表面活性剂对ZL102表面镍–磷–碳化硅化学复合镀的影响  

Effect of surfactant on electroless nickel–phosphorus– silicon carbide composite plating on surface of ZL102

作　　者：李亚敏[1] 王阿敏[1] 王丽波[1] 

机构地区：[1]兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

出　　处：《电镀与涂饰》2013年第7期28-31,共4页Electroplating & Finishing

基　　金：甘肃省自然科学基金(2007GS04799)

摘　　要：在酸性化学镀镍液中分别加入阴离子型、阳离子型和非离子型9种表面活性剂,以分散SiC微粒并在ZL102铝合金表面制备性能良好的Ni–P–SiC复合镀层。通过研究表面活性剂对镀液性能和复合镀层表面形貌、显微硬度、孔隙率及SiC复合量的影响,对表面活性剂进行筛选。结果表明,以60mg/L聚乙二醇作表面活性剂时,SiC微粒的分散效果最好,所得Ni–P–SiC复合镀层的孔隙率仅为0.5714个/cm2,显微硬度为729.76HV,镀层中的SiC颗粒细小、分布均匀,复合量达5.00%,综合性能最好。Nine types of anionic, cationic, and nonionicsurfactants were added to acid electroless nickel plating bathto disperse SiC particles and prepare Ni-P-SiC compositecoating with good properties on the surface of ZL102aluminum alloy. The optimal surfactant was selected throughstudying the effect of surfactant on the plating bathperformance and surface morphology, microhardness,porosity and SiC content of Ni-P-SiC composite coating.The results show that the dispersity of SiC particles is thebest when using 60 mg/L PEG-400. The obtained Ni-P-SiCcomposite coating features a porosity of 0.571 4 pore/cm2,microhardness 729.76 HV, and SiC content 5.00%. SiCparticles are fine and uniformly distributed in the Ni-P-SiCcomposite coating, which has the best comprehensiveperformance.

关 键 词：镍—磷合金 碳化硅 化学复合镀 表面活性剂 分散性 

分 类 号：TQ153.12[化学工程—电化学工业]