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研究了金属与氧化剂混合的高能物质的燃速特性。试制了镁/聚四氟乙烯高能混合物,并以它们的粒径与形状为变量进行了试验研究。根据燃速测量结果证明,这种混合物的燃烧特性与过去的固体推进剂有很大不同。燃速随镁和聚四氟乙烯的粒径及混合比有很大变化。最大燃速在燃料浓的区域。高能混合物的燃速与单位体积内镁颗粒的表面面积成正比增加,镁颗粒表面附近的反应决定燃速。
The burning rate characteristics of high energy materials mixed with metal and oxidant were studied. The high-energy magnesium / polytetrafluoroethylene (PTFE) blends were tried and tested with their particle size and shape as variables. Burning rate measurements show that the combustion characteristics of this mixture are very different from those of conventional solid propellants. Burning speed varies greatly with particle size and mixing ratio of magnesium and polytetrafluoroethylene. The maximum burning rate is in the fuel rich area. The burning rate of the high energy mixture increases in direct proportion to the surface area of the magnesium particles per unit volume, and the reaction near the surface of the magnesium particles determines the burning rate.