| Preparation of Ni-CNT composite coatings on aluminum substrate and its friction and wear behavior |
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| 引用本文： | 涂江平,朱丽萍,陈卫祥,赵新兵,刘芙,张孝彬. Preparation of Ni-CNT composite coatings on aluminum substrate and its friction and wear behavior[J]. 中国有色金属学会会刊, 2004, 14(5): 880-884 |
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| 作者姓名： | 涂江平 朱丽萍 陈卫祥 赵新兵 刘芙 张孝彬 |
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| 作者单位： | [1]DepartmentofMaterialsScienceandEngineering,ZhejiangUniversity,Hangzhou310027,China [2]DepartmentofChemistry,ZhejiangUniversity,Hangzhou310027,China |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金，the Special Foundation of the Education Ministry of China for Young Teacher |
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| 摘 要： | Nickel-carbon nanotube(CNT) composite coatings with a Zn-Ni interlayer were prepared by electrodeposition technique on aluminum substrate. The effects of CNT concentration in plating bath on the volume fraction of CNTs in the deposits and the coating growth rate were investigated. The friction and wear behavior of the Ni-CNT composite coatings were examined using a pitt-on-disk wear tester under dry sliding eonditions at a sliding speed of 0.062 3 m/s and load range from 12 N to 150 N. Because of the reinforcement of CNTs in the composite coatings, at lower applied loads, the wear resistance was improved with increasing volume fraction of CNTs. Since cracking and peeling occur on the worn surface, the wear rates of composite coatings with high volume fraction of CNTs increase rapidly at higher applied loads. The friction coefficient of the composite coatings decreases with the increasing volume fraction of CNTs due to the reinforcement and self-lubrication of CNTs.
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| 关 键 词： | CNT 镍 电沉淀物 铝合金 涂层 化学镀工艺 |
Preparation of Ni-CNT composite coatings on aluminum substrate and its friction and wear behavior |
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| TU Jiang-ping,ZHU Li-ping,CHEN Wei-xiang,ZHAO Xin-bing,LIU Fu,ZHANG Xiao-bin. Preparation of Ni-CNT composite coatings on aluminum substrate and its friction and wear behavior[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(5): 880-884 |
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| Authors: | TU Jiang-ping ZHU Li-ping CHEN Wei-xiang ZHAO Xin-bing LIU Fu ZHANG Xiao-bin |
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| Affiliation: | TU Jiang-ping~1,ZHU Li-ping~1,CHEN Wei-xiang~2,ZHAO Xin-bing~1,LIU Fu~1,ZHANG Xiao-bin~1 |
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| Abstract: | Nickel-carbon nanotube(CNT) composite coatings with a Zn-Ni interlayer were prepared by electrodeposition technique on aluminum substrate. The effects of CNT concentration in plating bath on the volume fraction of CNTs in the deposits and the coating growth rate were investigated. The friction and wear behavior of the Ni-CNT composite coatings were examined using a pin-on-disk wear tester under dry sliding conditions at a sliding speed of 0. 062 3 m/s and load range from 12 N to 150 N. Because of the reinforcement of CNTs in the composite coatings, at lower applied loads, the wear resistance was improved with increasing volume fraction of CNTs. Since cracking and peeling occur on the worn surface, the wear rates of composite coatings with high volume fraction of CNTs increase rapidly at higher applied loads. The friction coefficient of the composite coatings decreases with the increasing volume fraction of CNTs due to the reinforcement and self-lubrication of CNTs. |
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| Keywords: | carbon nanotubes (CNTs) composite coating electrodeposition friction and wear |
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