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首页> 外文期刊>Digest Journal of Nanomaterials and Biostructures >FABRICATION ANDCHARACTERIZATION OF Al 7075 HYBRIDCOMPOSITE REINFORCED WITH GRAPHENE AND SiCNANOPARTICLES BY POWDER METALLURGY
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FABRICATION ANDCHARACTERIZATION OF Al 7075 HYBRIDCOMPOSITE REINFORCED WITH GRAPHENE AND SiCNANOPARTICLES BY POWDER METALLURGY

机译：粉末冶金法制备石墨烯和短裂纹纳米颗粒增强的Al 7075混杂复合材料的制备与表征

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摘要

Processing of Al7075 matrix composites reinforced with content (1.0 wt.%) of graphene and SiC nanoparticles (0.25-2.0 wt.%) using ball milling and vacuum hot press is reported. Near full densification was observed for all the composite compositions at the sinteringtemperature of 61 0 °C (time of 1.5 h and applied pressure of 50 MPa). Detailed analysis ofthe microstructure and mechanical and tribological properties with reinforcement contentin Al7075-graphene-SiCpcompos ites is presented. The results show that the graphene andSiC nanoparticles predominantly are homogeneously distributed on the grain boundariesof Al matrix and SiC nanoparticles are distributed between graphene sheets. There is asignificant increase in t he hardness and wear resistance and a reduction in the coefficientof friction values compared to pure Al7075 alloy.
机译：报道了使用球磨和真空热压机加工含石墨烯和SiC纳米颗粒（0.25-2.0 wt。％）含量（1.0 wt。％）的Al7075基复合材料的过程。在61 0℃的烧结温度（1.5 h的时间和50 MPa的施加压力）下，所有复合材料组合物均接近完全致密化。详细介绍了Al7075-石墨烯-SiCp复合材料中增强成分的微观结构，力学性能和摩擦学性能。结果表明，石墨烯和SiC纳米颗粒主要均匀分布在Al基体的晶界上，SiC纳米颗粒分布在石墨烯片之间。与纯Al7075合金相比，硬度和耐磨性显着提高，并且摩擦系数值降低。

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