Ni-P-纳米SiO_2化学复合镀层的制备  

Preparation of Ni-P-Nano SiO_2 Electroless Composite Coating

作　　者：张丽伟[1] 宿辉[2] 

机构地区：[1]中国电子科技集团公司光电研究院,天津300000 [2]黑龙江工程学院材料与化学工程学院,黑龙江哈尔滨150050

出　　处：《沈阳大学学报（自然科学版）》2015年第2期104-107,共4页Journal of Shenyang University：Natural Science

摘　　要：采用化学镀方法在45钢表面制备Ni-P-纳米SiO2化学复合镀层,较系统地研究了化学镀液成分及施镀温度、pH值等参数对镀层形成的影响,通过扫描电子显微镜(SEM)和能量色散光谱(EDS)分析了Ni-P-纳米SiO2镀层的形貌和成分.实验结果表明:主盐、还原剂、络合剂、温度、pH值对Ni-P-纳米SiO2镀层的沉积速率有较大的影响,实验确定的最佳主盐质量浓度为25g·L-1、还原剂质量浓度为30g·L-1、施镀温度为86℃、pH值为4.5,所得镀层均匀、致密.Ni-P-nano SiO2 electroless composite coating was prepared on 45 steel by electroless method. The effects of plating solution formula, the temperature and pH value on the Ni-P-nano SiO2 coating were studied systematically. The microstructure and composition of Ni-P-nano SiOz coating were analyzed by scanning electron microscopy （SEM） and energy dispersive spectrometer （EDS）. The experimental results show that： the main salt, reducing agent, temperature, and pH value have great impact on deposition rate of the Ni-P-nano SiO2 coating. It was confirmed that the optimum concentration of the main salt was 25 g·L^-1 , the mass concentration of the reducing agent was 30 g·L^-1 , the temperature was 86℃, and the pH value was 4. 5. The prepared coating is uniform and compact.

关 键 词：纳米SIO2 化学复合镀 镀液 镍 磷 

分 类 号：TG174.44[金属学及工艺—金属表面处理]