纳米片
润滑
材料科学
石墨烯
氧化物
摩擦学
复合材料
吸附
纳米核糖学
纳米技术
冶金
化学
有机化学
作者
Xiangyu Ge,Linghao Zhang,Qiuyu Shi,Yuhao Xing,Yanfei Liu,Zhengfeng Cao,Wenzhong Wang
标识
DOI:10.1016/j.apsusc.2024.160039
摘要
Achieving macroscopic superlubricity in electric environments on steel surfaces remains a challenge. This study achieved macroscopic superlubricity on steel surfaces by employing graphene oxide (GO) nanosheet additives with electric stimulation. Multiple factors were studied regarding the effect on lubrication performances. The morphology of the GO adsorption film on the intermittent contact surface (disc) is the main factor affecting the COF, as the continuous contact surface (ball) is required to overcome the peaks of GO film during sliding. The mechanism underlying the friction reduction is concluded as follows: when the intermittent contact surface (disc) was the positive pole, negatively charged GO migrated towards it, forming an adsorption film on its surface. The surface layer orientation of the GO film is relatively smooth, attributed to its contact with the negative pole (ball), resulting in friction reduction. This study illustrates the feasibility of achieving macroscopic superlubricity on steel interfaces through electric stimulation, thereby laying the groundwork for practical applications of superlubricity in engineering contexts, particularly in electric environments.
科研通智能强力驱动
Strongly Powered by AbleSci AI