Effects of Molding Pressure on the Microstructure and Mechanical Properties of 2D-Cf/SiC Composites by PIP Routes
Carbon fiber cloth reinforced silicon carbide (2D-Cf/SiC) composites were prepared through polycarbosilane(PCS)/divinylbenzene(DVB) pyrolysis with SiC as inactive filler.Effects of the molding pressure on the microstructure and mechanical properties of 2D-Cf/SiC composites were investigated.With increasing molding pressure from 0MPa to 3MPa,the fiber volume fraction of the composites was increased.As a result,the strengths of the composites were enhanced.But when the molding pressure exceeded 3MPa,SiC particles would damage the carbon fibers seriously.Therefore,although the fiber fraction of the composites was increased further,the flexural strengths of the composites were decreased.It was found that the composites fabricated with the molding pressure of 3 MPa exhibited highest flexural strength,reached 319.4 MPa.
2D-Cf/SiC composites Precursor infiltration pyrolysis Mechanical properties
Ke Jian Jing-Yu Liu Zhao-Hui Chen Qing-Song Ma
Key Lab of Advanced Ceramic Fibers & Composites,College of Aerospace & Materials Engineering,Nationa Department of bioengineering and Environmental Science,Changsha University,Changsha,P.R.China,410003
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1025-1027
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）