| 引用本文: | 王建方,陈朝辉,刘维民,等.Cf/SiC复合材料制备过程对碳纤维的损伤.[J].国防科技大学学报,2002,24(6):27-30.[点击复制] |
| WANG Jianfang,CHEN Zhaohui,Liu Weimin,et al.Damage of Carbon Fiber during the Preparing of Cf/SiC Composites[J].Journal of National University of Defense Technology,2002,24(6):27-30[点击复制] |
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| Cf/SiC复合材料制备过程对碳纤维的损伤 |
| 王建方1, 陈朝辉1, 刘维民2, 郑文伟1, 姚志军1 |
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(1.国防科技大学 航天与材料工程学院，湖南 长沙 410073;2.中国科学院兰州化学物理研究所，甘肃 兰州 730000)
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| 摘要: |
| 对几种类型的碳纤维在Cf/SiC复合材料制备工艺中的先驱体中氧含量及高温热处理和PCS浸渍裂解处理过程中造成的损伤进行了考察，并探讨了损伤机制。结果表明，碳纤维石墨化程度和表面状态的差别会对其在复合材料制备过程中的损伤程度产生影响。石墨化程度高的M40JB碳纤维损伤程度较大；表面呈活性的JC1#碳纤维对外界条件的变化较为敏感；而石墨化程度不高而表面不活泼的JC2#碳纤维则损伤程度较小且较稳定。 |
| 关键词: Cf/SiC复合材料 碳纤维 损伤 |
| DOI： |
| 投稿日期：2002-06-15 |
| 基金项目:国家部委重点资助项目 |
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| Damage of Carbon Fiber during the Preparing of Cf/SiC Composites |
| WANG Jianfang1, CHEN Zhaohui1, Liu Weimin2, ZHENG Wenwei1, YAO Zhijun1 |
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(1.College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;2.Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000,China)
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| Abstract: |
| The damage of different carbon fibers was studied from high temperature, infiltration and pyrolysis of Polycarbosilane (PCS), and the oxygen in PCS. The result shows that the graphitizing extent and surface status influence the damage of carbon fiber greatly. The carbon fiber M40JB with a higher graphitizing extent was damaged more seriously; the carbon fiber JC1# with an active surface was sensitive to the variation of outside condition; however, the carbon fiber JC2#, which had a lower graphitizing extent and not active surface, was damaged less and was more stable. |
| Keywords: Cf/SiC composites carbon fibers damage |
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