Preparation of copper-graphene layered composites by spark plasma sintering. Issue 14 (22nd September 2018)

• Record Type: Journal Article
• Authors: Chen, Xiaohong; Liu, Pengzhong; Liu, Ping; Chen, Haohan
• Is Part Of: Materials science and technology. Volume 34:Issue 14(2018)
• Page Start: 1693
• Page End: 1699
• Publication Date: 2018-09-22
• Subjects: Copper foil -- graphene -- CVD -- SPS -- layered composites -- hardness -- tensile strength -- corrosion resistance; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2018.1472908
• Languages: English
• ISSNs: 0267-0836

Abstract

ABSTRACT: In situ chemical vapour deposition-based graphene growth was designed with copper foil as a substrate and used to prepare copper matrix-graphene layered composites by spark plasma sintering. Mechanical properties and corrosion resistance of layered composites were greatly improved when sintered at 700°C and 25 kN for 10 min. Composite had 12% higher Vickers hardness and 30% higher tensile strength comparing with pure copper, respectively. The corrosion potential ( V corr ) of the layered composites shifted towards more positive values and the corrosion current ( I corr ) was significantly lower than that of copper. Corrosion inhibition efficiency ( ) was as high as 68.38% and 36.90%, and the corrosion rate (CR) was 0.047 and 0.093 mm year −1 for the parallel sample and vertical sample, respectively.