In this work, we prepared the bamboo-like SiC nanowires reinforced SiC coating and studied the frictional wear properties under low applied load (6 N) and high applied load (30 N), aiming to enhance the wear resistance of the pure SiC coating. After introducing bamboo-like SiC nanowires, the fracture toughness and bonding strength of the composite coating were increased by 63.18% and 9.9 times, respectively, which meaned that high load was needed to cause the coating to break. Under the applied load of 6 N, the wear extents of both the pure SiC coating and the composite coating were relatively low, but the high hardness of the composite coating made the wear even lower. As the applied load increased to 30 N, the wear rate of the pure SiC coating was 0.217%, while that of the composite coating was just 0.043%. This should be ascribed to that the improved fracture toughness could hinder brittle fracture and grain extraction, and the bamboo-like SiC nanowires could absorb a great deal of fracture energy.

在这项工作中，我们制备了竹状SiC纳米线增强SiC涂层，并研究了在低施加载荷（6 N）和高施加载荷（30 N）下的摩擦磨损性能，旨在提高纯SiC涂层的耐磨性。引入竹状SiC纳米线后，复合涂层的断裂韧性和结合强度分别提高了63.18％和9.9倍，这意味着需要高载荷才能使涂层破裂。在6 N的外加载荷下，纯SiC涂层和复合涂层的磨损程度均较低，但复合涂层的高硬度使其磨损程度更低。当施加的载荷增加到30 N时，纯SiC涂层的磨损率为0.217％，而复合涂层的磨损率为0.043％。