| 预制体孔隙结构对炭/炭复合材料ICVI制备工艺的影响 |
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| 引用本文： | 白瑞成,李贺军,付业伟,王兰英,卢锦花.预制体孔隙结构对炭/炭复合材料ICVI制备工艺的影响[J].炭素技术,2005,24(3):24-27. |
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| 作者姓名： | 白瑞成 李贺军 付业伟 王兰英 卢锦花 |
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| 作者单位： | 西北工业大学,超高温复合材料重点实验室,陕西,西安,710072 |
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| 摘 要： | 研究了预制体孔隙结构对ICVI工艺致密化过程及基体热解炭微观结构的影响。结果表明：2D针刺炭毡致密化速度高于炭布叠层预制体，1K炭布叠层预制体的致密化速度高于3K炭布叠层；在致密化过程中，热解炭均匀沉积在纤维表面，预制体AS／VR比值变化是导致热解炭微观结构发生改变的根本原因。
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| 关 键 词： | 炭／炭复合材料 ICVI 致密化 预制体 微观结构 |
| 文章编号： | 1001-3741(2005)03-0024-04 |
| 修稿时间： | 2004年10月27 |
A STUDY ON INFLUENCE OF PORE STRUCTURE OF PREFORMS ON ICVI PROCESSES OF CARBON/ CARBON COMPOSITES |
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| BAI Rui-cheng,LI He-jun,FU Ye-wei,WANG Lan-ying,LU Jin-hua.A STUDY ON INFLUENCE OF PORE STRUCTURE OF PREFORMS ON ICVI PROCESSES OF CARBON/ CARBON COMPOSITES[J].Carbon Techniques,2005,24(3):24-27. |
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| Authors: | BAI Rui-cheng LI He-jun FU Ye-wei WANG Lan-ying LU Jin-hua |
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| Abstract: | The influence of porestructure of performs on densification and the microstructures of pyrocarbon was investigated in the preparation of carbon/car bon composites by ICVI processes. The results show that the densification rate o f 2D spiked felt is higher than that of carbon cloth preforms; moreover 1 K carb on cloth preforms have higher densification rate than 3 K carbon cloth preforms. Pyrocarbon is uniformly deposited on the surface of fibers during densification and it is the changes of the ration AS/VR that leads to variation of pyrocarbon microstructures. |
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| Keywords: | C/C composites ICVI densification preform microstructure |
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