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

doi:10.1007/s40544-021-0545-x

	Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface
	Zheng, Zhiwen 1,2; Liu, Xiaolong 1; Huang, Guowei3 ; Chen, Haijie 1,2; Yu, Hongxiang 1,2; Feng, Dapeng 1; Qiao, Dan 1
	2022-09
发表期刊	FRICTION
ISSN	2223-7690
卷号	10 期号:9 页码:1365-1381
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.
关键词	macroscale superlubricity ionic liquid (IL) hydroxylated boron nitride steel/steel interface mixed lubrication
DOI	10.1007/s40544-021-0545-x
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Mechanical
WOS记录号	WOS:000726481700001
出版者	SPRINGER
EI入藏号	20214911289482
EI主题词	Ionic liquids
EI分类号	712.1 Semiconducting Materials ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds
来源库	WOS
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://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
通讯作者	Feng, Dapeng; Qiao, Dan
作者单位	1.Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, 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,2022,10(9):1365-1381.
APA	Zheng, Zhiwen.,Liu, Xiaolong.,Huang, Guowei.,Chen, Haijie.,Yu, Hongxiang.,...&Qiao, Dan.(2022).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(2022):1365-1381.

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