Novel phenolic impregnated 3-D Fine-woven pierced carbon fabric composites: Microstructure and ablation behavior

详细信息	查看全文 | 推荐本文 |

• 作者：Changqing Hong^a ; ^{hongcq@hit.edu.cn} ; Jiecai Han^a ; Xinghong Zhang^a ; Hui David^b ; Weijie Li^c ; Yaxi Chen^a ; Shanyi Du^a
• 关键词：A. Carbon fiber ; B. Thermal Properties ; B. Environmental degradation ; D. Electron Microscopy
• 刊名：Composites Part B ; Engineering
• 出版年：2012
• 期刊代码：18_13598368
• 类别：ms
• 出版时间：July, 2012
• 卷：43
• 期：5
• 页码：2389-2394
• 文件大小：1239 K

摘要

The processing, microstructure and ablative properties of novel phenolic impregnated 3-D Fine-woven pierced carbon fabric ablator (PICA) with different bulk density were investigated. The density of PICA material ranges from 0.352 to 0.701 g/cm³ that having uniform resin distribution within the fibrous substrate. An oxyacetylene torch was used to explore the ablative characteristics in terms of linear/mass ablation rate and microscopic pattern of ablation. Surface and in-depth temperatures during ablation were measured by using optical pyrometers and thermocouples. The experimental results showed that the linear ablation rate varied between 0.019 and 0.036 mm/s and the mass ablation rate increased from 0.045 to 0.061 g/s for the tested PICA composites. It suggests that the PICA composites with lower density may significantly contribute to improving the thermal insulation and ablative properties.