Study on Bead Forming of Silica-Reinforced Composites Insulation

王天波; 周长省; 陈雄; 朱国强

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Study on Bead Forming of Silica-Reinforced Composites Insulation

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- Study on Bead Forming of Silica-Reinforced Composites Insulation
- 硅基绝热材料的玻璃成珠机理研究
- Vol. 32, Issue 2, Pages: 234-238(2011)
- 作者机构：
  
  南京理工大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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王天波, 周长省, 陈雄, et al. Study on Bead Forming of Silica-Reinforced Composites Insulation[J]. 2011, 32(2): 234-238.
DOI：

王天波, 周长省, 陈雄, et al. Study on Bead Forming of Silica-Reinforced Composites Insulation[J]. 2011, 32(2): 234-238. DOI：

摘要

采用冲压发动机地面连管试验系统对玻璃纤维酚醛材料进行了烧蚀试验.通过分析烧蚀材料的微观形貌以及燃气温度、压力和流速对烧蚀过程的影响

研究了玻璃珠的形成机理.研究发现:在补燃室不同位置

玻璃珠呈不同分布;玻璃成珠过程受燃气的压力、温度和速度的共同作用

燃气流速对玻璃珠的形成影响最大;从保护碳层、减少烧蚀的角度

玻璃珠的形成对材料烧蚀是不利的

应抑制液态层形成玻璃珠.

Abstract

An ablating test was conducted on glass fiber reinforced phenolic ablator by using the ramjet experiment system.The ablation morphologies of the phenolic ablator reinforced by fiberglass was observed

the forming of bead and the influence of gas-fired temperature

pressure and velocity of flow was analyzed.The results illustrated that the glass beads were unevenly distributed in the combustor.The glass bead was formed by the combined action of gas pressure

temperature and velocity

in which the velocity influenced the process most.In protecting char layer and reducing erosion

the glass bead formation from liquid layer is expected to be technically restrained.

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references

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