材料科学
摩擦学
复合数
涂层
石墨
复合材料
溅射沉积
碳纤维
碳化钨
拉曼光谱
磨料
干润滑剂
润滑
类金刚石碳
钨
冶金
溅射
薄膜
纳米技术
物理
光学
作者
Weiming Niu,Yizhuo Xu,Yuting Li,G.H. Liu,Yifan Yao,Hao Li,Xiaojun Xu,Zhou Yan,Minhao Zhu
出处
期刊:Journal of vacuum science & technology
[American Institute of Physics]
日期:2024-02-07
卷期号:42 (2)
摘要
WS2 is a widely used solid lubricating material that exhibits applications in various fields, including automotive components, precision instruments, and key parts that require antiwear properties. However, WS2 is highly susceptible to humidity, which significantly limits its practical utility. In order to investigate and enhance the tribological and mechanical properties of WS2 coatings, a method involving codeposition of carbon (C) and tungsten (W) with WS2 was employed using magnetron sputtering, resulting in the successful preparation of W-diamondlike carbon (DLC)/WS2 composite coatings. Subsequent investigations revealed a synergistic effect of C and W through various methods. The addition of W noticeably improved both the nanohardness and Young’s modulus of the W-DLC coatings, thereby further enhancing the mechanical properties of the W-DLC/WS2 composite coatings and improving their wear resistance. However, it was observed that excessive W tended to oxidize, intensifying the abrasive wear of the composite coatings during friction. Moreover, Raman spectroscopy analysis indicated the presence of carbon in the composite coatings in the form of DLC, which served as a lubrication phase. The presence of DLC facilitated the formation of transfer films composed of graphite. Additionally, it was discovered that the number of graphite layers in the transfer films had an impact on the tribological properties of the coatings.
科研通智能强力驱动
Strongly Powered by AbleSci AI