本文简要地回顾了纤维/陶瓷复合材料的发展。介绍了CF/Si_3N_4复合材料反应烧结的制备工艺。采用本工艺,由于基体材料的多孔性和反应烧结的低温制度,较好地解决了纤维和基体间的物理及化学相容性。本试验制得的CF/Si_3N_4复合材料比反应烧结氮化硅陶瓷具有更高的韧性(K_(IC)值提高约1倍,α_K值提高约60％),而强度、硬度等力学性能并没有明显地下降。 This article briefly reviews the development of fiber / ceramic composites. The preparation technology of CF / Si_3N_4 composite reaction sintering is introduced. Adopting the process, the physical and chemical compatibility between the fiber and the matrix is ​​well solved due to the porosity of the matrix material and the low temperature system of the reaction and sintering. The CF / Si_3N_4 composites obtained in this experiment have higher toughness (K_ (IC) value about 1 times and α_K value about 60%) than the reactive sintered silicon nitride ceramics. However, the mechanical properties such as strength and hardness are not Decreased significantly.