镁合金Ni-Ce-P/纳米TiO_2化学复合镀工艺及性能  

Technology for Electroless Plating of Ni-Ce-P/Nano TiO_2 Composite Coating on Magnesium Alloy and Properties of the Coating

作　　者：马壮[1] 姜晓红[1] 时海芳[1] 李智超[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000

出　　处：《材料保护》2009年第5期24-27,共4页Materials Protection

基　　金：辽宁省教育厅科学技术研究项目(20060375)

摘　　要：为了改善镁合金表面的耐磨、耐蚀及抗菌性能,在Ni-Ce-P化学镀的基础上加入了纳米TiO2,在镁合金上获得了Ni-Ce-P/纳米TiO2化学复合镀层,对复合镀层组织进行了分析。最佳工艺参数:25.0 g/LNiSO4.6H2O,2.0 g/L TiO2,20.0 g/L柠檬酸,25.0 g/L NaH2PO2.H2O,10.0 g/L NH4HF2,0.1 g/LCe(NO3)3,0.2 g/L硫脲,2.0 g/L十二烷基硫酸钠,时间1 h,磁力搅拌。结果表明:Ni-Ce-P/纳米TiO2化学复合镀层使镁合金的耐磨性提高了1倍,耐蚀性优异,光催化性及抗菌性能良好。In order to improve the wear resistance, corrosion resistance, and antibacterial behavior of Mg alloys, Ni-Ce-P/nano TiO2 composite coating was prepared on the surface of the alloy by electroless plating, where TiO2 were introduced into Ni-Ce-P plating bath. The optimized plating pa-rameters were determined, while the properties of the composite coating were analyzed. Results show that the optimized bath was composed of 25.0 g/L NiSO4 ? 6H2O, 2.0 g/L TiO2, 20.0 g/Lcitric acid, 25.0g/L NaH2PO2 ? H2O, 10.0 g/L NH4HF2, and 0.1 g/L Ce( ISO3) 3, and the optimized plating time was 1 h. The resulting Ni-Ce-P/nano TiO2 composite coating had excellent wear resistance and corrosion resistance, and good photocatalytic and antibacterial properties.

关 键 词：化学镀 镁合金 Ni—Ce—P/纳米TiO2复合镀层 性能 

分 类 号：TQ153.2[化学工程—电化学工业]