Rajeshkumar G, Nagaraja K C, Ravikumar P, Mavinkere Rangappa Sanjay, Siengchin Suchart
Department of Mechanical Engineering, PSG Institute of Technology and Applied Research, Coimbatore, Tamil Nadu, India.
Department of Mechanical Engineering, Acharya Institute of Technology, Bengaluru, Karnataka, India.
Heliyon. 2024 Aug 3;10(15):e35554. doi: 10.1016/j.heliyon.2024.e35554. eCollection 2024 Aug 15.
Composite materials have become prominent in the aerospace, automotive, wind energy, biomedical, and machine tool industries. This has demanded the evaluation of the dynamic mechanical and tribological behaviour of composites to understand their performance and ensure their reliability and safety in varied operating conditions. In this study, the effect of halloysite nano-clay addition on the dynamic mechanical and tribological properties of the carbon/glass hybrid composites was investigated. The composites were produced with the vacuum assisted resin infusion process. by varying the content of halloysite nano-clay (1, 3, and 5 wt%). The dynamic mechanical properties of the manufactured composites were examined at temperatures ranging from 30 °C to 180 °C. The tribological properties of the specimens were assessed by varying the applied load (10, 20, and 30 N), sliding speed (1.5, 3, and 4.5 m/s) and sliding distance (500, 1000, and 1500 m). Box-Behnken design was utilized to optimize the number of experiments. The results showed that the halloysite-added samples had better dynamic mechanical and tribological properties than the carbon/glass hybrid composites. Especially, hybrid composites containing 3 wt% halloysite outperformed the other composites investigated. A scanning electron microscope (SEM) was used to examine the worn surface and wreckage in the investigated composite specimens.
复合材料在航空航天、汽车、风能、生物医学和机床工业中已变得十分突出。这就要求对复合材料的动态力学和摩擦学行为进行评估，以了解其性能，并确保其在各种运行条件下的可靠性和安全性。在本研究中，研究了添加埃洛石纳米粘土对碳/玻璃混杂复合材料动态力学和摩擦学性能的影响。采用真空辅助树脂灌注工艺制备复合材料，通过改变埃洛石纳米粘土的含量（1%、3%和5%重量）。在30°C至180°C的温度范围内对制备的复合材料的动态力学性能进行了检测。通过改变施加的载荷（10N、20N和30N）、滑动速度（1.5m/s、3m/s和4.5m/s）和滑动距离（500m、1000m和1500m）来评估试样的摩擦学性能。采用Box-Behnken设计优化实验次数。结果表明，添加埃洛石的样品比碳/玻璃混杂复合材料具有更好的动态力学和摩擦学性能。特别是，含有3%重量埃洛石的混杂复合材料性能优于所研究的其他复合材料。使用扫描电子显微镜（SEM）检查所研究的复合试样的磨损表面和残骸。
