Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface

doi:10.1007/s40544-021-0545-x

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface
	Zheng, Zhiwen 2,3; Liu, Xiaolong 2; Huang, Guowei 1; Chen, Haijie 2,3; Yu, Hongxiang 2,3; Feng, Dapeng 2; Qiao, Dan 2
刊名	FRICTION
	2021
卷号	10 期号:9 页码:1365-1381
关键词	macroscale superlubricity ionic liquid (IL) hydroxylated boron nitride steel/steel interface mixed lubrication
ISSN号	2223-7690
DOI	10.1007/s40544-021-0545-x
英文摘要	Macroscale superlubricity is a prospective strategy in modern tribology to dramatically reduce friction and wear of mechanical equipment; however, it is mainly studied for point-to-surface contact or special friction pairs in experiments. In this study, a robust macroscale superlubricity for point-to-point contact on a steel interface was achieved for the first time by using hydroxylated modified boron nitride nanosheets with proton-type ionic liquids (ILs) as additives in ethylene glycol aqueous (EG(aq)). The detailed superlubricity process and mechanism were revealed by theoretical calculations and segmented experiments. The results indicate that hydration originating from hydrated ions can significantly reduce the shear stress of EG(aq), which plays an essential role in achieving superlubricity. Moreover, the IL induces a tribochemical reaction to form a friction-protective film. Hydroxylated boron nitride nanosheets (HO-BNNs) function as a polishing and self-repairing agent to disperse the contact stress between friction pairs. Superlubricity involves the change in lubrication state from boundary lubrication to mixed lubrication. This finding can remarkably extend the application of superlubricity for point-to-point contact on steel surfaces for engineering applications.
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000726481700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154954]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Zheng, Zhiwen,Liu, Xiaolong,Huang, Guowei,et al. Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface[J]. FRICTION,2021,10(9):1365-1381.
APA	Zheng, Zhiwen.,Liu, Xiaolong.,Huang, Guowei.,Chen, Haijie.,Yu, Hongxiang.,...&Qiao, Dan.(2021).Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface.FRICTION,10(9),1365-1381.
MLA	Zheng, Zhiwen,et al."Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface".FRICTION 10.9(2021):1365-1381.