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首页> 外文期刊>Advanced Science Letters >Friction and Wear Properties of Si_3N_4 and SiC Used for Water-Lubricated Sliding Bearings
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Friction and Wear Properties of Si_3N_4 and SiC Used for Water-Lubricated Sliding Bearings

机译：用于水润滑滑动轴承的Si_3N_4和SiC的摩擦磨损特性

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摘要

Water-lubricated ceramic bearings are attractive as the bearings of spindle system because of their superior thermal stability, stiffness and carrying capacity of rotor. In this paper, friction and wear properties of SiC and Si_3N_4 bearings under water-lubricated conditions were evaluated for proper application of ceramic materials as journal bearings in the high-speed high-precision spindle system. The results demonstrate that in comparison with Si_3N_4, SiC showed lower friction coefficient in short running-in time, and higher carrying capacity and smoother surface. In addition, the wear rate of SiC was lower than that of Si_3N_4 due to the occurrence of SiO_2 layer. Overall, under the current experimental conditions, SiC ceramic was more feasible for water-lubricated bearings to keep the high performance of spindle system.
机译：水润滑陶瓷轴承作为主轴系统轴承具有吸引力，因为它们具有出色的热稳定性，刚度和转子的承载能力。本文评估了SiC和Si_3N_4轴承在水润滑条件下的摩擦磨损性能，以研究陶瓷材料在高速高精度主轴系统中作为轴颈轴承的正确应用。结果表明，与Si_3N_4相比，SiC在较短的磨合时间内显示出较低的摩擦系数，具有较高的承载能力和更光滑的表面。另外，由于SiO_2层的出现，SiC的磨损率低于Si_3N_4。总体而言，在当前的实验条件下，SiC陶瓷更适合用于水润滑轴承，以保持主轴系统的高性能。

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