稀土对Ni-P-Cr2O3化学复合镀工艺的影响

Effect of RE on Process of Ni-P-Cr_2O_3 Composite Plating

研究了Ni-P-Cr2O3化学复合镀的工艺及混合稀土氧化物对Ni-P-Cr2O3化学复合镀的影响。结果表明,Ni-P-Cr2O3化学复合镀的最佳工艺参数为:Cr2O3∶10g/L、温度:(86±2)℃、pH=4.7;适量的稀土氧化物能成倍增加Cr2O3粒子的沉积量,稀土能与Ni、P粒子及Cr2O3粒子共沉积,起微合金化作用,形成含RE的化学复合镀层。

The process of Ni-P-Cr2O3 electroless composite plating and the effects of RE on the process of Ni-P-Cr2O3 electroless composite plating were studied. The results show that the best process parameter of Ni-P-Cr2O3 electroless composite plating is Cr2O3：10g/L, （86±2）℃, pH=4.7. An amount of RE multiply increases the deposition of Cr2O3 particles. RE deposites with Ni, P particles and Cr2O3 particles together, while the micro-alloying occurs. The composite coating with RE forms.