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首页> 外文期刊>Journal of Tribology >Influence of Graphite on Tribological Properties of Hexagonal Boron Nitride Hybrid/Polyimide Composites in Wide Temperature Range
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Influence of Graphite on Tribological Properties of Hexagonal Boron Nitride Hybrid/Polyimide Composites in Wide Temperature Range

机译：石墨对六边形氮化物杂交/聚酰亚胺复合材料宽温度范围的影响

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摘要

Tribological and mechanical properties of aramid fiber (AF), graphite (Gr), and hexagonal boron nitride (h-BN) hybrid polyimide composites were investigated under room and high temperature. Results show that, Gr in composite reinforced with AF and h-BN can reduce coefficient of friction (COF) and improve antiwear property of composites under room temperature. Gr can accelerate the formation of transfer film under high temperature without sacrificing the wear resistant of composites. Transfer film of composites reinforced with Gr and h-BN simultaneously present more smooth and uniform compared with that of composites reinforced with only AF and h-BN. However, under higher temperature, composite reinforced with pure Gr present higher COF s and wear rates (WRs) compared with composites filled with h-BN and Gr simultaneously. Comprehensively, composite filled with 10% AF, 3% h-BN, and 4% Gr is the optimum composition.
机译：在室温和高温下研究了芳族聚酰胺纤维（AF），石墨（GR）和六边形氮化物（H-BN）杂化聚酰亚胺复合材料的摩擦力学和力学性能。 结果表明，随着AF和H-BN加强的复合材料中GR可以降低摩擦系数（COF），并在室温下改善复合材料的抗磨性。 GR可以在高温下加速转移膜的形成而不牺牲复合材料的耐磨性。 与仅用AF和H-BN加强的复合材料相比，使用GR和H-BN加强的复合材料的转移膜同时呈现更平滑和均匀。 然而，在较高温度下，与纯GR的复合材料加强较高的COF S和磨损率（WRS）与填充有H-BN和GR的复合材料同时。 综合，填充10％AF，3％H-BN和4％GR的复合材料是最佳组合物。

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