Performance optimization of ammonium dinitramide-based liquid propellant in pulsed laser ablation micro-propulsion using LIBS  

作　　者：Luyun JIANG Yutong CHEN Chentao MAO Jianhui HAN Anmin CHEN Jifei YE 蒋陆昀;陈雨桐;毛晨涛;韩建慧;陈安民;叶继飞(State Key Laboratory of Laser Propulsion&Application,Department of Aerospace Science and Technology,Space Engineering University,Beijing 101416,People’s Republic of China;Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,People’s Republic of China)

机构地区：[1]State Key Laboratory of Laser Propulsion&Application,Department of Aerospace Science and Technology,Space Engineering University,Beijing 101416,People’s Republic of China [2]Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,People’s Republic of China

出　　处：《Plasma Science and Technology》2025年第1期103-110,共8页等离子体科学和技术(英文版)

摘　　要：The efficacy of spacecraft propulsion systems significantly depends on the choice of propellant.This study utilized laser-induced breakdown spectroscopy(LIBS)to investigate the impact of different fuel types,fuel ratios,and laser energies on the plasma parameters of ammonium dinitramide(ADN)-based liquid propellants.Our findings suggest that 1-allyl-3-methylimidazolium dicyanamide(AMIMDCA)as a fuel choice led to higher plasma temperatures compared to methanol(CH_3OH)and hydroxyethyl hydrazine nitrate(HEHN)under the same experimental conditions.Optimization of the fuel ratio proved critical,and when the AMIMDCA ratio was 21wt.%the propellants could achieve the best propulsion performance.Increasing the incident laser energy not only enhanced the emission spectral intensity but also elevated the plasma temperature and electron density,thereby improving ablation efficiency.Notably,a combination of 100 mJ laser energy and 21wt.%AMIMDCA fuel produced a strong and stable plasma signal.This study contributes to our knowledge of pulsed laser micro-ablation in ADN-based liquid propellants,providing a useful optical diagnostic approach that can help refine the design and enhance the performance of spacecraft propulsion systems.

关 键 词：LIBS liquid propellant ADN 

分 类 号：V434[航空宇航科学与技术—航空宇航推进理论与工程]