铅镉二元合金的共沉积添加剂  

Additives for electrodeposition of lead-cadmium alloy

作　　者：高云芳[1] 张鉴清[2] 张昭[2] 李祖光[1] 刘文涵[1] 

机构地区：[1]浙江工业大学化学与材料工程学院,杭州310014 [2]浙江大学化学系,杭州310027

出　　处：《中国有色金属学报》2003年第4期1051-1056,共6页The Chinese Journal of Nonferrous Metals

基　　金：浙江省科委"九五"重点资助项目(962101066)

摘　　要：采用线性电位扫描法对铅、镉二元合金共沉积中适用的添加剂进行了筛选,研究了不同种类添加剂对铅、镉电沉积的影响,并分析讨论了添加剂的作用。通过对合金镀层中铅、镉元素含量的测定和合金镀层对应的阳极溶出极化曲线的测试和分析,证明了合金镀层中的铅、镉是一种单金属混合物。研究结果表明,采用本合金电沉积技术可获得镀层性能良好的、不同镉含量的铅、镉二元合金镀层。The electrodeposition of leadcadmium alloy in aminosulfate bath was studied. The additives suitable for leadcadmium electrodeposition were chosen by the method of linear potential sweep electrochemical technique. The effect of additives on the electrodepositions of lead, cadmium and leadcadmium alloy were analyzed. The mechanism of the function of additives was also discussed. The phase composition in the PbCd alloy is detected by electrochemical anodic dissolution and it is confirmed that both lead and cadmium exist in the form of mechanically single metal phase (not solid solution ). It is concluded that this technique can be used for the preparation of leadcadmium alloy plating which contains different content of cadmium.

关 键 词：铅镉合金 共沉积 添加剂 电沉积 线性电位扫描法 

分 类 号：TQ153.2[化学工程—电化学工业]