Chemisorption of thermal reduced graphene oxide nano-layer film on TNTZ surface and its tribological behavior
In this study, reduced graphene oxide (RGO) sheets were chemisorbed on titanium alloy substrate by making use of 3-aminopropyitriethoxysilane (APTES) as an intermediate coupling agent.The silanol moiety of the APTES molecule was chemically bonded on the substrate surface and the other end of the molecule-amino group was covalently connected with oxygen functional groups of graphene oxide (GO).A thermal reduction process was then carried out to prepare APTES-RGO nano-layer on the surface of Ti-29Nb-13Ta-4.6Zr (TNTZ) alloy.Chemical characterization and surface morphology analyses were performed.The results show that the prepared films are of nanoscale in thickness, with ehemisorptive bonds to the substrate.Furthermore, tribology properties of the films are investigated by UMT tester.Tribological results indicate that the prepared APTES-RGO film lowers the coefficient of friction and improves anti-friction properties of titanium alloy under dry friction.
Graphene oxide Reduced graphene oxide Tribology Coefficient of friction
Peng Fei Li Xian-Hua Cheng
Shanghai Jiao tong University, Shanghai, 200240
国内会议
上海交通大学第16期博士生学术论坛——机械百年·智能制造·智造中国学术论坛
上海
英文
56-65
2013-11-30（万方平台首次上网日期，不代表论文的发表时间）