Carbon fiber reinforced SiC matrix composites (C/SiC) are considered one of the most potential alternative materials for high temperature alloy due to a series of advantages

such as the high temperature resistance

oxidation resistance

high specific strength and high specific modulus

etc. However

the ablation resistance property of C/SiC composites should be modified because the oxidation of carbon fiber and the volatilization of SiC matrix oxidation products under the ablation environments. At present

the methods for improving ablation resistance property of the C/SiC composites mainly focus on optimizing the carbon fiber preform structure and enhancing the density for composites

modifying the SiC matrix with ultra high temperature ceramics and fabricating anti-ablative coatings at the surface of C/SiC composites. Several domestic research work of modified ablation resistance C/SiC composites were reviewed and summarized

and the key problems faced for the preparation process of modified C/SiC composites were also proposed at the same time

which could provide a train of thought for the modified C/SiC composites research.