固体冲压发动机环境下C/C-SiC喷管的烧蚀行为及重复性使用分析

王玲玲; 吴玉燕; 嵇阿琳; 闫联生; 崔红

doi:10.13801/j.cnki.fhclxb.20161018.004

固体冲压发动机环境下C/C-SiC喷管的烧蚀行为及重复性使用分析

1.
西安航天复合材料研究所, 西安 710025;
2.
西安航天动力技术研究所, 西安 710025

基金项目: 国防重大基础科研项目（c0320110006）

详细信息

作者简介:
王玲玲,硕士,高级工程师,研究方向为纤维增强陶瓷基复合材料E-mail:1985wllzpz@sina.com

中图分类号: TB332
计量
- 文章访问数: 1072
- HTML全文浏览量: 62
- PDF下载量: 1073
出版历程
- 收稿日期: 2016-08-10
- 修回日期: 2016-10-09
- 刊出日期: 2017-07-14

Ablation behavior and repetitive-use analysis of the C/C-SiC composites nozzle for solid propellant ramjet

1.
Xi'an Aerospace Composites Research Institute, Xi'an 710025, China;
2.
The Institute of Xi'an Aerospace Solid Propulsion Technology, Xi'an 710025, China

摘要

摘要: 为探索C/C-SiC喷管在固体冲压发动机工作环境下烧蚀行为及重复使用的可行性，对固冲发动机C/C-SiC复合材料喷管内层进行研究。研究结果表明：C/C-SiC复合材料喷管能够适应固体冲压发动机富氧、长时间的工作环境；C/C-SiC复合材料喷管收敛段的厚度有所下降，以热化学烧蚀和热机械侵蚀为主；喉部的厚度未发生明显变化，以热化学烧蚀为主；扩张段的厚度未发生变化，只有轻微的氧化。喷管内层的环向弯曲强度和轴向弯曲强度较试验前均有所降低，收敛段下降较多，而扩张段下降较少，但仍能满足重复使用要求；应对试验后喷管内层再进行分区化学气相沉积SiC涂层，提高喉部上游的抗氧化性能，提高其重复使用时的工作可靠性。
- 固冲发动机 /
- C/C-SiC /
- 喷管 /
- 烧蚀行为 /
- 重复使用
Abstract: In order to explore the ablation behavior and repetitive-use feasibility of the C/C-SiC nozzle in the solid propellant ramjet, the C/C-SiC composite nozzle was experimentally investigated. The results show that the C/C-SiC composite nozzle can work safely under the oxygen-rich combustion environment of the ramjet for long test duration. The thickness of convergent section of the nozzle reduces and the ablation mechanism are suggested as the thermochemical ablation and thermal-mechanical erosion. Thermochemical ablation is the dominated ablation mechanism for the nozzle throat with the thickness not reduced appreciably. No obvious oxidation and thickness reduction are observed in the divergent section of the nozzle. The circumferential and axial flexural strength of the convergent section descend obviously while the divergent section descend insignificantly after test, which can also satisfy for repetitive-use of the nozzle. Hence for the safety and reliability of the repetitive-use nozzle, chemical vapor deposition SiC coating in different positions of the after-test nozzle should be optimally designed for improving the anti-oxidation performance of the throat upstream.
- solid propellant ramjet /
- C/C-SiC /
- nozzle /
- ablation behavior /
- repetitive-use

HTML全文

参考文献(0)

施引文献(6)

期刊类型引用(4)

1.	曹邵文，周国庆，蔡琦琳，叶庆，庞昊强，吴玺. 太阳能电池综述：材料、政策驱动机制及应用前景. 复合材料学报. 2022(05): 1847-1858 . 本站查看
2.	刘玉梅，温馨，孟翔飞. 基于技术轨道跃迁的突破性技术预测方法及应用研究. 情报杂志. 2021(11): 39-45+15 . 百度学术
3.	王明序，许子傲，葛明桥，高强. 浅色导电纤维的发展及其最新应用. 丝绸. 2020(01): 37-42 . 百度学术
4.	刘璇，李必奎，李明，王鹏波. 铜基碳纳米管复合薄膜载流性能分析. 化工进展. 2018(12): 4782-4790 . 百度学术