Effect of a micro-textured surface with deposited MoS2-Ti film on long-term wear performance in vacuum

Feng, Xingguo; Wang, Rui; Guang, Wang; Zheng, Yugang; Hu, Hanjun; Yang, Liu; Zhang, Kaifeng; Zhou, Hui

doi:10.1016/j.surfcoat.2022.128722

Cited by 14 publications

(1 citation statement)

References 50 publications

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“…Lubrication failure of moving parts in spacecraft induced by vacuum, atomic oxygen irradiation and high/low temperature, etc., is an issue needing urgent attention in space environment [ 1 , 2 , 3 , 4 , 5 , 6 ]. When most materials are exposed to vacuum environment, mass loss and performance degradation occur [ 7 , 8 ]. For example, the direct contact sliding metal surfaces are prone to adhesion and even cold welding; therefore, the sliding surfaces was needed to lubricate.…”

Section: Introductionmentioning

confidence: 99%

High Wear Resistance of POSS Grafted-Polyimide/Silica Composites under Atomic Oxygen Conditions

Yang

Lei

et al. 2023

Polymers

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Polyimide-bearing retainer has been successfully used in space environment. However, the structural damage of polyimide induced by space irradiation limits its wide use. In order to further improve the atomic oxygen resistance of polyimide and comprehensively investigate the tribological mechanism of polyimide composites exposed in simulate space environment, 3-amino-polyhedral oligomeric silsesquioxane (NH2-POSS) was incorporated into a polyimide molecular chain and silica (SiO2) nanoparticles were in situ added into polyimide matrix and the combined effect of vacuum environment, and atomic oxygen (AO) on the tribological performance of polyimide was studied using bearing steel as the counterpart by a ball on disk tribometer. XPS analysis demonstrated the formation of protective layer induced by AO. The wear resistance of polyimide after modification was enhanced under AO attack. FIB-TEM confirmed that the inert protective layer of Si was formed on the counterpart during the sliding process. Mechanisms behind this are discussed based on the systematic characterization of worn surfaces of the samples and the tribofilms formed on the counterbody.

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Section: Introductionmentioning

confidence: 99%

High Wear Resistance of POSS Grafted-Polyimide/Silica Composites under Atomic Oxygen Conditions

Yang

Lei

et al. 2023

Polymers

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Wear resistance of molybdenum disulfide-based coatings on titanium alloys: a review

Li,

Zhang,

Cao

et al. 2024

J Mater Sci

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Nano-multilayered ZrN-Ag/Mo-S-N film design for stable anti-frictional performance at a wide range of temperatures

Ju,

Luan,

et al. 2024

Friction

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A multilayer film, composed by ZrN-Ag (20 nm) and Mo-S-N (10 nm) layers, combining the intrinsic lubricant characteristics of each layer was deposited using DC magnetron sputtering system, to promote lubrication in a wide-range of temperatures. The results showed that the ZrN-Ag/Mo-S-N multilayer film exhibited a sharp interface between the different layers. A face-centered cubic (fcc) dual-phases of ZrN and Ag co-existed in the ZrN-Ag layers, whilst the Mo-S-N layers displayed a mixture of hexagonal close-packed MoS2 (hcp-MoS2) nano-particles and an amorphous phase. The multilayer film exhibited excellent room temperature (RT) triblogical behavior, as compared to the individual monolayer film, due to the combination of a relative high hardness with the low friction properties of both layers. The reorientation of MoS2 parallel to the sliding direction also contributed to the enhanced anti-frictional performance at RT. At 400 °C, the reorientation of MoS2 as well as the formation of MoO3 phase were responsible for the lubrication, whilst the hard t-ZrO2 phase promoted abrasion and, consequently, led to increasing wear rate. At 600 °C, the Ag2MoO4 double-metal oxide was the responsible for the low friction and wear-resistance; furthermore, the observed transformation from t-ZrO2 to m-ZrO2, could also have contributed to the better tribological performance.

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Effect of a micro-textured surface with deposited MoS2-Ti film on long-term wear performance in vacuum

Cited by 14 publications

References 50 publications

High Wear Resistance of POSS Grafted-Polyimide/Silica Composites under Atomic Oxygen Conditions

High Wear Resistance of POSS Grafted-Polyimide/Silica Composites under Atomic Oxygen Conditions

Wear resistance of molybdenum disulfide-based coatings on titanium alloys: a review

Nano-multilayered ZrN-Ag/Mo-S-N film design for stable anti-frictional performance at a wide range of temperatures

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