[1]赵博儒,孙 志,赵健伟*,等.电镀银化学黑化后处理工艺研究[J].电镀与精饰,2019,(6):23-28.[doi:10.3969/j.issn.1001-3849.2019.06.005]
　ZHAO Boru,SUN Zhi,ZHAO Jianwei*,et al.Study on Chemical Blackening Post-Treatment for Electroplated Silver Layer[J].Plating & Finishing,2019,(6):23-28.[doi:10.3969/j.issn.1001-3849.2019.06.005]
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电镀银化学黑化后处理工艺研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2019年6
页码:
23-28
栏目:
出版日期:
2019-06-10

文章信息/Info

Title:
Study on Chemical Blackening Post-Treatment for Electroplated Silver Layer
作者:
赵博儒1; 孙 志2; 赵健伟2*; 陈智栋1*
1. 常州大学 材料科学与工程学院，江苏 常州 213000； 2. 嘉兴学院 材料与纺织工程学院，浙江 嘉兴314001
Author(s):
ZHAO Boru1;  SUN Zhi2;  ZHAO Jianwei2*;  CHEN Zhidong1*
1. Changzhou University, College of Materials Science and Engineering, Changzhou 213000, Chian;　2. Jiaxing University, College of Materials and Textile Engineering, Jiaxing 314001, China
关键词:
电镀银; 后处理; 化学黑化; 抗腐蚀性能
Keywords:
silver plating;  post-treatment;  chemical blackening;  corrosion resistance
DOI:
10.3969/j.issn.1001-3849.2019.06.005
文献标志码:
A
摘要:
本文研究了黑化时间、黑化温度和黑化剂浓度对银镀层黑化性能的影响，确定了一种电镀银化学黑化工艺。该工艺包括以下两步：第一步将银镀件于室温下在0.2 mmol/L的Na2S醇溶液中预黑化15 min，第二步在0.2 mol/L的C12H25SH溶液中黑化15 min。进一步利用扫描电子显微镜、X射线衍射仪、交流阻抗等方法对镀银黑化层进行了表征。结果表明，经黑化后银镀层表面形成一层均匀的、薄的钝化膜；硫化银粒子分布均匀，平均粒径约为65.9 nm，其自腐蚀电位为-130 mV，且黑化后仍保持一定的导电性。
Abstract:
The influence of soaking time, temperature and concentration of blackening agent on the property of the passivated silver coating layer was studied in this paper. The rationalized process and optimized working conditions were determined. The blacking treatment includes two sequential steps. Firstly, the silver plating layer is soaked in 0.2 mmol/L Na2S alcohol solution for 15 min at a room temperature. Then, the sample is transferred into 0.2 mol/L C12H25SH alcohol solution for another 15 min. The passivated silver-layer with uniform black color was studied intensively by using scanning electron microscopy (SEM), X-ray diffraction (XRD) and AC impedance (AC). The results showed that the thin passivated layer was homogeneous in the microscopic scale, composed of uniform silver sulfide particles with about 65.9 nm diameter. The self-corrosion potential of the sample was －130 mV and the sample still remained in good conductivity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2019-04-16；修回日期： 2019-05-16
通讯作者： 赵健伟，男，汉族，教授，博士生导师，研究方向：电化学，Email：jwzhao@mail.zjxu.edu.cn； 陈智栋：男，汉族，教授，博士生导师；研究方向：应用电化学,Email:zdchen@cczu.edu.cn
更新日期/Last Update: 2019-06-10