| 聚碳硅烷／二乙烯基苯快速升温裂解制备Cf/SiC复合材料 |
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| 引用本文： | 简科,陈朝辉,马青松,郑文伟.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. |
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| 作者姓名： | 简科 陈朝辉 马青松 郑文伟 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，， |
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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.
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| 关 键 词： | 陶瓷基复合材料 升温速率 聚碳硅烷 弯曲强度 界面 |
| 文章编号： | 1001-2486(2003)02-0030-04 |
| 收稿时间： | 2002/11/28 0:00:00 |
| 修稿时间： | 2002年11月28 |
Fabrication of Cf/SiC Composites by Pyrolysis Precursor PCS/DVB at High Heating Rates |
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| JIAN Ke,CHEN Zhaohui,MA Qingsong and Zheng Wenwei.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. |
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| Authors: | JIAN Ke CHEN Zhaohui MA Qingsong and Zheng Wenwei |
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| Institution: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;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. |
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| Keywords: | ceramic matrix composites pyrolysis heating rates polycarbosilane flexural strength interface |
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