944), 2023, Vol 16, Issue 2, p622
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma16020622