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采用整体加热燃烧合成法（即热爆合成）制备了ＴｉＣ－Ａｌ复合体系，利用差热分析（ＤＴＡ）、Ｘ射线衍射分析（ＸＲＤ）和扫描电镜（ＳＥＭ）等手段研究了Ｔｉ－Ｃ－Ａｌ体系中升温速度及Ａｌ含量对ＴｉＣ反应合成过程的影响，分析了Ａｌ基体对ＴｉＣ粒子的形成机理．结果表明，在ＴｉＣ反应合成过程中，首先是Ｔｉ与Ａｌ反应形成Ｔｉ与Ａｌ的化合物，放出热量，随后促使Ｔｉ与Ｃ的放热反应发生，合成ＴｉＣ时放热产生的高温使Ｔｉ与Ａｌ的化合物分解，从而制得ＴｉＣ－Ａｌ复合体系；升温速度及Ａｌ含量只有超过一定值时，该体系才能在较低温度发生热爆反应；当Ａｌ的质量分数从１０％升至５０％时，ＴｉＣ的粒度从５．０μｍ阵至０．５μｍ．
TiC-Al composites were prepared by heating and combusting (Ti-C-Al) composite by means of thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) Temperature and Al content on the synthesis of TiC were investigated. The formation mechanism of TiC particles by Al matrix was analyzed. The results show that during the synthesis of TiC, the reaction between Ti and Al first forms the compound of Ti and Al, which releases the heat and then promotes the exothermic reaction of Ti and C. The high temperature generated by the exothermic synthesis of TiC makes Ti and Al TiC-Al composite system can be obtained by decomposing the compound; when the heating rate and Al content exceed a certain value, the system can undergo thermal explosion reaction at a lower temperature; when the mass fraction of Al is increased from 10% to 50%, TiC The particle size ranged from 5.0 μm to 0.5 μm.