采用粉体化学镀技术,以AgNO3取代常见的贵金属盐PdCl2作为活化剂、H2PO2-取代Sn2+作为还原剂,经一步前处理过程,在空心微珠表面沉积NiCoP合金.利用扫描电镜、能谱分析仪以及X射线衍射分别讨论了沉积层的形貌、成分和相结构.结果表明:NiCoP合金均匀沉积在空心微珠表面;结合X射线光电子能谱仪观察到的银元素化学态的变化过程,提出了这种改进工艺的一种可能机理.
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