Fabrication and Mechanical Behavior of Al/APC-2 Hybrid Cross-Ply Nanocomposite Laminates at Elevated Temperature
Abstract: The innovatively high performance AL/APC-2 hybrid cross-ply nanocomposite laminates were successfully fabricated. The well-known problem of delamination was mostly eliminated by the surface treatment of electroplating of Al 2024 sheets, instead of conventionally chemical etching by CrO3 etchants. Additions of optimal nanoparticles of SiO2 into APC-2 cross-ply laminates were used to improve the mechanical properties of hybrid laminates even at elevated temperature. From the received data, the mechanical proper ties, such as ultimate tensile strength and longitudinal stiffness, of hybrid nanocomposite laminates by electroplating are better than those by chemical etching about 6% to 10%. As for the tension-tension (T-T) constant stress amplitude cyclic tests at elevated temperature, the applies stress vs. cycles (S-N) curves go downwards as the temperature rising. However, the normalized S-N curves, by the corresponding ultimate strength at specific temperature, become mixed together. They are separate at least over 105 cycles. That evidently demonstrate the superior properties of the hybrid nanocomposite laminates have been achieved. Also, no delaminations were found in tensile and cyclic tests at elevated temperature. That significantly shows a nearly perfect bonding in hybrid laminates is made.
文章引用: 任明华 , 宋宜骏 , 张哲恺 , 赖盈达 (2011) 铝合金/碳纤维/聚醚醚酮混和十字迭奈米复材积层板之研制与高温下机械行为。 纳米技术， 1， 34-38. doi: 10.12677/nat.2011.11007
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