宇航材料工艺2012，Vol.42Issue(6)：29-33,5.
C/C-Cu复合材料的烧蚀性能
Ablation Property of C/C-Cu Composites
孙乐 1李红 1李爱军 1任慕苏 1孙晋良1
作者信息
- 1. 上海大学复合材料研究中心,上海200072
- 折叠
摘要
Abstract
Using carbonzed needled PAN-based pre-oxidized fiber felts as preform,the porous C/C frameworks with different densities were fabricated by chemical vapor infiltration method ( CVI) and resin impregnation (IR) methods, and then C/C - Cu composites were manufactured by gas pressure infiltration technique. In the present work, the ablative properties of C/C-Cu composites were tested by H2-O2 ablation method. The experimental results indicate that the linear ablation rate and the mass ablation rate of C/C-Cu composite with the C/C perform at 0. 99 g/ cm3 are lower than C/C composite (p=1.9 g/cm3) , exhibiting excellent ablation-resistant performance. During the ablation test, melting copper matrix depleted a large amount of heat, droped the surface temperature and improved the anti-ablation performance of C/C-Cu. For C/C-Cu composites, the ablation mechanisms are thermal-oxidation and mechanical erosion.关键词
C/C-Cu复合材料/烧蚀性能/热解碳/气体压力浸渗Key words
C/C-Cu composites/ Ablation performance/ Pyrocarbon/ Gas pressure infiltration引用本文复制引用
孙乐,李红,李爱军,任慕苏,孙晋良..C/C-Cu复合材料的烧蚀性能[J].宇航材料工艺,2012,42(6):29-33,5.
