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首页> 外文期刊>Journal of nanoscience and nanotechnology >Hardness and Wear Resistance of Carbon Nanotube Reinforced Aluminum-Copper Matrix Composites
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Hardness and Wear Resistance of Carbon Nanotube Reinforced Aluminum-Copper Matrix Composites

机译：碳纳米管增强铝铜基复合材料的硬度和耐磨性

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Recently, carbon nanotubes (CNTs) have been attracted to reinforcement of composite materials due to their extraordinary mechanical, thermal and electrical properties. Many researchers have attempted to develop CNT reinforced metal composites with various fabrication methods and have shown possibilities for structural and functional applications. Among them, CNT reinforced Al matrix composites have become very attractive due to their huge structural application in industry. In this study, CNT reinforced Al-Cu matrix composites with a microstructure of homogeneous dispersion of CNTs in the Al-Cu matrix are investigated. The CNT/Al-Cu composites are fabricated by mixing of CNT/Cu composite powders and Al powders by high energy ball mill process followed by hot extrusion process. The hardness and wear resistance of the CNT/Al-Cu composites are enhanced by 1.4 and 3 times, respectively, compared to those values for the Al-Cu matrix. This remarkable enhancement mainly originates from the homogeneous dispersion of CNTs in Al-Cu matrix and self-lubricant effect of CNTs.
机译：近来，碳纳米管（CNT）由于其非凡的机械，热和电性能而被吸引来增强复合材料。许多研究人员试图用各种制造方法来开发CNT增强金属复合材料，并显示出在结构和功能应用中的可能性。其中，CNT增强的Al基复合材料由于其在工业上的巨大结构应用而变得非常有吸引力。在这项研究中，研究了碳纳米管在铝铜基体中均匀分散的微观结构的碳纳米管增强铝铜基复合材料。碳纳米管/铝-铜复合材料是通过高能球磨工艺将碳纳米管/铜复合粉和铝粉混合，然后进行热挤压工艺制成的。与Al-Cu基体的那些值相比，CNT / Al-Cu复合物的硬度和耐磨性分别提高了1.4倍和3倍。这种显着的增强主要源于CNT在Al-Cu基体中的均匀分散以及CNT的自润滑作用。

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