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Aluminum nanocomposites reinforced with monolayer polyaniline (C3N): assessing the mechanical and ballistic properties

机译：用单层聚苯胺增强铝纳米复合材料（C3N）：评估机械和弹道性质

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This study unveils C3N, a new material that serves as an excellent reinforcement to enhance the mechanical properties of aluminum using a molecular dynamics simulation method. Results show that the C3N nanosheets greatly improve the mechanical properties of aluminum-based nanocomposites. With only 1.3 wt% C3N, the Young's modulus, fracture strength, and fracture strain increased by 27, 70, and 51 percent, respectively. A comparison between the reinforcement of graphene and C3N in an aluminum (Al) matrix shows that in terms of the mechanical properties, the graphene-aluminum composite is weaker than the C3N-aluminum composite in the tensile tests, but slightly stronger in the energy adsorption tests. Our findings show that the mechanical properties are highly dependent on the strain rate and temperature. The effects of various imperfections, such as the vacancy, crack, and void defects, on the mechanical properties were also studied. Results show that in the presence of void defects, the structure exhibited higher mechanical properties than when there were other defects. This phenomenon was found to be related to the decrease in the effective load transfer from aluminum to C3N. Furthermore, by increasing the weight percent of the nanosheets up to 5%, the energy absorption rate increased by 25% compared to the pure aluminum. When C3N was placed on top of the aluminum surface, the silicon nanoparticles were associated with a 35% energy adsorption by the nanocomposite. The results of this paper could be used to help understand and overcome some limitations in the fabrication of metallic nanocomposites with 2D material reinforcement.
机译：本研究推出了一种用于使用分子动力学模拟方法提高铝的机械性能的新材料。结果表明，C3N纳米电池大大提高了铝基纳米复合材料的机械性能。只有1.3wt％C3N，杨氏模量，断裂强度和断裂菌株分别增加27,70和51％。石墨烯和C3N在铝（Al）基质中的增强之间的比较表明，就机械性能而言，石墨烯 - 铝复合材料比拉伸试验中的C3N-铝复合材料较弱，但能量吸附略微较强测试。我们的研究结果表明，机械性能高度依赖于应变速率和温度。还研究了各种缺陷的效果，例如空位，裂缝和空隙缺陷，在机械性能上。结果表明，在存在空隙缺陷时，该结构表现出比其他缺陷的机械性能更高。发现这种现象与从铝到C3N的有效载体转移的减少有关。此外，通过将纳米片的重量百分比提高到5％，与纯铝相比，能量吸收率增加25％。当将C3N置于铝表面的顶部时，硅纳米颗粒与纳米复合材料的35％能量吸附有关。本文的结果可用于帮助理解和克服使用2D材料加固的金属纳米复合材料的制造中的一些限制。

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