首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Tribological performances of micro/nano-Si_3N_4-PTFE-EP composites prepared by high-pressure compression molding
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Tribological performances of micro/nano-Si_3N_4-PTFE-EP composites prepared by high-pressure compression molding

机译:通过高压压缩成型制备的微/纳米Si_3N_4-PTFE-EP复合材料的摩擦学性能

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摘要

It is of great significance to improve the tribological performances of self-lubricating system to reduce the exfoliation of abrasive particles. In this work, tribological performances of Si3N4-PTFE-EP self-lubricating composites with surface-modified micro/nano-Si3N4 (20 nm, 100 nm, 500 nm, 1-3 mu m, and 10 mu m) prepared by high-pressure (3 GPa) compression molding are investigated systematically. The results show that although the surface modification of nano-Si3N4 can improve tribological performances of Si3N4-PTFE-EP composite, Si3N4 particle size is the more critical factor. When Si3N4 particle size is 10 mu m, the tribological performances of 70M-Si3N4-30PTFE-EP, 50M-Si3N4-50PTFE-EP, and 30M-Si3N4-70PTFE-EP composites are optimal.
机译:改善自润滑系统的摩擦学性能是重要的重要性,以减少磨料颗粒的剥离。 在这项工作中,通过高度制备的具有表面改性的微/纳米-Si3N4(20nm,100nm,500nm,1-3μm和10μm)的表面改性的微/纳米Si 3n4(20nm,100nm,500nm,1-3μm和10μm)的摩擦学性能。 系统地研究了压力(3GPa)压缩成型。 结果表明,尽管纳米Si3N4的表面改性可以改善Si3N4-PTFE-EP复合材料的摩擦学性能,但Si3N4粒径是更关键的因素。 当Si3N4粒径为10μm时,70m-si3n4-30ptFe-ep,50m-si3n4-50ptfe-ep和30m-si3n4-70ptfe-EP复合材料的摩擦学性能是最佳的。

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