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Effect of single wall carbon nanotubes on strength properties of aluminum composite produced by spark plasma sintering and extrusion

机译:单壁碳纳米管对火花等离子体烧结和挤出产生的铝复合材料强度性能的影响

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摘要

Aluminum composite material reinforced by single walled carbon nanotubes (SWCNT) was made by spark plasma sintering (SPS) followed by extrusion directly on spark plasma sintering machine. For the first time it was possible to carry out not only sintering by SPS method, but also extrusion of aluminum-based composites with SWCNT additives directly on the Labox 1575. The effect of the degree of cold deformation and annealing on the strength of aluminum containing SWCNT is studied. It was found that there is an optimal degree of cold deformation, providing maximum growth of strength of aluminum composites reinforced by SWCNT. It was shown that composites extruded at elevated temperature had more significant strength decrease after annealing. Nevertheless, these composites have the highest strength values. The increase in ultimate tensile strength and yield strength of aluminum due to SWCNT additives was 47% and 158%, respectively.
机译:由单壁碳纳米管(SWCNT)加强的铝合金材料通过火花等离子体烧结(SPS)进行,然后直接挤出火花等离子体烧结机。首次,不仅可以通过SPS方法烧结,还可以直接在Labox 1575上用SWCNT添加剂挤出铝基复合材料。冷变形程度和退火对含铝强度的影响SWCNT是研究过的。发现存在最佳的冷变形程度,从而提供SWCNT加强的铝复合材料强度的最大增长。结果表明,在升高温度下挤出的复合材料在退火后的强度下降更大。然而,这些复合材料具有最高的强度值。由于SWCNT添加剂引起的铝的最终拉伸强度和铝屈服强度的增加分别为47%和158%。

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