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本文探讨了Fe含量、碳源及Ti、C颗粒大小对Ti－C－Fe体系自蔓延高温合成过程及产物结构特征的影响．结果表明：Fe含量增高，燃烧温度降低，产物颗粒变细，而燃烧波速度在10wt％Fe时出现极大值，反映了Fe液相的作用．石墨作碳源燃烧合成的TiC更接近于化学计量的TiC，且TiC颗粒较粗，燃烧温度、燃烧波速度均较高，反映了碳源结构差异对燃烧合成的影响．Ti、C颗粒越细，越有利燃烧反应合成．随着Fe含量增高，Ti－C－Fe体系燃烧方式由稳态变为振荡式及螺旋式燃烧．Fe含量＞60wt％；反应则不能自持．
In this paper, the effects of Fe content, carbon source, Ti and C particle size on the SHS process and product structure of Ti-C-Fe system were investigated. The results show that the content of Fe increases, the combustion temperature decreases, and the product particles become thinner. When the combustion wave velocity is 10wt% Fe, the maximum appears, which reflects the effect of Fe liquid phase. The TiC synthesized by graphite as a carbon source is more similar to the stoichiometric TiC. The TiC particles are coarser, and the combustion temperature and combustion wave velocity are higher, which reflects the influence of carbon source structure difference on combustion synthesis. Ti, C finer particles, the more favorable combustion reaction synthesis. With the increase of Fe content, the combustion mode of Ti-C-Fe system changed from steady state to oscillatory and helical combustion. Fe content> 60wt%; reaction can not self-sustaining.