王森林
,
张倩
稀有金属材料与工程
借助扫描电镜、能谱分析、X射线衍射和振动样品磁强计研究了添加硫酸锰对Co-Fe-P合金沉积速率、结构和磁性能的影响.结果表明,少量的硫酸锰有利于Co-Fe-P镀层的沉积,但过量时会降低沉积速率.当镀液中添加的硫酸锰浓度小于0.02 mol-L-1时对镀层组成几乎没有影响,但随着其浓度进一步增大至0.04 mol·L-1,镀层组成发生显著的变化.硫酸锰对该镀层具有整平作用,而且可使镀层中颗粒细化;硫酸锰有利于镀层形成非晶或微晶态结构.硫酸锰还可以改善Co-Fe-P合金膜的磁性能.
关键词:
化学沉积
,
硫酸锰
,
Co-Fe-P
,
结构
,
磁性能
S.L. Wang
金属学报(英文版)
lectroless Co-Fe-P alloys were deposited from an alkaline bath, containing boric acid as a buffer agent and sodium citrate as a complexing agent. As a result, with the increase of pH of the bath, the iron content of the deposit increased, whereas the cobalt and phosphorus contents decreased. The structure of the deposit was investigated using X-ray diffraction (XRD) and transmission electron microscope (TEM). The deposit consisted of hexahedron phase Co, cubic phase Fe-Co, and amorphous phase (crystalline). The magnetic performances of the deposit were studied using vibrating sample magnetometer (VSM). The more the content of Fe and the less the content of P (the content of Co being less), the better the magnetic performances of the deposit. The Co-Fe-P deposit was suitable for use as soft magnetic material.
关键词:
electroless deposition
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null
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