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用直流碳弧法在阳极石墨棒中加入α－Fe2O3产生碳包Fe纳米晶，研究在复合石墨棒中加入不同的Fe2O3含量对碳包Fe纳米晶的形貌、结构特性及晶粒尺寸分布的影响，探讨碳包Fe纳米晶的形成原因及碳弧法中氦气压力和Fe2O3含量对复合石墨棒所产生的碳灰的C60／70产率的影响．结果表明：Fe2O3复合石墨棒所产生的碳灰含有α－Fe相、Fe3C相和石墨相，没有氧化物相．复合阳极棒中的Fe2O3含量决定了碳包Fe纳米晶的数量和晶粒直径分布，碳弧法中的He气压力仍是影响掺Fe2O3阳极棒所产生的碳灰的C60／70产率的主要因素，但对碳包Fe纳米晶的产率影响不大.掺Fe2O3阳极棒所产碳灰的C60／70产率与氦气压力的关系和纯石墨阳极棒的这一关系比较，存在着显著的差别．
Addition of α-Fe2O3 to the anode graphite rod by DC carbon arc to produce carbon-coated Fe nanocrystals was used to study the morphology, structural characteristics and grain size distribution of carbon-coated Fe nanocrystals by adding different Fe2O3 content in the composite graphite rod The effects of the formation of carbon nanofibers and the C60 / 70 yield of carbon ash produced by the composite graphite rod were investigated by the influence of helium pressure and Fe2O3 content in the carbon arc method. The results show that the carbon black produced by Fe2O3 composite graphite rod contains α-Fe phase, Fe3C phase and graphite phase without oxide phase. The content of Fe2O3 in the composite anode rod determines the number of carbon-encapsulated Fe nanocrystals and the distribution of crystallite diameter. The He gas pressure in the carbon arc method is still the main factor that affects the C60 / 70 yield of the soot produced by the Fe2O3-doped anode rod Factor, but had little effect on the yield of carbon-coated Fe nanocrystals.The relationship between the yield of C60 / 70 and the helium pressure of carbon black produced by Fe2O3 anode rod was significantly different from that of pure graphite anode rod The difference.