| 任意可调Zn-Co合金镀层的电沉积 |
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| 引用本文： | 费敬银,梁国正,辛文利. 任意可调Zn-Co合金镀层的电沉积[J]. 中国化学工程学报, 2005, 13(2): 259-265 |
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| 作者姓名： | 费敬银 梁国正 辛文利 |
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| 作者单位： | DepartmentofChemicalEngineering,NorthwesternPoiytechnicalUniversity,Xi＇an710072,China |
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| 摘 要： | The effects of pulse parameters on the cobalt content, surface morphologies and grain size of Zn-Co alloy deposits were studied using a pulse plating technique with a square-wave current containing reverse pulse. Average current density and reverse anodic current density amongst the variables investigated have very strong effects on the cobalt content in the Zn-Co alloy deposits. Grain size, surface appearance and internal stress in the deposit were improved significantly by introducing the reverse current. Varieties of Zn-Co alloy compositionally modulated multilayer (CMM) coatings with large differences in cobalt contents for different sublayers were electrodeposited by designing corresponding waveforms using a computer-aided pulse plater and characterized in terms of surface morphologies. Cross-sectional morphologies of the Zn-Co alloy CMM coatings, examined using field emission gun scanning electron microscopy (FEGSEM), confirmed the layered structure.
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| 关 键 词： | 电沉积技术 锌-钴合金 涂层 防腐措施 镍 锌基合金 |
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Electrodeposition of Compositionally Modulated Zinc-cobalt Alloy Multilayer Coatings |
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| FEI Jingyin,LIANG Guozheng,XIN Wenli. Electrodeposition of Compositionally Modulated Zinc-cobalt Alloy Multilayer Coatings[J]. Chinese Journal of Chemical Engineering, 2005, 13(2): 259-265 |
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| Authors: | FEI Jingyin LIANG Guozheng XIN Wenli |
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| Affiliation: | Department of Chemical Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Department of Chemical Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Department of Chemical Engineering,Northwestern Polytechnical University,Xi'an 710072,China |
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| Abstract: | The effects of pulse parameters on the cobalt content, surface morphologies and grain size of Zn-Co alloy deposits were studied using a pulse plating technique with a square-wave current containing reverse pulse. Average current density and reverse anodic current density amongst the variables investigated have very strong effects on the cobalt content in the Zn-Co alloy deposits. Grain size, surface appearance and internal stress in the deposit were improved significantly by introducing the reverse current. Varieties of Zn-Co alloy compositionally modulated multilayer (CMM) coatings with large differences in cobalt contents for different sublayers were electrodeposited by designing corresponding waveforms using a computer-aided pulse plater and characterized in terms of surface morphologies. Cross-sectional morphologies of the Zn-Co alloy CMM coatings, examined using field emission gun scanning electron microscopy (FEGSEM), confirmed the layered structure. |
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| Keywords: | zinc-cobalt alloy electrodeposition composltionally modulated multilayer coating |
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