| 镍锰合金的电沉积行为 |
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| 引用本文： | 潘秉锁,牛明远,方小红.镍锰合金的电沉积行为[J].材料保护,2009,42(10). |
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| 作者姓名： | 潘秉锁 牛明远 方小红 |
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| 作者单位： | 1. 教育部岩土钻掘与防护工程研究中心,湖北,武汉,430074;中国地质大学工程学院,湖北,武汉,430074
2. 中国地质大学工程学院,湖北,武汉,430074 |
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| 摘 要： | 为了了解镍锰合金沉积的电极过程,采用线性扫描伏安法、单电位阶跃计时电流法和交流阻抗谱技术对镍锰合金的电沉积与镍的电沉积进行了对比性研究.结果表明:氯化锰的加入增大了阴极极化;镍和镍锰合金的电结晶都与三维连续成核理论相吻合,但加入氯化锰后电结晶成核速率常数增大,晶体向外生长速度和镍离子的扩散系数下降;电荷传递电阻增大,双电层电容下降.这些变化可能都与Mn(OH)2在阴极表面的吸附有关.
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| 关 键 词： | 电沉积 镍锰合金 成核机理 阴极过程 |
Electrodeposition Behavior of Nickel-Manganese Alloy |
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| PAN Bing-suo,NIU Ming-yuan,FANG Xiao-hone..Electrodeposition Behavior of Nickel-Manganese Alloy[J].Journal of Materials Protection,2009,42(10). |
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| Authors: | PAN Bing-suo NIU Ming-yuan FANG Xiao-hone |
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| Affiliation: | PAN Bing-suo1,2,NIU Ming-yuan2,FANG Xiao-hone2(1.Engineering Research Center of Rock-Soil Drilling & Excavation ,Protection,Ministry of Education,Wuhan 430074,China,2.Faculty of Engineering,China University of Geosciences,Wuhan430074,China). |
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| Abstract: | Linear sweep voltammetry,single-potential step chronoamperometry and alternating current impedance spectroscopy were employed to comparatively study the electrodeposition behavior of Ni-Mn alloy and pure nickel so as to understand the cathodic process of nickel electrodeposit.Results show that the addition of MnCl2 enhances the cathodic polarization.The electrocrystallization of both nickel and Ni-Mn alloy followed progressive three dimensional nucleation and growth mechanism.At the same time,the introducti... |
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| Keywords: | electrodeposition Ni-Mn alloy nucleation mechanism cathodic polarization |
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