碘化钾在酸性镍磷镀液中的作用  

Behavior of KI in Acidic Electroless Plating Ni-P Solution

作　　者：聂书红[1] 蔡珣[1] 陈秋龙[1] 符长璞[2] 夏承钰[2] 

机构地区：[1]上海交通大学教育部高温材料和高温测试重点实验室,上海200030 [2]西安理工大学材料科学与工程学院,陕西西安710048

出　　处：《机械工程材料》2002年第5期6-8,29,共4页Materials For Mechanical Engineering

基　　金：军工配套项目

摘　　要：研究了碘化钾作为稳定剂对酸性化学镀镍磷合金溶液的稳定性、沉积速度、镀层含磷量、表面断面形貌及耐蚀性的影响 ,并与乙酸铅、硫脲、硫代硫酸钠、钼酸钠、五种稀土阳离子的作用进行了比较。结果表明 :碘化钾是一种很有效的稳定剂 ,并且在极宽的浓度范围内可使镀液稳定 ,镀速基本保持不变 ;而且含碘化钾的镀液对镍磷合金镀层的磷含量、镀层形貌及镀层耐蚀性影响不大。The effects of stablizer KI on the stability, deporsition rate of EN solution, phosphorus content, morphology and corrosion resistance of Ni P coating were investigated. The differences between Pb 2+ ,H 2NCSNH 2,S 2O 2- 3,MoO 2- 4,La 2+ ,Ce 4+ ,Pr 4+ ,Nd 3+ ,and Sm 3+ were contrasted.The results showed that KI was a highly efficient stablizer with constant deposition rate in a very wide content range.In addition, KI had a little influence on the stability, deposition rate of EN solution and the phosphorus content, morphology and corrosion resistence of Ni P coating. Developing composite stablizer containing KI would yield more ideal results.

关 键 词：化学镀 稳定剂 碘化钾 镀液性能 镀层性能 

分 类 号：TG142.45[一般工业技术—材料科学与工程]