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采用电刷镀方法制备Ni-SiC刷镀层.利用扫描电镜(SEM)和X射线衍射仪(XRD)研究Ni-SiC刷镀层的表面形貌和高温氧化性能.结果表明,镀态Ni-SiC刷镀层颗粒的平均粒径约为0.5 μm.高温氧化实验表明,Ni-SiC刷镀层氧化增重量明显小于纯镍刷镀层的增重量,说明Ni-SiC刷镀层的抗高温氧化性能优良.Ni-SiC刷镀层表面存在大量细小的团状颗粒,且粒径分布较均匀,团状颗粒间无融合现象.其XRD图谱中的NiO相峰值较低,Ni相峰值较高.

参考文献

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