Characterizations of nanocrystalline Co and Co/MWCNT coatings produced by different electrodeposition techniques
Characterizations of nanocrystalline Co and Co/MWCNT coatings produced by different electrodeposition techniques
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不同电沉积技术制备的纳米晶Co和Co/MWCNT涂层的特性
DOI：
10.1016/j.surfcoat.2012.11.079
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发表时间：
2013-02
影响因子：
5.4
通讯作者：
Ping Huang
中科院分区：
文献类型：
--
作者：
Fenghua Su;Cansen Liu;Jiali Guo;Ping Huang
Nanocrystalline cobalt (Co) and cobalt/multi-walled carbon nanotube (Co/MWCNT) coatings were synthesized by direct current (DC) and pulse reverse current (PRC) electrodeposition from aqueous bath containing cobalt sulfate and MWCNTs, etc. Effect of the functionalization of MWCNTs and electrodeposition techniques, i.e. DC and PRC, on the microstructure and properties of these coatings was evaluated. The results show that the incorporations of MWCNTs, particularly the functionalized MWCNTs, substantially improve the hardness and the resistance to wear and corrosion of the deposited coatings. PRC electrodeposition produces Co and Co/MWCNT coatings that are featured by small grain size, low surface roughness and more uniform distribution of MWCNTs in matrix, and consequently display the higher hardness and better resistance to wear and corrosion. The functionalization of MWCNTs favors the co-deposition of MWCNTs with Co ions, and then improves the hardness and the corrosion and wear resistance of the produced composite coatings. Among all samples, the composite coating incorporated with functionalized MWCNTs produced by PRC electrodeposition has the highest hardness around 1180kgf·mm−2and the best resistance to wear and corrosion. The differences in friction and wear behavior of these nanocrystalline Co and Co/MWCNT coatings as a function of treatment of MWCNTs or electrodeposition techniques are attributed to their different hardness, microstructures and the corresponding wear mechanisms.
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影响因子：
5.4
作者：
E. Pellicer;E. Gómez;E. Vallés
通讯作者：
E. Pellicer;E. Gómez;E. Vallés
影响因子：
4.6
作者：
Fenghua Su;P. Huang
通讯作者：
Fenghua Su;P. Huang
影响因子：
5.4
作者：
Borkar, Tushar;Harimkar, Sandip P.
通讯作者：
Harimkar, Sandip P.
影响因子：
2.9
作者：
Pavlatou, EA;Stroumbouli, M;Spyrellis, N
通讯作者：
Spyrellis, N
影响因子：
6.6
作者：
Dulal, S. M. S. I.;Yun, Hyeong Jin;Kim, Chang-Koo
通讯作者：
Kim, Chang-Koo