工艺参数对Ni-ZrO_2纳米微粒复合镀层性能的影响  

Effects of Process Parameters on the Performance of Ni-ZrO_2 Nano Composite Coatings prepared by Pulse Electroplating

作　　者：王琳[1] 路金林[1] 许为 姜秀明[1] 罗晓媛[1] 李英[1] 

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051 [2]中冶焦耐(大连)工程技术有限公司环工所,辽宁大连116002

出　　处：《电镀与精饰》2014年第5期32-36,共5页Plating & Finishing

基　　金：辽宁省大学生创新创业训练计划资助项目(201310146001);辽宁科技大学大学生创新创业训练计划资助项目(201310146088)

摘　　要：采用脉冲电源,在铜表面制备了复合镀层,研究了占空比、镀液中ZrO2纳米微粒添加量和脉冲频率对复合镀层的硬度、沉积速率和耐蚀性的影响。结果表明,随脉冲占空比的增加,镀层硬度、沉积速率和耐蚀性能均呈现先增大后减小的趋势;ZrO2纳米微粒的增加使镀层硬度增加,而沉积速率和耐蚀性能为先增大后减小;随脉冲频率的增加,镀层硬度、沉积速率及耐蚀性能均增加。最佳工艺参数应控制占空比为50%、ZrO2纳米微粒质量浓度9g/L、脉冲频率2000Hz。Ni-ZrO2 composite coatings were prepared by pulse electroplating on Cu substrate. Effects of duty cycle, ZrO2concentration in the electrolyte and pulse frequency on the hardness, deposition rate and corrosion resistance of the obtained composite coating were studied in this paper. The results showed that the hardness, deposition rate and corrosion resistance of composite coatings all increased firstly and then decreased with the increase of duty cycle. The coating hardness enhanced with the increase of ZrO2concentration while the deposition rate and corrosion resistance increased firstly and then decreased. All the performance showed a growth trend with the improving of pulse frequency. The optimized process parameters were as below ： duty cycle was 50%, ZrO2 concentration in electrolyte was 9 g/L and pulse fre- quency was 2 000 Hz.

关 键 词：NI-ZRO2 纳米微粒复合镀 脉冲电源 硬度 沉积速率 耐蚀性 

分 类 号：TQ153.2[化学工程—电化学工业]