化学沉积Ni-Zn-P合金及其冲蚀特性  

Electroless plating Ni-Zn-P alloy and its erosion properties

作　　者：朱绍峰[1,2] 吴玉程[1] 黄新民[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009 [2]安徽建筑工业学院材料与化学工程学院,安徽合肥230022

出　　处：《功能材料》2010年第7期1181-1185,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20571022)

摘　　要：研究了镀液中硫酸锌、次亚磷酸钠、pH值及镀液温度对化学沉积Ni-Zn-P合金沉积速度、镀层成分和镀层表面形貌的影响。用SEM、EDS和XRD对沉积层进行表征。确定最佳工艺条件为:硫酸镍25g/L,次亚磷酸钠30g/L,硫酸锌8g/L,柠檬酸钠60g/L,硫酸铵25g/L,乳酸30ml/L,镀液温度为(85±1)℃,镀液pH值为9.0。X射线衍射分析表明,镀态下化学沉积Ni-Zn-P合金由非晶态的相和镍的固溶体存在。研究了沉积层在0.05mol/L盐酸流动介质中的冲蚀行为,化学沉积Ni-Zn-P合金层质量损失随介质流动速度提高,冲击角度的减小而增加。In this paper,the effect of ZnSO4·7H2O,NaH2PO2·H2O,pH of the bath,temperature on deposition rate and deposition composition were investigated.The compositions were characterized by scanning electron microscopy,energy dispersive analysis and X-ray diffractometer.The best processing conditions are：25g/L NiSO4·6H2O,8g/L ZnSO4·7H2O,60g/L C6H5Na3O7·2H2O,25g/L（NH4）2SO4·H2O,30ml/L lactic acid,pH=9.0,and the bath temperature is （85±1）℃.The electroless plating Ni-Zn-P alloy is composed with amorphous and solid solution of nickel.The erosion behavior was tested with 0.05mmol/L HCl.The results show that,mass loss of the deposition is increasing with corrosive medium flow rate increasing and erosion angle decreasing.

关 键 词：化学镀 镍锌磷合金 冲蚀 

分 类 号：TB332[一般工业技术—材料科学与工程]