ISSN   1004-0595

CN  62-1095/O4

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秦卢梦, 卞达, 徐晓燕, 郭永信, 赵永武, 白林森. 石墨烯/碳纳米管增强氧化铝陶瓷涂层的制备及摩擦学性能的研究[J]. 摩擦学学报, 2017, 37(6): 798-805. DOI: 10.16078/j.tribology.2017.06.011
引用本文: 秦卢梦, 卞达, 徐晓燕, 郭永信, 赵永武, 白林森. 石墨烯/碳纳米管增强氧化铝陶瓷涂层的制备及摩擦学性能的研究[J]. 摩擦学学报, 2017, 37(6): 798-805. DOI: 10.16078/j.tribology.2017.06.011
QIN Lumeng, BIAN Da, XU Xiaoyan, GUO Yongxin, ZHAO Yongwu, BAI Linsen. Preparation and Tribological Properties of Graphene/Carbon Nanotube Reinforced Alumina Ceramic Coating[J]. TRIBOLOGY, 2017, 37(6): 798-805. DOI: 10.16078/j.tribology.2017.06.011
Citation: QIN Lumeng, BIAN Da, XU Xiaoyan, GUO Yongxin, ZHAO Yongwu, BAI Linsen. Preparation and Tribological Properties of Graphene/Carbon Nanotube Reinforced Alumina Ceramic Coating[J]. TRIBOLOGY, 2017, 37(6): 798-805. DOI: 10.16078/j.tribology.2017.06.011

石墨烯/碳纳米管增强氧化铝陶瓷涂层的制备及摩擦学性能的研究

Preparation and Tribological Properties of Graphene/Carbon Nanotube Reinforced Alumina Ceramic Coating

  • 摘要: 对碳纳米管进行混杂功能化处理,并与石墨烯,氧化铝按一定配比制成骨料,与胶黏剂混合充分,采用手工涂覆,低温固化的方法在304不锈钢表面制备复合陶瓷涂层. 对混杂碳纳米管分子组成进行了表征;对涂层的微观结构, 石墨烯和碳纳米管的分散性,涂层的显微硬度、断裂韧性、涂层与基体的结合强度及摩擦学性能进行了分析. 结果表明:混杂处理的碳纳米管表面既接枝了活性基团同时也包覆了表面活性剂,复合涂层结构致密,石墨烯和混杂处理的碳纳米管均匀分散在涂层中, 且复合涂层的硬度、断裂韧性、结合强度和耐磨减摩性能明显提高.

     

    Abstract: The carbon nanotube was treated using hybrid-functionalized processing. The aggregates were prepared with a certain proportion of the hybrid-treated carbon nanotube, graphene and alumina and then mixed comprehensively with adhesive agent. The composite ceramic coating was brushed on 304 stainless steel and cured under low temperature. The molecular composition of hybrid-functionalized carbon nanotube was characterized. Meanwhile, the microstructure of the coating and the dispersion of graphene and carbon nanotube were observed. The microhardness, fracture toughness, bonding strength of coating to the metallic substrate and tribological properties were also measured. The hybrid-functionalized carbon nanotube was grafted active groups and was wrapped with surfactant as well. The composite coating was compact with well-distributed graphene and carbon nanotube. Compared to monolithic alumina coating, the graphene/carbon nanotube reinforced alumina ceramic coating had better mechanical properties (hardness, fracture toughness and bonding strength) and tribological properties.

     

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