摘要
利用化学复合镀技术制备了Ni-P-碳纳米管(Ni-P-CNTs)和Ni-P-无机类富勒烯WS2[Ni-P-(IF-WS2)]复合镀层,考察了复合镀层的减摩抗磨性能.结果表明,Ni-P-CNTs和Ni-P-(IF-WS2)复合镀层的减摩抗磨性能优于化学镀Ni-P和Ni-P-石墨镀层,其原因在于Ni-P-CNTs化学复合镀层中的碳纳米管具有优异力学性能和同轴石墨纳米管结构,而Ni-P-(IF-WS2)化学复合镀层中的IF-WS2具有封闭层状类富勒烯球形结构,二者均具有优异的自润滑性能.
Ni-P-carbon nanotubes (Ni-P-CNTs) and Ni-P-inorganic fullerene-like WS2 (Ni-P-(IF-WS2)) composite coatings were prepared by electroless plating. The morphologies and microstructures of the CNTs and IF-WS2 nanoparticles were analyzed by means of scanning electron microscopy, transmittance electron microscopy and X-ray diffraction, while the phase structure and the composition of the resulting composite coatings were characterized by means of X-ray diffraction and elemental analysis. The friction and wear behaviors of the self-mated pairs of the resulting composite coatings were investigated on an MHK-500 ring-on-block friction and wear tester under the lubrication of a machine oil. It was found that the electroless Ni-P-CNTs and Ni-P-(IF-WS2) composite coatings recorded much better friction-reducing and antiwear properties than the Ni-P and Ni-P-graphite coatings. The significant improvement in the tribological properties of the Ni-P-CNTs was attributed to the excellent reinforcing effect and self-lubricity of the CNTs of coaxial graphitic nanotube structures. In a similar manner, the nested hollow inorganic fullerene-like structure of IF-WS2 nanoparticles and its rolling effect during the friction process accounted for the excellent tribological performance of Ni-P-(IF-WS2) composite coating.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2004年第3期216-219,共4页
Tribology
基金
国家自然科学基金资助项目(50171063
20003009
20171039)
中国科学院兰州化学物理研究所固体润滑国家重点实验室开放基金资助项目(0203)
浙江省自然科学基金资助项目(200053)
浙江省回国留学人员基金资助项目.
关键词
碳纳米管
无机类富勒烯WS2
化学复合镀层
摩擦磨损性能
Carbon nanotubes
Coatings
Electroless plating
Friction
Microstructure
Morphology
Nickel
Phosphorus
