Abstract Tribological behaviors of carbon fibers (CF) reinforced poly-ether-ether-ketone (PEEK) composites are investigated at low speeds ranging from 0.01 to 0.2 m/s under pressures varying from 1 to 30 MPa. Nano-Bi2O3, nano-SiO2 and conventional solid lubricants (graphite and polytetrafluoroethylene) are further added into CF-reinforced PEEK, respectively. It is demonstrated that a small load and relatively high speed are favorable for the wear-reduction role of nano-Bi2O3, while the positive role of nano-SiO2 is pronounced at a high load and speed. Friction and wear-reduction roles of the solid lubricants are the most significant at low load and low speed. It turns out that functionalities of the fillers are closely associated with their roles in tribofilm growth governed by complex physical and chemical actions.

中文翻译：

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低速下 PEEK 复合材料和钢滑动界面的摩擦膜生长

摘要 研究了碳纤维 (CF) 增强的聚醚醚酮 (PEEK) 复合材料在 0.01 至 0.2 m/s 的低速和 1 至 30 MPa 的压力下的摩擦学行为。纳米Bi2O3、纳米SiO2和常规固体润滑剂（石墨和聚四氟乙烯）分别进一步添加到CF增强PEEK中。结果表明，小负载和较高速度有利于纳米Bi2O3的减磨作用，而纳米SiO2在高负载和高速度下的积极作用显着。固体润滑剂的摩擦和磨损减少作用在低负载和低速时最为显着。事实证明，填料的功能与其在受复杂物理和化学作用控制的摩擦膜生长中的作用密切相关。