Science and Technology on Advanced Functional Composite Laboratory，Aerospace Research Institute of Materials &Processing Technology，Beijing 100076
采用针刺及细编穿刺结构分别引入热解碳和沥青碳的多孔C/C坯体，通过反应熔渗工艺（RMI）与熔融金属Zr反应制备了C/C-ZrC复合材料。研究了预制体结构和基体碳类型对C/C-ZrC复合材料微观结构及力学性能的影响。结果表明：材料熔渗后只由C，ZrC两相组成，孔隙率5%~10%，ZrC质量分数53%~63%。针刺结构的C/C坯体熔渗效果更好，制得的C/C-ZrC复合材料密度最高达到3.21 g/cm3；ZrC质量分数达到62.8%。热解碳基体在熔渗过程中对纤维保护作用更好，C/C-ZrC复合材料的弯曲强度达到148 MPa，压缩强度达到408 MPa。
The porous C/C body of pyrolytic carbon and asphaltic carbon was respectively introduced into the porous C/C body by needling and fine woven puncture structure. The C/C-ZrC composites were prepared by reacting melt infiltration （RMI） process with molten metal Zr. The effects of preform structure and matrix carbon type on the microstructure and mechanical properties of C/C-ZrC composites were studied. The results show that the material is only composed of C and ZrC phases after melting， the porosity is between 5% to 10%， and the mass fraction of ZrC is between 53% to 63%. The C/C body with needled structure has better melting effect， and the C/C-ZrC composite with the highest density reaches 3.21 g/cm3. The ZrC mass fraction reaches 62.8%. The pyrolysis carbon matrix has a better protective effect on the fiber during the melting and infiltration process， and the bending strength of C/C-ZrC composites reaches 148 MPa and the compression strength reaches 408 MPa.