Self-lubrication behavior of the reaction-formed graphite/SiC composites with optimizing graphite content

Xue, Renyu; Wang, Jiping; Zeng, Yuke; Zhang, Nan–Long; Zhang, Zhejian; Huang, Shengqin; Xiao, Zhichao; Xia, Hongyan

doi:10.1016/j.wear.2023.204946

Cited by 8 publications

(3 citation statements)

References 22 publications

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“…As a carbon-based solid lubricating material, graphite coating has excellent antiwear properties [245]. In graphite coatings, carbon atoms form a hexagonal honeycomb structure in a specific arrangement [242,246]. Graphite exhibits a layered structure, and the interaction between graphite layers is mainly driven by van der Waals forces, which are weak attractions [243,247].…”

Section: Graphite Coatingmentioning

confidence: 99%

Solid Lubrication System and Its Plasma Surface Engineering: A Review

Li,

Zhou,

2023

Lubricants

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In aerospace, aviation, nuclear power, and other high-tech fields, some essential moving parts must operate under high vacuum, high load, intense radiation, and other conditions. Under such extreme conditions, only solid lubricating materials can meet the lubrication requirements. Traditional material modification methods have problems such as high energy consumption, severe pollution, and narrow scope of application. Plasma modification technology can overcome these shortcomings. This paper focuses on several commonly used plasma preparation techniques for solid lubricating coatings, including plasma chemical heat treatment, physical vapor deposition, plasma immersion ion implantation and deposition, plasma spraying, and plasma electrolytic oxidation. Subsequently, the material systems of metal-based solid lubrication coatings are reviewed: soft metals, oxides, sulfides, nitrides, and carbon-based materials. Finally, found that the development of new solid lubricants, the improvement of existing preparation technology, and the development of new processes are the key development directions in the future.

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Section: Graphite Coatingmentioning

confidence: 99%

Solid Lubrication System and Its Plasma Surface Engineering: A Review

Li,

Zhou,

2023

Lubricants

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“…During the braking process, the contact area can be a random combination of these two areas [11,13,14]. However, due to the high hardness of SiC and Si as compared to the carbon phase, the softer C phase [15,16] is more prone to wear compared to the SiC and Si phases [17,18]. The friction between different areas during the braking process may generate instabilities [14,19,20].…”

Section: Introductionmentioning

confidence: 99%

“…The friction between different areas during the braking process may generate instabilities [14,19,20]. The microstructural design of C/C-SiC for wear has attracted more attention in recent years [12][13][14][15][16][17][18][19]21]. Research shows that the wear rate of C/C-SiC brake materials increases exponentially with the braking speed [22,23].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Impact of C/Si Ratio on the Friction and Wear Behavior of Si/SiC Coatings Prepared on C/C-SiC Composites by Slurry Reaction Sintering and Chemical Vapor Infiltration

Zhao,

Cheng,

Chen

et al. 2024

Coatings

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Carbon/carbon (C/C)-SiC composite materials have a series of outstanding advantages, such as a light weight, resistance to thermal degradation, excellent friction performance, and good stability in complex environments. In order to improve the wear resistance of the C/C-SiC composite matrix, Si/SiC coatings were prepared by a combination of chemical vapor infiltration and reactive sintering. The wear performance of Si/SiC coatings with different amounts of silicon carbide was investigated. When the carbon silicon ratio in the slurry was 1:3, the SiC particle content in the coating was 93.0 wt.%; the prepared Si/SiC coating exhibited the lowest wear rate of 3.2 × 10−3 mg·N−1·m−1 among the four coatings; and its frictional coefficient was 0.95, which was higher than that of the substrate. As the residual Si content in the coating decreased, the continuity between SiC particles in the coating was improved. Both the high hardness of SiC and the dense coating contributed significantly to enhancing the coating’s wear resistance.

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