Dependence of Friction and Wear on the Microstructures of WS2 Films under a Simulated Space Environment

doi:10.1021/acsami.0c18996

	Dependence of Friction and Wear on the Microstructures of WS2 Films under a Simulated Space Environment
	Yan, Zhen 2,3; Sui, Xudong 1,2,3; Yan, Mingming 2,3; Liu, Jian 2,3; Zhang, Shuaituo 2,3; Hao, Junying 2,3; Li, Wensheng 4; Liu, Weimin 2,3
刊名	ACS Applied Materials and Interfaces
	2020-12-16
卷号	12 期号:50 页码:56632-56641
关键词	Crystals Irradiation Tribology Tungsten compounds Wear of materials Friction and wear Friction and wear characteristics Friction coefficients Lubricating mechanism Solid lubricating films Space environment Tribological behaviors Tribological properties
ISSN号	19448244
DOI	10.1021/acsami.0c18996
英文摘要	Atomic oxygen (AO) has an important influence on the performance of solid lubricating materials applied in space. The tribological behaviors of both sputtered WS2 films without and with a dense layer were mainly investigated under the ex situ AO irradiation condition. AO irradiation results in the worse tribological property for the WS2 film without a dense layer. On the contrary, it is surprising that the WS2 film with the dense layer exhibits a lower friction coefficient after irradiation, which is different from the reported results that the solid lubricating films always increased the friction and wear because the surfaces of the films were oxidized by AO. Meanwhile, it is found that the generated W oxides contributes to the partial surface of the wear track becoming smooth because of the shear and slip of crystal planes for WS2 crystals on the surface of the dense layer. Eventually, the lubricating mechanisms of the irradiated WS2 films are also revealed via correlating the friction and wear characteristics of the films. © 2020 American Chemical Society.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000600202300106
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151103]
专题	材料科学与工程学院
作者单位	1.Qingdao Center of Resource Chemistry and New Materials, Qingdao; 266000, China; 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou; 730000, China; 3.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing; 100049, China; 4.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Yan, Zhen,Sui, Xudong,Yan, Mingming,et al. Dependence of Friction and Wear on the Microstructures of WS2 Films under a Simulated Space Environment[J]. ACS Applied Materials and Interfaces,2020,12(50):56632-56641.
APA	Yan, Zhen.,Sui, Xudong.,Yan, Mingming.,Liu, Jian.,Zhang, Shuaituo.,...&Liu, Weimin.(2020).Dependence of Friction and Wear on the Microstructures of WS2 Films under a Simulated Space Environment.ACS Applied Materials and Interfaces,12(50),56632-56641.
MLA	Yan, Zhen,et al."Dependence of Friction and Wear on the Microstructures of WS2 Films under a Simulated Space Environment".ACS Applied Materials and Interfaces 12.50(2020):56632-56641.