摘要
[目的]研究不同脉冲参数对氨基磺酸盐体系电镀镍的影响。[方法]通过扫描电镜(SEM)和塔菲尔曲线测试,考察了平均电流密度、脉冲占空比、频率和施镀时间对Ni镀层表面形貌和耐蚀性的影响。[结果]电镀镍的较优脉冲参数为:平均电流密度0.75 A/dm^(2),占空比80%,频率1000 Hz。在较优条件下电镀8 min所得Ni镀层结晶细致,表面平整均匀,耐蚀性良好。[结论]本研究的结果可为解决Ni镀层均匀性差、性能不稳定等问题提供依据,为后续进一步镀金打下基础。
[Introduction]The effects of different pulse parameters on nickel electroplating in an sulfamate bath need to be studied.[Method]The effects of average current density,duty cycle,pulse frequency,and plating time on the surface morphology and corrosion resistance of Ni coating were studied by scanning electron microscopy(SEM)and Tafel curve measurement.[Result]The pulse parameters were optimized as follows:average current density 0.75 A/dm^(2),duty cycle 80%,and pulse frequency 1000 Hz.The Ni coating obtained by electroplating under the optimized conditions for 8 minutes featured a smooth and uniform surface with fine and compact grains,and good corrosion resistance.[Conclusion]The results of this study can provide experimental data to address the issues such as poor uniformity and unstable performance of Ni coating,laying foundation for further gold electroplating.
作者
欧阳欣宇
丁耀
沈岳军
宋方祥
罗华江
孙雪松
OUYANG Xinyu;DING Yao;SHEN Yuejun;SONG Fangxiang;LUO Huajiang;SUN Xuesong(College of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China;Guizhou Space Appliance Stock Co Ltd,Guiyang 550029,China;College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China)
出处
《电镀与涂饰》
CAS
北大核心
2024年第12期25-31,共7页
Electroplating & Finishing
基金
脉冲镀金工艺参数优化和机理研究及应用评估(K23-0114-035)。
关键词
镍
脉冲电镀
氨基磺酸盐
表面形貌
耐蚀性
nickel
pulsed electroplating
sulfamate
surface morphology
corrosion resistance
