(1. 浙江工業(yè)大學(xué) 化學(xué)與材料工程學(xué)院， 杭州 310014；
2.浙江大學(xué) 化學(xué)系， 杭州 310027)
摘 要: 采用線性電位掃描法對(duì)鉛、 鎘二元合金共沉積中適用的添加劑進(jìn)行了篩選， 研究了不同種類(lèi)添加劑對(duì)鉛、 鎘電沉積的影響， 并分析討論了添加劑的作用。通過(guò)對(duì)合金鍍層中鉛、 鎘元素含量的測(cè)定和合金鍍層對(duì)應(yīng)的陽(yáng)極溶出極化曲線的測(cè)試和分析， 證明了合金鍍層中的鉛、 鎘是一種單金屬混合物。 研究結(jié)果表明， 采用本合金電沉積技術(shù)可獲得鍍層性能良好的、不同鎘含量的鉛、 鎘二元合金鍍層。
關(guān)鍵字: 鉛； 鎘； 合金電沉積； 添加劑
lead-cadmium alloy
LI Zu-guang1, LIU Wen-han1
（1. College of Chemistry and Materials Engineering,
Zhejiang University of Technology, Hangzhou 310014, China;
2. Department of Chemistry, Zhejiang University, Hangzhou 310027, China）
Abstract: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.
Key words: lead; cadmium; alloy electrodeposition; additive
