Preparation and Combustion Performance of Propellant Containing Electromagnetic Sensitive Iron Wire

YANG Meng; ZHANG Xu; WANG Mingming; WANG Hongyuan; ZHANG Yingjia; DUAN Yanjuan; HUANG Zuohua; TANG Chenglong

doi:10.7652/xjtuxb202506005

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Preparation and Combustion Performance of Propellant Containing Electromagnetic Sensitive Iron Wire

Special Topic　Combustion Process | 更新时间：2025-08-26

- Preparation and Combustion Performance of Propellant Containing Electromagnetic Sensitive Iron Wire
- Journal of Xi’an Jiaotong University Vol. 59, Issue 6, Pages: 42-51(2025)
- 作者机构：
  
  1.西安交通大学能源与动力工程学院， 710049，西安
  2.内蒙合成化工研究所， 010010，呼和浩特
  3.西安航天动力技术研究所固体推进全国重点实验室， 710100，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202506005
  CLC： V19;TJ71
- Received：24 December 2024，
  
  Online First：10 February 2025，
  
  Published：10 June 2025
- 稿件说明：
移动端阅览
YANG Meng, ZHANG Xu, WANG Mingming, et al. Preparation and Combustion Performance of Propellant Containing Electromagnetic Sensitive Iron Wire[J]. Journal of Xi’an Jiaotong University, 2025, 59(6): 42-51.
DOI：

YANG Meng, ZHANG Xu, WANG Mingming, et al. Preparation and Combustion Performance of Propellant Containing Electromagnetic Sensitive Iron Wire[J]. Journal of Xi’an Jiaotong University, 2025, 59(6): 42-51. DOI： 10.7652/xjtuxb202506005.

摘要

针对固体推进剂燃烧智能调控难及燃烧机制不明的问题，将铁丝嵌入丁羟体系制备电磁敏感推进剂，获得燃烧特性数据并揭示燃烧调控机制。首先，筛选出电磁激励下升温较快的铁丝作为电磁敏感材料，采用化学平衡计算程序对嵌入铁丝的推进剂能量进行模拟；然后，利用可视化燃烧实验平台和材料试验机，开展燃烧及力学性能实验；最后，结合电磁场模拟，阐释了电磁激励下嵌入铁丝推进剂的燃烧速度调控机制。实验结果表明：随着嵌入铁丝直径的增加，推进剂固相成分增加，理论比冲下降，密度增大且燃烧速度先增加后降低；嵌入0.4 mm直径铁丝推进剂的最大抗拉强度为0.714 MPa，在电磁激励下的燃烧速度为6.10 mm/s，较无电磁激励下相同推进剂的燃烧速度增加2.65倍，较未嵌入铁丝的推进剂增加5.26倍；含铁丝推进剂在电磁激励下受到高温燃气、铝/含铁氧化物燃烧放热及电磁场的共同作用，温度升高更快，未燃推进剂预热区温度更高，导致其燃烧速度增加更快。该研究可为电磁敏感推进剂设计及燃烧调控提供实验支撑和理论依据。

Abstract

In response to the difficulty of achieving intelligent combustion control and unclear understanding of the mechanism for solid propellants

an electromagnetic sensitive propellant was prepared by embedding iron wire into a ding hydroxyl system. The combustion characteristic data was obtained. The combustion control mechanism was revealed. Firstly

iron wire was selected as electromagnetic sensitive material due to its fast-heating rate under electromagnetic excitation. The energy of propellant embedded with iron wire was simulated using chemical equilibrium with applications. Then

the combustion and mechanical performance experiments were conducted by using a visual combustion experimental platform and a material testing machine

separately. Finally

the burning rate control mechanism of the propellant containing iron wire under electromagnetic excitation was elucidated. Results showed that as the diameter of the embedded iron wire increased

the solid content of propellant increased

the theoretical specific impulse decreased

the density increased

and the burning rate first increased and then decreased. The maximum tensile strength of the propellant embedded with a 0.4 mm diameter iron wire was 0.714 MPa. The burning rate under electromagnetic excitation was 6.10 mm/s

which is 2.65 times higher than that of same propellant without electromagnetic excitation

and 5.26 times higher than that of the propellant without the embedded iron wire. Under electromagnetic excitation

the propellant containing iron wire was subjected to the combined effects of high-temperature combustion gas

heat release from combustion between Al and oxide with iron

and electromagnetic field

resulting in a faster temperature rise and a higher temperature in the preheating zone of unburned propellant

leading to a faster increase in burning rate. This study provides experimental support and theoretical basis for the design and combustion control of electromagnetic sensitive propellants.

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references

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