含能材料2025，Vol.33Issue(11)：1255-1264,10.DOI:10.11943/CJEM2025166
硼铁复合燃料制备及其点火燃烧特性
Preparation,Ignition and Combustion Characteristics of Boron-iron Composite Fuel
摘要
Abstract
To investigate the effect of iron on the ignition and combustion behavior of boron particles in air,B@Fe and B/Fe com-posite fuels with different iron contents were prepared by chemical in-situ coating method and mechanical mixing method,re-spectively.The thermal oxidation properties and ignition combustion characteristics of samples in air were studied through thermogravimetry-differential scanning calorimetry(TG-DSC)analysis and laser ignition combustion experiments.The results show that B@Fe composite fuel exhibits better ignition and combustion performance in air atmosphere,compared with boron fu-el and B/Fe composite fuel.As the iron content increases from 0%to 9%,the ignition temperature and exothermic peak tempera-ture of B@Fe composite fuel decrease by 234.3 K and 321.6 K,respectively.When the iron content is≥6%,B@Fe composite fu-el also exhibits secondary oxidation behavior in air.Specifically,the total heat release during the thermal oxidation process of B@Fe-9 increases by 48.7%compared to boron powder.B@Fe composite fuel generates a large amount of gas during laser igni-tion,which promotes the dispersion of combustion products.The flame height rising rate of B@Fe composite fuel with 9%iron content is 4.7 times that of boron,and the ignition delay time is reduced by about 27.5%compared with boron.Comparing the thermal oxidation and ignition combustion processes of B,B@Fe and B/Fe,an ignition and combustion mechanism of B@Fe composite fuel is proposed.关键词
硼铁复合燃料/化学原位包覆法/机械混合/热氧化特性/点火燃烧特性Key words
Boron-iron composite fuel/chemical in-situ coating/mechanical mixing/thermal oxidation properties/ignition-combustion characteristics分类
武器工业引用本文复制引用
冯运超,屈影,黄纲顺,周熙文,马立坤,陈斌斌,夏智勋..硼铁复合燃料制备及其点火燃烧特性[J].含能材料,2025,33(11):1255-1264,10.基金项目
国防科技大学自主创新科学基金(24-ZZCX-JDZ-34) （24-ZZCX-JDZ-34）
国家自然科学基金(12272409,U21B2086) Independent Innovation Science Fund of National University of Defense Technology(No.24-ZZCX-JDZ-34) （12272409,U21B2086）
National Natural Science Foundation of China(Nos.12272409,U21B2086) （Nos.12272409,U21B2086）
