Study on the In Situ Growth of Carbon Nanotubes for the Reinforcement of Cf/SiC Composite Fabricated by CVI+PIP Process
Cf/SiC composites were fabricated through in situ growth of carbon nanotubes (CNTs) on three-dimensional needle-punched carbon fabric via chemical vapor deposition and polymer impregnation and pyrolysis process.The mechanical and thermal properties of the composites were investigated.The flexural strength and fracture toughness were decreased due to the fiber volume fraction loss and much shorter pull-out length of fibers which was caused by the higher interfacial bonding strength between fiber and matrix after the growth of CNTs.Brittle fracture character of CNTs was observed due to the strong interfacial bonding strength between CNTs and matrix.The parallel thermal conductivity and perpendicular thermal conductivity were improved to 14.5% and 8.0% respectively.
Cf/SiC Composites Carbon nanotubes CVI+PIP
Jianbao Hu Shaoming Dong Xiangyu Zhang Zhen Wang Haijun Zhou Ping He Bin Wu
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute o State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute o
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
582-586
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）