MoS<sub>2</sub>/SiCH固液复合润滑体系摩擦学性能研究

MoS₂/SiCH固液复合润滑体系摩擦学性能研究

摘要: 本文中通过考察MoS₂薄膜/SiCH固液复合润滑体系的真空摩擦学性能, 探究了该复合润滑体系的摩擦磨损机理。研究表明射频溅射MoS₂薄膜表面所固有的柱状晶体结构具有明显的润滑油吸附功能, 提高了MoS₂薄膜 /SiCH固液复合润滑体系的真空摩擦学性能。球盘摩擦试验结果表明:当仅对钢盘表面沉积MoS₂薄膜时, 该固液复合润滑体系的滑动摩擦寿命达到1.86×10⁶ r, 为采用SiCH油润滑时摩擦寿命的1.2倍, 是MoS₂薄膜固体润滑状态的 4倍, 表现出了良好的协同润滑效应。

Abstract: The tribological properties of MoS₂/SiCH composite system were investigated in vacuum environment, and the friction/wear mechanisms were also discussed. The results show that the MoS₂/SiCH composite system exhibited better tribological performances because the characteristic columnar microstructure of sputtered MoS₂ film could adsorb SiCH oil under the composite lubrication condition. The MoS₂/SiCH composite system exhibited a good synergistic effect as only the disk was coated with the MoS₂ film. In this case, the wear life was 1.86×10⁶ cycles, which was ~1.2 and 4.0 times longer than those at separate SiCH oil and MoS₂ film lubrication conditions.