Fabricating graphene-titanium composites by laser sintering PVA bonding graphene titanium coating: Microstructure and mechanical properties. (1st February 2018)

• Record Type: Journal Article
• Authors: Hu, Zengrong; Chen, Feng; Xu, Jiale; Ma, Zhenwu; Guo, Huafeng; Chen, Changjun; Nian, Qiong; Wang, Xiaonan; Zhang, Min
• Is Part Of: Composites. Number 134(2018)
• Page Start: 133
• Page End: 140
• Publication Date: 2018-02-01
• Subjects: Nanocomposites -- Graphene -- Titanium -- Laser sintering; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2017.09.069
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Graphene reinforced titanium (Ti-Gr) nanocomposite was prepared by laser sintering of the mixture of PVA bonding graphene sheets and titanium powders. During laser sintering process, the survival and uniform dispersion of graphene have been demonstrated, which embedded in Ti matrix, and formed Ti-Gr nanocomposites. Microstructures and components of the nanocomposites were studied using scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS) and Raman spectroscopy. The survival of graphene sheets in nanocomposite is due to rapid heating/cooling in laser sintering process. Hardness measurements showed that the laser sintered Ti-Gr nanocomposites achieved more than 2-fold Vickers Hardness value of barely sintered Ti.