| 用B4C陶瓷先驱体涂复碳纤维研究 |
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| 引用本文： | 李银奎,龙永福,李石保,张长瑞.用B4C陶瓷先驱体涂复碳纤维研究[J].国防科技大学学报,2000,22(2):33-36. |
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| 作者姓名： | 李银奎 龙永福 李石保 张长瑞 |
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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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| 摘 要： | 用溴苯和BF3乙醚为起始原料,合成出聚对亚苯基硼(PPB),高温裂解后得到含B4C 54.4%、B2O2 13.6%、自由碳32%的陶瓷.用溶液浸涂碳纤维(CF)并高温裂解后得到B4C涂层CF,与未涂层CF相比,B4C涂层CF抗热氧化性提高200°C.1800°C热压时B4C涂层CF较未涂层CF制得的CF/SiC复合材料的σb值提高10.5% ,KIC值提高19.4%,1850°C热压时相应的σb值提高31.6%,KIC提高5.8%.
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| 关 键 词： | 碳纤维 碳化硼 复合材料 |
| 收稿时间： | 8/5/1999 12:00:00 AM |
The Study of the Carbon Fiber Coated by Boron Carbide Ceramic Precursors |
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| LI Yinkui,LONG Yongfu,LI shibao and ZHANG changrui.The Study of the Carbon Fiber Coated by Boron Carbide Ceramic Precursors[J].Journal of National University of Defense Technology,2000,22(2):33-36. |
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| Authors: | LI Yinkui LONG Yongfu LI shibao and ZHANG changrui |
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| Affiliation: | 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: | |
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| Keywords: | Carbon fibre boron carbide matrix composites |
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