Low friction properties of graphene films

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289024
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: The University of Tokyo
• Principal Investigator: Choi Junho 東京大学, 工学(系)研究科(研究院), 准教授 (30392632)
• Co-Investigator(Kenkyū-buntansha): 加藤 孝久 東京大学, 工学(系)研究科(研究院), 教授 (60152716)
• Co-Investigator(Renkei-kenkyūsha): NAKAO Setsuo 産業技術総合研究所, サステナブルマテリアル研究部門, 主任研究員 (60357605)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: graphene / friction / PBII

Outline of Final Research Achievements

Graphene has excellent mechanical characteristics and chemical stability, and its use as an ultrathin solid lubrication material is especially promising. In recent years, encouraging results have been reported on the friction characteristics of graphene, not only on the microscale or nanoscale but also on the macroscale. As the macroscale friction properties of graphene vary greatly depending on the friction conditions, it is important to find the optimum conditions to obtain better friction properties and elucidate the friction mechanism.
In this study, we succeeded in the onset of ultralow friction phenomenon of the graphene on the macro-load scale under air and controlled environmental conditions, and clarified the friction mechanism. Furthermore, for application to the industry, we developed a direct synthesis method of graphene onto a target substrate, and examined the uniformity of ion implantation for the application to the three-dimensional machine elements.

Free Research Field

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