A review of the literature on the methods for activation of the combustion of metallic fuels, mainly boron-containing ones, as the promising components of composite propellants for ramjets is presented. Some methods and ideas were checked experimentally using a laboratory approach developed for comparing the metallic fuels (MF) of different origin. The approach implies the determination of the set of propellant combustion parameters, such as: burning rate, mass of condensed combustion products (CCP), MF combustion completeness, and heat release efficiency (HRE). The CCP particles are firstly quenched in an inert gas, and then sampled and subjected to particle size and chemical analyses. Seventeen propellants, containing different fuels, were studied at pressures of 1.2 and 2.5 МPа. The formulation factors that affect the burning rate and HRE were revealed. Recommendations on future directions of the studies on promising propellant formulations are given.

综述了金属燃料（主要是含硼燃料）燃烧方法的文献综述，金属燃料是冲压发动机复合推进剂的有前途的组分。使用为比较不同来源的金属燃料（MF）而开发的实验室方法对一些方法和想法进行了实验检查。该方法意味着确定一组推进剂燃烧参数，例如：燃烧速率、冷凝燃烧产物的质量 (CCP)、MF 燃烧完全性和热释放效率 (HRE)。CCP颗粒首先在惰性气体中淬火，然后取样并进行颗粒尺寸和化学分析。在 1.2 和 2.5 МPа 的压力下研究了 17 种含有不同燃料的推进剂。揭示了影响燃烧速率和HRE的配方因素。给出了有前景的推进剂配方研究的未来方向的建议。