Ablation, mechanical and thermal conductivity properties of vapor grown carbon fiber/phenolic matrix composites
Ablation, mechanical and thermal conductivity properties of vapor grown carbon fiber/phenolic matrix composites
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DOI：
10.1016/s1359-835x(01)00092-6
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发表时间：
2002-02
影响因子：
8.7
通讯作者：
R. Patton;C. Pittman;Lichang Wang-;J. Hill;A. Day
中科院分区：
文献类型：
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作者：
R. Patton;C. Pittman;Lichang Wang-;J. Hill;A. Day
气相生长碳纤维（VGCF）（Pyrocarbon III™ Applied Sciences，Inc.）/酚醛树脂（SC-1008，Borden Chemical，Inc.）复合材料进行了评估，以确定使用这种材料在固体火箭发动机喷嘴的潜力。具有不同VGCF负载（30- 50%wt.）包括一个具有前人造丝碳纤维层片的样品，并在约1650°C下暴露于具有16.5MW/m2的热通量的等离子体炬20秒。观察到低侵蚀率和很少的焦炭形成，证实这些材料是有前途的火箭发动机喷嘴材料。当纤维负载量增加时，机械性能和烧蚀性能得到改善。VGCF复合材料具有较低的热导率（约0.56W/m-K），表明它们是良好的绝缘材料。如果VGCF复合材料中的纤维含量能够达到65%，那么烧蚀性能预计将与目前用于航天飞机可重复使用固体火箭发动机（RSRM）的复合材料相当或更好。
The ablation, mechanical and thermal properties of vapor grown carbon fiber (VGCF) (Pyrograf III™ Applied Sciences, Inc.)/phenolic resin (SC-1008, Borden Chemical, Inc.) composites were evaluated to determine the potential of using this material in solid rocket motor nozzles. Composite specimens with varying VGCF loadings (30–50% wt.) including one sample with ex-rayon carbon fiber plies were prepared and exposed to a plasma torch for 20s with a heat flux of 16.5MW/m2at approximately 1650°C. Low erosion rates and little char formation were observed, confirming that these materials were promising for rocket motor nozzle materials. When fiber loadings increased, mechanical properties and ablative properties improved. The VGCF composites had low thermal conductivities (approximately 0.56W/m-K) indicating they were good insulating materials. If a 65% fiber loading in VGCF composite could be achieved, then ablative properties are projected to be comparable to or better than the composite material currently used on the Space Shuttle Reusable Solid Rocket Motor (RSRM).