添加剂对无氰氯金酸体系电沉积金层性能的影响  

Effect of additives on the properties of gold layer in cyanide-free chlorauric acid electrodeposition system

作　　者：郑利珊 姜琴 Zheng Lishan;Jiang Qin(School of Construction Engineering and Intelligent Construction,Zhengzhou Vocational Colloge of Information Technology,Zhengzhou 450046,China;School of Construction Engineering and Intelligent Construction,The Open University of Henan,Zhengzhou 450046,China)

机构地区：[1]郑州信息科技职业学院建筑工程与智能建造学院,河南郑州450046 [2]河南开放大学建筑工程与智能建造学院,河南郑州450046

出　　处：《电镀与精饰》2024年第11期23-29,共7页Plating & Finishing

基　　金：河南省科技攻关项目(242102230051);河南省高等学校重点科研项目(24B430022)。

摘　　要：以氯金酸无氰电沉积体系为基础,以添加剂作为单一变量进行电沉积金样品的制备和分析。添加剂对氯金酸体系电沉积金层的性能有明显影响,不同添加剂条件下电沉积金层的晶粒尺寸、晶面织构系数、维氏硬度值均存在差异。组合添加剂条件下样品性能表现最佳,电沉积金层宏观特征最好,光泽和平整度较好,样品晶粒尺寸为42.0 nm,呈(220)晶面的择优取向,其织构系数高达88.62%,维氏硬度值高达115.8 HV。Based on cyanide-free chlorauric acid electrodeposition system,the electrodeposition gold samples were prepared and analyzed with additive as a single variable.The additive has obvious effect on the properties of the gold layer.The grain size,texture coefficient of crystal plane and Vickers hardness of the gold layer are different under different additive conditions.Under the condition of combined additives,the sample has the best performance,the electrodeposited gold layer is dense and smooth,and has good glossiness.The grain size of the sample is 42.0 nm,and the sample has the preferred orientation of(220)crystal plane.The texture coefficient of(220)crystal plane is up to 88.62%.The Vickers hardness value of gold layer can reach up to 115.8 HV.

关 键 词：黄金 无氰工艺 电沉积 维氏硬度 

分 类 号：TQ153.3[化学工程—电化学工业]