燃料组分对含硼富燃料推进剂一次燃烧性能的影响

对含不同金属添加剂(镁、铝及镁铝合金)、不同硼粉粒度及硼粉含量的含硼富燃料推进剂分别进行了爆热(Qv)、燃烧温度(Tf)和成气率(η)测试,对比研究了金属组分对含硼富燃料推进剂燃烧性能的影响。结果表明:镁比铝能提高含硼富燃料推进剂的爆热值、燃烧温度和成气率;镁铝合金比镁更能降低含硼富燃料推进剂爆热及燃烧温度,且提高推进剂燃烧的成气率;当硼粉粒度较粗或较细时,含硼富燃料推进剂的爆热及燃烧温度均较高,而成气率较低,硼粉粒度适中时,推进剂的爆热值及燃烧温度均较低,而成气率较高;硼粉含量增大(氧化剂AP的含量减小),含硼富燃料推进剂的爆热、成气率均降低,而燃烧温度升高。

Research on the Effect of Metal on the Combustion Performance of the Boron Based Fuel-rich Propellant

The explosion heat(Qv),the combustion temperature(Tf) and the combustion gas generation rate(η) of boron based fuel-rich propellant contained Mg,Al and magnalium were tested to comparatively study the effects of the metal on its combustion.Results show that Mg improves Qv,Tf,η of propellant better than Al,and the magnalium decreases the Qv,Tf,but increases η higher than Mg.Compared with moderately boron,the coarse or fine boron increases the Qv,Tf higher,and decrease the η lower.The explosion heat,the gas generation rate decrease and the combustion temperature increases with the increasing of the boron content.