This research focuses on the static mechanical, thermal and tribological properties of carbon fibre epoxy (CF/Ep) composites filled with boron nitride (BN) micro-filler powder (BN-CF/Ep). The mechanical properties studied were tensile, flexural, interlaminar shear strength and hardness. The thermal properties studied were dynamic mechanical and thermogravimetric analyses which were analysed through dynamic mechanical analyser and thermogravimetric analyser, respectively. The curing ability and dispersion of BN filler in the Ep and composites were investigated through differential scanning calorimetry, Fourier-transform infrared spectra and scanning electron microscopy. The tribological properties focused were three-body abrasion and dry sliding friction and wear conduct. Three-body abrasion tests were studied with silica sand of 212 µm particle size, 30 N load, 2.38 m s−1 sliding velocity and variable abrasive distances of 250 m, 500 m, 750 m and 1000 m. The dry sliding wear tests were performed using pin-on-disc (POD) wear experimental set-up with 60 N load, 3 m s−1 sliding velocity and variable sliding distances of 1000 m, 2000 m and 3000 m. The results followed the trend of BN1% > BN3% > BN5% composites in all mechanical properties. The carbon fabric reinforcement along with the BN-Ep matrix improved enormously all the mechanical properties except impact resistance. Further, it was exhibited that 1 wt% BN into CF/Ep prompts better mechanical properties with predominant damping capacity and thermal stability. Both the dry sand abrasive wear and POD test outcomes revealed that all BN-CF/Ep composites prompt predominant wear resistance. CF along with BN improves enormously the wear resistance with friction coefficient. Further, it was exhibited that 1 wt% BN into CF/Ep in both three-body abrasive and POD tests prompts better wear resistance. Generally speaking, it was presumed that BN-CF/Ep gracefully and successfully improved the mechanical, thermal and tribological properties and morphology of Ep for various mechanical, electrical components and load-bearing applications used in automotive and engineered applications.

中文翻译：

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碳纤维增强氮化硼填充环氧树脂复合材料的力学、热学和摩擦学性能研究

本研究的重点是填充氮化硼 (BN) 微填料粉末 (BN-CF/Ep) 的碳纤维环氧树脂 (CF/Ep) 复合材料的静态机械、热和摩擦学性能。所研究的机械性能是拉伸、弯曲、层间剪切强度和硬度。研究的热性能是动态力学​​和热重分析，分别通过动态力学分析仪和热重分析仪进行分析。通过差示扫描量热法、傅里叶变换红外光谱和扫描电子显微镜研究了 BN 填料在 Ep 和复合材料中的固化能力和分散性。摩擦学特性的重点是三体磨损和干滑动摩擦和磨损行为。使用 212 µm 粒径的硅砂、30 N 载荷、2.38 ms-1 滑动速度和 250 m、500 m、750 m 和 1000 m 的可变磨料距离对三体磨损试验进行了研究。干滑动磨损试验是使用销-盘 (POD) 磨损实验装置进行的，载荷为 60 N，滑动速度为 3 ms-1，滑动距离为 1000 m、2000 m 和 3000 m。结果在所有力学性能上都遵循BN1% > BN3% > BN5% 复合材料的趋势。碳纤维织物增强材料与 BN-Ep 基体一起极大地提高了除抗冲击性之外的所有机械性能。此外，研究表明，在 CF/Ep 中加入 1 wt% 的 BN 会产生更好的机械性能，并具有主要的阻尼能力和热稳定性。干砂磨料磨损和 POD 测试结果都表明，所有 BN-CF/Ep 复合材料都具有显着的耐磨性。CF 与 BN 一起极大地提高了耐磨性和摩擦系数。此外，在三体磨料和 POD 测试中，CF/Ep 中加入 1 wt% 的 BN 均显示出更好的耐磨性。一般而言，据推测，BN-CF/Ep 可以优雅并成功地改善 Ep 的机械、热和摩擦学性能和形态，用于汽车和工程应用中使用的各种机械、电气部件和承载应用。