In this research, carbon fiber and Graphene nanoplatelets (GNP) of different weight percentages of GNP (0, 0.1,0.3, and 0.5 wt.%) reinforced hybrid composites were fabricated via hand layup technique followed by compression molding. For wear analysis to understand the correlation between control parameters (wt.% of filler, normal load, velocity, and sliding distance) and response measurements (weight loss), the design of experiments and analysis of variance (ANOVA) is used. The control variables such as normal loads (5, 10, 15, and 20 N), velocity (1,2,3 and 4 m/s), and sliding distance (200, 300, 400, and 500 m) are selected for the research. It was observed that 0.5wt.% GNP-filled carbon fiber/epoxy composite shows higher tensile and flexural strength than another composite. It has been discovered that adding GNP reduces the wear in terms of weight loss. Scanning electron microscopy (SEM) was used to examine composites' worn surfaces. The analysis concluded that experimental results are closer to optimum results.
The light-weight and excellent mechanical properties of polymer composites have attributed their use in different structural parts in the aerospace and automobile industries over the past decades. In this research, carbon fiber and Graphene nanoplatelets (GNP) reinforced hybrid composites were fabricated via hand layup followed by compression molding. Effect of different weight percent of GNP (0, 0.25, 0.50, 0.75, and 1 wt%) on mechanical, thermal, and physical properties were analyzed. In comparison to other composites, the 0.5 wt% GNP filled carbon fiber/epoxy composite has improved tensile and flexural strength, inter laminar shear strength, and Vickers hardness. At 0.25 wt% GNP-filled epoxy hybrid composite, impact strength was at its peak. The maximum tensile and flexural strength values were obtained at 0.5 wt% of GNP, 11%, and 8% higher than neat fiber composites. The 0.5 wt% GNP composite has the highest heat deflection temperature and thermal conductivity in terms of thermal characteristics. The morphology of composites was explored by field emission scanning electron microscopy and energy-dispersive X-ray analysis. X-ray diffraction and Fourier transform infrared spectroscopy were also performed for nanocomposite characterization.
This paper evaluates the wear properties of epoxy nanocomposites containing GNP (Graphene Nanoplatelets). In this research, variation of GNP (0,0.1, 0.25, and 0.5 wt.%) were used to make nanocomposites. The hand layup technique was used for the fabrication of different composites. The Taguchi method is used to optimize the wear test and its related characteristics. Analysis of variance is used to understand the correlation between input variables and response measurements. Load (0.5,1.0,1.5, and 2.0 kg) and time (4,6,8, and 10 minutes) are the main variable for exploring wear characteristics for this study. It has been discovered that minimum wear in terms of mass loss and friction coefficient are minimum at 0.5wt.% GNP. Scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and RAMAN spectroscopy were used to characterize the wear mechanism. The result shows that the optimized value is closer to the experimental value.
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