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Chemical analysis of primary combustion products of boron-based fuel-rich propellants

机译：基于硼富燃料推进剂初级燃烧产物的化学分析

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摘要

A facility was designed to collect the primary combustion products of boron-based fuel-rich propellants under different chamber pressures. The morphology and particle size of condensed-phase products were analyzed using a laser particle size analyzer and a scanning electron microscope (SEM), and chemical analysis of condensed-phase products was carried out by X-ray diffraction (XRD), laser Raman spectrometry, wet chemical analysis and elemental analysis. In addition, organics in condensed-phase products and gaseous products were analyzed by Fourier Transform Infrared Spectrometry (FTIR) and Gas Chromatography (GC), respectively. The results show that the condensed-phase products mainly consist of B, C, B4C (or B12C2), BN, Mg, MgO, MgAl2O4, Al, Al2O3, AlCl3, NH4[Mg(H2O)(6)]Cl-3, NH4Cl and Fe3O4; there are large amounts of boron oxide and boron carbide in the condensed-phase products, which indicates that elemental boron is highly active during the primary combustion process; a higher chamber pressure may be disadvantageous to the secondary combustion efficiency because more inactive boron carbide, graphite and h-BN (especially boron carbide) are produced.
机译：设施旨在根据不同的室压力收集基于硼富含燃料的推进剂的主要燃烧产物。使用激光粒度分析仪和扫描电子显微镜（SEM）分析冷凝相产物的形态和粒径，并通过X射线衍射（XRD），激光拉曼光谱法进行冷凝相产物的化学分析，湿化学分析和元素分析。此外，通过傅里叶变换红外光谱（FTIR）和气相色谱（GC）分析冷凝相产品和气态产物中的有机物。结果表明，冷凝相产物主要由B，C，B4C（或B12C2），BN，Mg，MgO，MgAl2O4，Al，Al 2 O 3，AlCl 3，NH 4 [Mg（H 2 O）（6）] Cl-3组成。 NH4CL和FE3O4;冷凝相产物中有大量的氧化硼和碳化硼，表明在初级燃烧过程中，元素硼在高度活性;更高的腔室压力可能是对二次燃烧效率的不利因素，因为产生更惰性的碳化硼，石墨和H-BN（尤其是碳化硼）。

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  • 来源
    《RSC Advances》 |2015年第123期|共11页
  • 作者

    Liu Lin-Lin; He Guo-Qiang; Wang Ying-Hong; Hu Song-Qi;

  • 作者单位

    Northwestern Polytech Univ Internal Flow &

    Thermal Struct Lab Sci &

    Technol Combust Xian 710072 Peoples R China;

    Northwestern Polytech Univ Internal Flow &

    Thermal Struct Lab Sci &

    Technol Combust Xian 710072 Peoples R China;

    Northwestern Polytech Univ Internal Flow &

    Thermal Struct Lab Sci &

    Technol Combust Xian 710072 Peoples R China;

    Northwestern Polytech Univ Internal Flow &

    Thermal Struct Lab Sci &

    Technol Combust Xian 710072 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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