State;
Key;
Laboratory;
of;
Powder;
Metallurgy,;
Central;
South;
University,;
Changsha;
410083,;
China;
Powder;
Metallurgy;
Research;
Institute,;
Central;
South;
University,;
Changsha;
410083,;
China;
复合材料结构; 碳/碳化硅; 三维微结构; 热解碳; 碳化钽; 力学性能; 无纺布; 扫描电子显微镜;