Macroscale Superlubricity Enabled by Graphene-Coated Surfaces

doi:10.1002/advs.201903239

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Macroscale Superlubricity Enabled by Graphene-Coated Surfaces
	Zhang, Zhenyu ; Du, Yuefeng ; Huang, Siling ; Meng, Fanning ; Chen, Leilei ; Xie, Wenxiang ; Chang, Keke ; Zhang, Chenhui ; Lu, Yao ; Lin, Cheng-Te
刊名	ADVANCED SCIENCE
	2020
卷号	7 期号:4
关键词	ULTRA-LOW FRICTION RAMAN-SPECTROSCOPY NITROGEN ATMOSPHERE MOLECULAR-DYNAMICS FILMS OXIDE LUBRICANT SUBSTRATE ADHESION WEAR
DOI	10.1002/advs.201903239
英文摘要	Friction and wear remain the primary modes for energy dissipation in moving mechanical components. Superlubricity is highly desirable for energy saving and environmental benefits. Macroscale superlubricity was previously performed under special environments or on curved nanoscale surfaces. Nevertheless, macroscale superlubricity has not yet been demonstrated under ambient conditions on macroscale surfaces, except in humid air produced by purging water vapor into a tribometer chamber. In this study, a tribological system is fabricated using a graphene-coated plate (GCP), graphene-coated microsphere (GCS), and graphene-coated ball (GCB). The friction coefficient of 0.006 is achieved in air under 35 mN at a sliding speed of 0.2 mm s(-1) for 1200 s in the developed GCB/GCS/GCP system. To the best of the knowledge, for the first time, macroscale superlubricity on macroscale surfaces under ambient conditions is reported. The mechanism of macroscale superlubricity is due to the combination of exfoliated graphene flakes and the swinging and sliding of the GCS, which is demonstrated by the experimental measurements, ab initio, and molecular dynamics simulations. These findings help to bridge macroscale superlubricity to real world applications, potentially dramatically contributing to energy savings and reducing the emission of carbon dioxide to the environment.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20165]
专题	2020专题
作者单位	1.Zhang, ZY (corresponding author), Dalian Univ Technol, Minist Educ, Key Lab Precis & Nontradit Machining Technol, Dalian 116024, Peoples R China. 2.Li, SZ (corresponding author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Zhenyu,Du, Yuefeng,Huang, Siling,et al. Macroscale Superlubricity Enabled by Graphene-Coated Surfaces[J]. ADVANCED SCIENCE,2020,7(4).
APA	Zhang, Zhenyu.,Du, Yuefeng.,Huang, Siling.,Meng, Fanning.,Chen, Leilei.,...&Guo, Dongming.(2020).Macroscale Superlubricity Enabled by Graphene-Coated Surfaces.ADVANCED SCIENCE,7(4).
MLA	Zhang, Zhenyu,et al."Macroscale Superlubricity Enabled by Graphene-Coated Surfaces".ADVANCED SCIENCE 7.4(2020).