糖精钠和硫酸铈对电解厚镍始极片性能的影响

发布时间：2018-01-19 08:01

本文关键词： 糖精钠硫酸铈始极片晶面取向晶粒　出处：《电镀与精饰》2016年10期 　论文类型：期刊论文

【摘要】：采用X-射线衍射和电化学测量法研究糖精钠和硫酸铈两种添加剂对电镀镍始极片的晶面取向、晶粒大小以及耐蚀性的影响。结果表明,在镀镍溶液中加入糖精钠或硫酸铈对镀层晶面取向、晶粒大小均有影响,晶面取向都呈现(200)择优,且晶粒都更细小。镀层的极化曲线显示糖精钠和硫酸铈都能使其自腐蚀电位更负,而对其腐蚀速率都有减缓作用,厚镍始极片作为电镀阳极时有利于电极的均匀溶解。
[Abstract]:The effects of sodium saccharin and cerium sulfate on the orientation, grain size and corrosion resistance of nickel electroplating initial plate were studied by means of X-ray diffraction and electrochemical measurement. The addition of sodium saccharin or cerium sulfate into nickel plating solution has an effect on the crystal orientation and grain size of the coating. The polarization curves of the coating show that both sodium saccharin and cerium sulfate can make the corrosion potential more negative and the corrosion rate can be slowed down. When the thick nickel electrode is used as the electroplating anode, it is advantageous to the uniform dissolution of the electrode.
【作者单位】：南昌航空大学材料科学与工程学院;
【分类号】：TQ153.12
【正文快照】： 引言镍是一种略带黄色的磁性过渡金属,在全球有色金属中,镍的消费量仅次于铜、铝、铅及锌,居有色金属第5位。因此,镍被视为重要战略物资,一直为各国所重视,其中电解厚镍主要应用于电镀、合金及冶炼等行业,作为电镀阳极时,要求其具有良好的溶解性能。电解厚镍是通过电解的方法

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