Al-Si/Pb3O4 复合含能材料的燃烧特性
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[分类号] TQ560.7； TJ45
Combustion Characteristics of Al-Si/ Composite Energetic Materials
SHEN Lixiao，ZHU Shunguan，LI Yan， ZHANG Lin，YI Zhenxin，ZHU Chenguang Schoolof ChemistryandChemical Enginering，Nanjing Universityof Scienceand Technology（Jiangsu Nanjing，210094）
[ABSTRACT]Inorderto explore theeffectsof diffrent silicon（Si）contents onthecombustioncharacteristicsof Al（20 Si/Pb304 composite energetic materials，differential thermal analysis，ignition delay time，constant volume combustion and constant pressurecombustion werecarriedoutfordiferentcompositeenergeticmaterials.And theignitioncombustion proceses of the composite energetic materials were observedby non-contact optical methods.Byanalyzing the measured photoelectric signals and the burn-up images，it can be concluded that the Al-Si/Pl ）304 energetic material with w（Si）= （20 20% hasthe shortest ignition delay time and the fastest energy release rate，which can effectively enhance the energy release performanceon basisof maintaininga higher combustion temperature.While whenthemassfractionof Si increases to 30% ，the combustionrate of the energetic system slows down，showing areaction characteristic that is more inclined to that of the ignition powder.
[KEYWORDS]alloying modification；aloy thermite；ignition delay time；combustion characteristic
0 引言
金属燃料，尤其是铝Al，由于高体积能量密度而被广泛应用于含能材料领域。（剩余9992字）
