摘要
选取Ni-B化学镀基础液,测量不同工艺条件下的镀层沉积速率,进行了正交试验,研究了化学复合镀Ni-B-纳米TiO2的最佳工艺,并通过在HCl溶液中的浸泡试验和氧化增重的方法,对镀层的性能进行了考察。结果表明,在还原剂KBH40.5g/L、稳定剂Pb(NO3)22.5mg/L、纳米TiO2粉末1.0g/L、pH=13、温度为75℃条件下,采用超声波分散TiO2、机械搅拌方式进行施镀,可获得均匀、光亮、耐蚀性和高温抗氧化性均比Ni-B优异的Ni-B-纳米TiO2复合镀层。
The optimal techniology for chemical composite plating of Ni-B-nano-TiO2 was studied by using raw materials of Ni-B chemical plating. Under the conditions of reducer KBH4 0. 5g/L, stabilizer Pb（NO3）2 2. 5rng/L, nanometer TiO2 powder 1.0g/L and pH= 13, at 75℃, TiO2 being altrasonically dispersed and mechanically mixed, Ni-B-nano-TiO2 composite coating could be produce＆ The uniformity, brightness, corrosion resistance and hightemperature oxidation resistance of the Ni-B-nano-TiO2 composite coating were better than those of Ni-B.
出处
《腐蚀与防护》
CAS
北大核心
2006年第5期244-246,250,共4页
Corrosion & Protection
关键词
化学复合镀
纳米TIO2
工艺
Chemical composite plating
Nanometer TiO2
Technology
