电刷镀镍/炭纳米管复合纳米镀层的结构与耐磨性能
Microstructures and Wear Behaviour of Ni/Carbon Nanotube Composite Nanocoatings by Electro-Brush Plating

冶银平周惠娣陈建敏

文摘	用含碳纳米管的快速镍电刷镀液制备了镍/碳纳米管复合纳米镀层。研究了镀液中碳纳米管含量对镀层平均晶粒尺寸、显微结构、力学性能及耐磨性能的影响。结果表明：镀液中碳纳米管含量对镍刷镀层的平均晶粒尺寸和微结构有显著的影响，当钹液中碳纳米管含量为4%(质量分数)时，镀层有约16nm的最小品粒尺寸；镀层的硬度和耐磨性与镀层的平均晶粒尺寸有非常好的对应关系；碳纳米管的弥散强化作用导致镀层晶粒细化和结构致密化，从而有效地改善了镀层的力学性能和耐磨性能。
其他语种文摘	Carbon nanotube was used as a preventing agent to prepare Ni/carbon nanotube composite nanocoatings. Effect of carbon nanotube content in electrolyte on average grain size, microstructure, microhardness and antiwear properties of the Ni/carbon nanotube composite nanocoatings was investigated. The results indicate that average grain size and microstructure of the Ni/carbon nanotube composite nanocoatings are mainly controlled by carbon nanotube content in electrolyte. The Ni/carbon nanotube composite nanocoating has an average grain size of about 16 nm as the carbon nanotube content in electrolyte is 4wt%. The wear behaviour and microhardness of the Ni/carbon nanotube composite nanocoatings is closely related to the average grain sizes and microstructures of the Ni/carbon nanotube composite nanocoatings, The excellent antiwear and mechanical properties of the Ni/carbon nanotube composite nanocoatings are attributed to the small grains and compact microstructures of the Ni/matrix composite nanocoatings caused by carbon nanotube used as a preventing agent.
来源	稀有金属材料与工程 ,2006,35(10):1643-1646 【核心库】
关键词	电刷镀 ; 镍/碳纳米管复合纳米镀层 ; 平均晶粒尺寸 ; 耐磨性
地址	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, 甘肃, 兰州, 730000
语种	中文
文献类型	研究性论文
ISSN	1002-185X
学科	金属学与金属工艺
基金	国家自然科学基金创新研究群体项目 ; 国家自然科学基金国家杰出青年科学基金
文献收藏号	CSCD:2570495