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基于以下机理，即：在碳颗粒的周围形成一层富钛的复合层，钛原子扩散穿过该层与碳原子反应生成ＴｉＣ，形成的ＴｉＣ从溶液中析出且向外扩散，建立了Ａｌ－Ｔｉ－Ｃ体系中反应生成ＴｉＣ颗粒的动力学模型，获得了反应速度的表达式：ｄ（Ｖ）ｄｔ＝－πＤＶ（６ＶＮ２Ｃ）１３（１＋２ββ）ＮＡｌＭＡｌρＡｌ＋ＶＭＴｉρＴｉρＣＭＣ数值计算的结果表明，影响反应速度的因素主要有：体系温度、预制块中铝粉的含量，富钛层的厚度和碳颗粒的大小。减少铝粉含量、富钛层的厚度和碳颗粒的大小，以及升高体系的温度将加快反应的速度。
Based on the following mechanism, a layer of titanium-rich composite layer is formed around the carbon particles, the titanium atoms diffuse through the layer to react with carbon atoms to form TiC, the formed TiC is precipitated from the solution and diffuses outwards, and an Al- Ti-C system reaction kinetic model of TiC particles obtained reaction speed expression: d (V) dt = -πDV (6VN2C) 13 (1 + 2ββ) NAlMAlρAl + VMTiρTiρCMC numerical calculations show that the main factors that affect the reaction rate of the main There are: the temperature of the system, the content of aluminum powder in the preform, the thickness of the titanium-rich layer, and the size of the carbon particles. Reducing the aluminum content, the thickness of the titanium-rich layer and the size of the carbon particles, and increasing the temperature of the system will speed up the reaction.