摘要
以聚碳硅烷(PCS)/二乙烯基苯(DVB)为先驱体,采用快速升温裂解制备了3D-BCf/SiC复合材料。结果证明:裂解升温速率的提高可以大大缩短制备周期,同时可以提高材料密度和形成较好的界面结合,从而提高材料的力学性能。制备得到的Cf/SiC材料室温弯曲强度达到556 7MPa。
Threedimensional braided carbon fiber (3D-B CF) reinforced SiC composites were fabricated via infiltration and pyrolysis of polycarbosilane(PCS)/divinylbenzene (DVB). The results show that increasing pyrolysis heating rates can reduce cycle time of manufacturing. At the same time, it can increase the density of Cf/SiC materials and improve the interface between carbon fiber and SiC matrix. The flexural strength of Cf/SiC materials reachs 556.7MPa.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2003年第2期30-33,共4页
Journal of National University of Defense Technology
基金
国家863基金资助项目
关键词
陶瓷基复合材料
升温速率
聚碳硅烷
弯曲强度
界面
ceramic matrix composites
pyrolysis heating rates
polycarbosilane
flexural strength
interface
