| 先驱体转化法制备碳纤维增强碳化硅复合材料的研究 |
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| 引用本文： | 张长瑞,陈朝辉.先驱体转化法制备碳纤维增强碳化硅复合材料的研究[J].复合材料学报,1994,11(3):26-32. |
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| 作者姓名： | 张长瑞 陈朝辉 |
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| 作者单位： | 国防科技大学材料科学与应用化学系 |
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| 摘 要： | 本文采用有机硅先驱体聚碳硅烷转化成碳化硅制备连续碳纤维增强的碳化硅基复合材料。对其制备工艺,如碳纤维体积分数的控制、液相浸渍聚碳硅烷热解转化成碳化硅基体的致密化等进行了研究。结果表明,该工艺对制备连续纤维增强的陶瓷基复合材料是一种有效的方法,易于实现纤维和基体的成型、复合。致密化过程不损伤纤维。对其C/SiC复合材料的性能进行了表征,C纤维具有明显增韧碳化硅的效果,其断裂机制表现为韧性特征。
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| 关 键 词： | 聚碳硅烷 碳化硅 碳纤维 C/SiC复合材料 断裂韧性 |
| 收稿时间： | 1992-05-25 |
| 修稿时间： | 1993-07-15 |
STUDY ON FABRICATION OF C /SiC BY USING POLYCARBOSILANE AS PRECUSOR |
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| Zhang Changrui, Chen Zhaohui, Zhang Ling, Li Yongqing, Zhou Anchun, Zhou Xinggui.STUDY ON FABRICATION OF C /SiC BY USING POLYCARBOSILANE AS PRECUSOR[J].Acta Materiae Compositae Sinica,1994,11(3):26-32. |
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| Authors: | Zhang Changrui Chen Zhaohui Zhang Ling Li Yongqing Zhou Anchun Zhou Xinggui |
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| Affiliation: | Dept. of Materials Science and Applied Chemistry, NationaL University of Defense Technology, 410073 |
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| Abstract: | SiC matrix composite was fabricated by using polycarbosilane as precursor andcontinous carbon fibers as reinforcer,The process of the fabrication such as polycarbosilanemolecular weight,control of fiber volume fraction,liquid impregnation and pyrolysis ofpolycarbosilane was investigated.The results show that the process is suitable to fabricationceramic matrix composite reinfoced with continuous fibers. Properties of the C/SiC composites were studied and the mechanism of fracture is toughfracture. |
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| Keywords: | polycarbosilane silicon carbrid carbon fiber SiC matrix composite fracture toughness |
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