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利用透射电子显微镜（TEM）、原子力显微镜（AFM）研究了金属包膜的微观结构和表面形貌.结果表明,石墨在包膜内完成了结构的转变,但不是金刚石结构;在靠近金刚石的内层包膜内发现γ-（Fe,Ni）的（111）晶面与Fe3C的（100）晶面平行;包膜表面有锯齿状的AFM形貌,这与所对应的金刚石表面形貌相吻合.结合上述的平行关系和锯齿状形貌分析认为,Fe3C可能在金刚石生长过程中是一过渡相,γ-（Fe,Ni）吸引层状碳原子集团从Fe3C中脱溶,然后堆积在金刚石上.
The microstructure and surface morphology of the metal coatings were investigated by transmission electron microscopy (TEM) and atomic force microscopy (AFM). The results show that the transformation of graphite in the coating is completed, but not in the diamond structure. The (111) crystal plane of γ- (Fe, Ni) was found to be parallel to the (100) crystal plane of Fe3C in the envelope of the layer. The serrated AFM morphology of the envelope was in agreement with that of the corresponding diamond Combining with the above parallel relationship and jagged morphology analysis, it is concluded that Fe3C may be a transition phase during the growth of diamond, γ - (Fe, Ni) attracts the lamellar carbon group from the Fe3C to dissolve and then deposit on the diamond .