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2D materials-based metal matrix composites

机译:基于材料的金属基质复合材料

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摘要

2D materials including graphene, transition metal dichalcogenide and hexagonal boron nitride (h-BN) have been widely incorporated with metal matrix to form 2D composites. These composites could be widely applied in the field of automotive, aerospace and marine technologies. Due to the strong covalent bonding and unique laminated structure of 2D materials, they can be used as structural reinforcement in metal matrix for enhanced mechanical and tribological properties. In this review, we first introduced various fabrication techniques for achieving high-reinforcement materials (graphene, MoS2, WS(2)and h-BN) loading ratio and uniform distribution in the composites. Despite the availability of some conventional methods, we have also discussed novel approaches such as wet chemistry, hot extrusion and compression shearing for reducing contamination and minimizing energy consumption during the fabrication process. Examples of graphene-reinforced Al and Mg matrix composites are discussed where the graphene could effectively increase the tensile strength, compressive strength and hardness of the composites. We have also discussed the use of MoS2, WS(2)and h-BN as self-lubrication additives in Al and Cu matrix to reduce the friction coefficient and wear rate.
机译:2D材料,包括石墨烯,过渡金属二硫属化物和六方氮化硼(h-BN)具有金属基质被广泛并入,以形成2D复合材料。这些复合材料可广泛应用于汽车,航空航天和海洋技术领域。由于强共价键合和2D材料的独特层压结构,它们可以被用作金属基体结构增强了增强的机械和摩擦学特性。在本文中,我们首先介绍用于实现高增强材料(石墨烯,二硫化钼,WS(2)和h-BN)负载率和在复合材料中均匀分布的各种制造技术。尽管一些常规方法的可用性,我们还讨论了新颖的方法,如湿化学,热挤压和压缩剪切为在制造过程中减少了污染和减少能源消耗。石墨烯增强Al和Mg基复合材料的实例进行了讨论,其中所述石墨烯可有效地提高拉伸强度,压缩强度和硬度的复合材料的。我们还讨论了在Al和Cu基体中的用途的MoS 2,WS(2)和h-BN的作为自润滑添加剂,以降低摩擦系数和磨损率。

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