The wear resistance and tribological characteristics of alumina/graphene layered and fiber-reinforced composites were investigated under dry sliding conditions at applied loads of 10 N and 50 N in the air. The experimental materials were prepared by a combination of electrospinning-calcination-chemical vapor deposition and spark plasma sintering. Graphene-coated Al₂O₃ microfibers were used to form layers in layered monolithic alumina/graphene-coated Al₂O₃ microfibers composite, and as reinforcements for the alumina matrix in the fiber-reinforced composite. The microstructure, deformation, and damage characteristics were studied. Both composites show a lower coefficient of friction in comparison to alumina with the lowest value of 0.42 for the fiber-reinforced composite measured at a load of 10 N. At the load of 10 N the composites exhibit very high wear resistance with values of wear rate 2.78 × 10⁻⁸mm³/(N·m) for the layered and 1.74 × 10⁻⁸mm³/(N·m) for the fiber-reinforced composite, in comparison to the wear rate of Al₂O₃ with a value of 5.35 × 10⁻⁶mm³/(N·m). The significant improvement in the wear resistance of the composites was associated with the improved mechanical properties and formation of a protective tribofilm on the wear tracks by the multilayered graphene present on the surface of Al₂O₃ microfibers and alumina debris, which provided the lubricating effect for the composites.

在空气中施加 10 N 和 50 N 载荷的干滑动条件下，研究了氧化铝/石墨烯层状和纤维增强复合材料的耐磨性和摩擦学特性。实验材料采用静电纺丝-煅烧-化学气相沉积和放电等离子烧结相结合的方法制备。石墨烯涂覆的 Al ₂ O ₃微纤维用于在层状单片氧化铝/石墨烯涂覆的 Al ₂ O _{3 中}形成层微纤维复合材料，并作为纤维增强复合材料中氧化铝基体的增强剂。研究了显微组织、变形和损伤特性。与氧化铝相比，两种复合材料的摩擦系数都较低，纤维增强复合材料在 10 N 载荷下测得的最低值为 0.42。在 10 N 载荷下，复合材料表现出非常高的耐磨性和磨损率值2.78×10 ^-8毫米³ /（N·M），分层和1.74×10 ^-8毫米³ /（N·M）的纤维增强复合材料，相比于Al的磨损率₂ ö ₃与5.35 × 10 ^-6 mm ^{3 的值}/(牛·米)。复合材料耐磨性的显着改善与机械性能的改善以及 Al ₂ O ₃微纤维和氧化铝碎屑表面存在的多层石墨烯在磨损轨迹上形成保护性摩擦膜有关，提供润滑作用对于复合材料。