双组元液体动力环境下3D C/SiC复合材料喷管烧蚀性能

Longteng Bai, Laifei Cheng, Xiaohui Yang, Jing Cao, Yi Wang

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

In order to explore the ablation characteristics of C/SiC ceramic composite nozzles in the working environment of liquid rocket engines, 3D C/SiC composite nozzle was prepared by the precursor impregnation pyrolysis(PIP) process, and the ablation test of the nozzle in various working conditions was carried out. The results show that 3D C/SiC composite nozzle can meet the requirements of anti-ablation performance of the liquid rocket engine under various working conditions. The wire ablation rate of nozzle throat is about 3.92×10-4 mm/s; after the hot test vehicle ablation test, a large amount of white matter SiO2 remains on the inlet cylindrical section, convergent section, throat section and expansion section outer surface of the nozzle, and the ablation pit appears in the throat; the ablation mechanisms of C/SiC composites under liquid rocket engine are mainly mechanical erosion ablation and oxidation ablation.

投稿的翻译标题Ablation performance of 3D C/SiC composite nozzles under double-component liquid power environment
源语言繁体中文
页(从-至)118-126
页数9
期刊Cailiao Gongcheng/Journal of Materials Engineering
50
2
DOI
出版状态已出版 - 20 2月 2022

关键词

  • 3D C/SiC composite
  • Ablation mecha-nism
  • Ablation performance
  • Liquid dynamic environment
  • Nozzle

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