| 引用本文: | 简科,陈朝辉,马青松,等.聚碳硅烷／二乙烯基苯快速升温裂解制备Cf/SiC复合材料.[J].国防科技大学学报,2003,25(2):30-33.[点击复制] |
| JIAN Ke,CHEN Zhaohui,MA Qingsong,et al.Fabrication of Cf/SiC Composites by Pyrolysis Precursor PCS/DVB at High Heating Rates[J].Journal of National University of Defense Technology,2003,25(2):30-33[点击复制] |
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| 聚碳硅烷／二乙烯基苯快速升温裂解制备Cf/SiC复合材料 |
| 简科, 陈朝辉, 马青松, 郑文伟 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 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-B Cf/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。 |
| 关键词: 陶瓷基复合材料 升温速率 聚碳硅烷 弯曲强度 界面 |
| DOI： |
| 投稿日期：2002-11-28 |
| 基金项目:国家863基金资助项目 |
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| Fabrication of Cf/SiC Composites by Pyrolysis Precursor PCS/DVB at High Heating Rates |
| JIAN Ke, CHEN Zhaohui, MA Qingsong, Zheng Wenwei |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Three-dimensional 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. |
| Keywords: ceramic matrix composites pyrolysis heating rates polycarbosilane flexural strength interface |
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