含Ce化学镀Co-Ni-B合金镀层功能特性的研究

借助磨损试验机和振动样品磁强计等研究了稀土金属Ce对化学镀Co-NI-B合金镀层磨损体积、磁化强度、矫顽力和磁导率的影响。结果表明：稀土Ce明显地提高了Co-Ni-B合金镀层的耐磨性，随镀液中稀土铈添加量增加，合金镀层的磨损量是先降后增，在镀液里Ce=0．8g／L时最小。稀土铈影响了化学镀Co-Ni-B合金镀层的电子结构和磁矩，与非晶态的Co-Ni-B合金镀层相比，微晶结构的Co-Ni-B-＆合金镀层具有较高的饱和磁化强度和磁导率，较低的剩余磁化强度和矫顽力，显示出了良好的软磁性能。

Study on Rare Earth Element Cerium on Function Characteristics of Electroless Co-Ni-B Alloy Coating

In virtue of abraser and vibrating sample magnetometer,the effect of rare earth element cerium on wear volume,magnetic intensity,coercitive force and magnetic permeability of electroless Co-Ni-B alloy coating are studied.The results show that the wear resistance of electroless Co-Ni-B alloy coating is remarkably increased because the rare earth cerium dissolved in alloy coating.As additive quantity of rare earth element cerium is increased in the plating bath,the wear volume of the alloy coating is first decreased and increased afterwards,and reaches its lowest value at Ce=0.8g/L in the plating bath.Rare earth element cerium has influence on the electron structure and magnetic moment of electroless Co-Ni-B alloy coating.Comparing with amorphous Co-Ni-B alloy,microcrystalline Co-Ni-B-Ce alloy presents much higher saturated magnetic intensity and magnetic permeability,and much lower remainder magnetic intensity and coercitive force.Therefore,this kind of alloy coating exhibits favorable soft magnetization.