Effects of Pyrolysis Temperatures on the Microstructure and Mechanical Properties of 2D-Cf/Si-O-C Composites
Two-dimensional carbon fiber cloth reinforced silicon oxycarbide (2D-Cf/Si-O-C) composites were fabricated with silicone resin (SR) as precursors,ethanol as solvent and SiC as inert fillers by precursor infiltration pyrolysis (PIP).Effects of the pyrolysis temperatures in the first cycle and the last but third cycle on the microstructure and mechanical properties of 2D-Cf/Si-O-C composites were investigated.The results showed that,when the pyrolysis temperature of the first cycle was 1200℃,2D-Cf/Si-O-C composites exhibited good mechanical properties,which can be attributed to the better fiber/matrix interfacial bonding.When the pyrolysis temperature of the last but third cycle was 1400℃,the mechanical properties of2D Cf/Si-O-C composites were further enhanced.The flexural strength and fracture toughness of the composites reached 263.9MPa and 12.8 MPa·m1/2.respectively.
Silicone resin 2D-Cf/Si-O-C composites Mechanical properties
Jing-yu Liu Ke Jian Zhao-hui Chen Qing-song Ma Song Wang
Department of bioengineering and Environmental Science,Changsha University,ChangSha 410003,P.R.China Key Lab of Advanced Ceramic Fibers & Composites,College of Aerospace & Materials Engineering,Nationa
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
1022-1024
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）