Fe-Ni-S软磁薄膜的电沉积

酸性镀液中以硼酸为缓冲剂、柠檬酸三钠为配合剂，在紫铜箔上电沉积得到非晶Fe-Ni-S合金薄膜。 采用扫描电子显微镜和能谱分析技术(EDS)研究了镀液组成和沉积条件对镀层表面形貌和组成的影响。 结果表明，在镀液中加入2 g/L C7H5O3NS（糖精）和0.4 g/L 1,4-丁炔二醇可获得表面平整无裂缝和较小内应力的合金镀层；电流密度和镀液pH值对镀层组成影响较小，但施镀温度对镀层组成影响较大。 获得了理想的镀液组成和沉积条件，所得Fe73Ni9.5S17.5薄膜的X射线衍射表明其为非晶结构，在室温下具有较高的饱和磁化强度(Ms约为876.25 kA/m)和较低的矫顽力(Hc约为4.96 kA/m)，具有良好的软磁性能。 循环伏安曲线和阴极极化曲线均表明，镀液中CS(NH2)2会促进Fe-Ni-S共沉积。

Electrodeposition of Fe-Ni-S Soft Magnetic Film

Fe-Ni-S alloy film was prepared on red copper foil by electrodeposition from a acidic bath containing boric acid as a buffer agent and sodium citrate as a complexing agent.The effects of the bath composition,and the deposition parameters on the surface morphology and the composition of the alloy coating were studied by SEM and EDS.As a result,a smooth coating with no crack and little stress was obtained from the plating bath by adding 2 g/L saccharin and 0.4 g/L 1,4-butynediol.The cathodic current density a...