| CHEN Han-bin,ZHOU Jing,WU Hu-lin,CHEN Xiao-qin,CHEN Dong,LI Zhong-sheng,LI Li.Effect of Duty Cycle on ( Ni-Co) / nano-Al2O3Composite Coatings Prepared by High Frequency Pulse Electrodeposition[J],42(4):56-58,82 |
| Effect of Duty Cycle on ( Ni-Co) / nano-Al2O3Composite Coatings Prepared by High Frequency Pulse Electrodeposition |
| Received:April 05, 2013 Revised:May 10, 2013 |
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| DOI： |
| KeyWord:high frequency pulse electrodeposition duty cycle ( Ni-Co) / nano-Al2O3composite coating morphology microhardness |
| Author | Institution |
| CHEN Han-bin |
No. 59 Institute of China Ordnance Industry, Chongqing , China |
| ZHOU Jing |
Chongqing University of Technology,Chongqing , China |
| WU Hu-lin |
No. 59 Institute of China Ordnance Industry, Chongqing , China |
| CHEN Xiao-qin |
No. 59 Institute of China Ordnance Industry, Chongqing , China |
| CHEN Dong |
Military Delegation Office for Chengdu Region, Army Aviation Department of General Staff, Chengdu , China |
| LI Zhong-sheng |
No. 59 Institute of China Ordnance Industry, Chongqing , China |
| LI Li |
No. 59 Institute of China Ordnance Industry, Chongqing , China |
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| Abstract: |
| ( Ni-Co ) / nano-Al2O3composite coatings were prepared by high frequency pulse electrodeposition. The effect of duty cycle on deposition rate, composition, morphology and surface microhardness of the ( Ni-Co) / nano-Al2O3composite coatings were investigated. The results indicate that the deposition rate and the size of composite coatings grains increases, the surface morphology becomes coarse, the content of Co reduces, that of Ni increases, and that of nanometer Al2O3particles is not obvious with the increasing of the duty cycle from 0 . 3 to 0 . 5 . The mircohardness decreases due to the abatement of Co. |
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