碳纤维增强SiBCN陶瓷基复合材料的制备及性能  

Fabrication and Properties of Carbon Fiber Reinforced SiBCN Matrix Composites

作　　者：王秀军[1,2] 张宗波[1,2] 曾凡[1] 李永明[1] 徐彩虹[1] 

机构地区：[1]中国科学院化学研究所,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《宇航材料工艺》2013年第2期47-50,共4页Aerospace Materials & Technology

摘　　要：以自制的聚硼硅氮烷(P-SiBCN)为基体聚合物利用前驱体浸渍裂解技术(PIP)制备了二维碳纤维增强SiBCN陶瓷基复合材料,并对其力学性能进行了初步研究。经8次浸渍-裂解,所得复合材料室温弯曲强度为334 MPa,800℃/氩气条件下弯曲强度367 MPa。该复合材料未经抗氧化防护处理情况下,800℃静态空气中氧化3 h后,强度保留率约为60%。Carbon fiber reinforced SiBCN-matrix composites were fabricated by polymer infiltration and pyrolysis route （PIP） with a lab-produced SiBCN precursor （P-SiBCN） as a matrix source. Their mechanical properties were investigated. The composite obtained from 8 PIP-cycles showed its flexure strengths of 334 MPa at room temperature, and in-situ flexure strength of 367 MPa at 800℃ in inert gas atmosphere. The composite retained its 60% strengths upon bending even at 800℃ in air.

关 键 词：聚硼硅氮烷 前驱体浸渍裂解技术 陶瓷基复合材料 

分 类 号：TQ174.758[化学工程—陶瓷工业]