纳米黑镍薄膜腐蚀行为的研究  

A Study of the Corrosion Behavior of Nanocrystalline Black Nickel Film

作　　者：陈映川[1] 宋利晓[2,3] 陈宇[2] 张昭[2] 杨仲年[4] 张鉴清[2] 

机构地区：[1]上海电机学院,上海200240 [2]浙江大学化学系,浙江杭州310027 [3]嘉兴市天器新材料科技有限公司,浙江桐乡314515 [4]滨州学院化学与化工系,山东滨州256603

出　　处：《电镀与环保》2011年第4期11-14,共4页Electroplating & Pollution Control

基　　金：国家自然科学基金(No.50771092;21073162)资助

摘　　要：采用直流电沉积技术在仅含有单一镍盐的改性Watts镀槽中获得了纳米晶黑镍薄膜,同时采用电化学阻抗谱(EIS)技术对其腐蚀电化学行为进行了详细的研究。结果表明:纳米晶黑镍薄膜的表面平整、致密、光亮,平均晶粒直径为51.4 nm,与黄铜基体间具有很好的结合力。在质量分数为3.5%的中性NaCl溶液中,纳米晶黑镍薄膜较传统的商用卫浴亮镍镀层具有更好的耐蚀能力。A nanocrystalline black nickel film was obtained from a modified Watts bath only containing nickel salts by DC electroplating method.Meanwhile,its corrosion behavior was investigated in detail by using electrochemical impedance spectroscopy technique.The results show that,the mean diameter of the obtained nanocrystalline black nickel film is 51.4 nm,of which the surface is much smooth,compact and bright,and it possesses much high cohesive force with brass substrate.The obtained black nickel film has much higher anti-corrosion resistance than the commercial white nickel coatings in neutral 3.5 wt.% NaCl solutions.

关 键 词：镁合金 阳极氧化 耐蚀性 

分 类 号：TQ153[化学工程—电化学工业]