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Tribological behaviour of W-S-C coated ceramics in a vacuum environment
Tribology International ( IF 6.1 ) Pub Date : 2021-11-27 , DOI: 10.1016/j.triboint.2021.107375
K. Simonovic 1 , T. Vitu 1 , A. Cammarata 1 , A. Cavaleiro 2 , T. Polcar 1
Affiliation  

Sliding of the WSC coated ceramics (ball-on-disc configuration) was investigated under vacuum condition at multiple loads (2–18 N), and each experiment was followed by detailed Raman and SEM analysis of both the wear track and the wear scar (on the ball). Main finding is that under low loads (up to 8 N), wear is polishing, carbon structure becomes more ordered and the number of WS2 monolayer increases. Above 8 N, wear transitions into an abrasive regime interrupting the aforementioned processes increasing both friction and wear. Furthermore, roles of the coating components were differentiated: WS component is responsible for the low friction, whereas the carbon part is responsible for excellent wear properties.



中文翻译:

WSC涂层陶瓷在真空环境中的摩擦学行为

在真空条件下在多个载荷 (2-18 N) 下研究了 WSC 涂层陶瓷(球盘配置)的滑动,每个实验之后对磨损轨迹和磨损疤痕进行详细的拉曼和扫描电镜分析(在球上)。主要发现是在低负载(高达 8 N)下,磨损正在抛光,碳结构变得更加有序,WS 2单层的数量增加。超过 8 N,磨损转变为磨损状态,中断上述过程,增加摩擦和磨损。此外,涂层组分的作用有所不同:WS 组分负责低摩擦,而碳组分负责优异的耐磨性能。

更新日期:2021-12-03
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