中文摘要：

通过建立SiC纤维增强Ti基复合材料界面反应化学动力学模型，运用量子化学理论计算速率常数和活化能，揭示SiC纤维增强Ti基复合材料界面反应机理．研究显示，原子Ti，C，Si分别从Ti基体和SiC纤维分解反应的第一步骤为动力学控制步骤，其活化能远远大于界面反应产物生成的第二步骤的活化能，理论预测与实验结果吻合很好．

英文摘要：

The chemical kinetic model of SiC/Ti was built up. Rate constant and activity energy were cal- culated and interfacial reaction mechanism of SiC/Ti was studied. The result showes that the control step was that atom Ti,C,Si decomposed from Ti base and SiC fiber. The activity energy of the control step is far larger than that of interracial production formation. The theory forecast is in agreement with experi- ment.