Effects of fules on primary combustion of boron based fuel-rich propellant

The explosion heat (Q _v), the combustion temperature(T _f) 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 Q _v, T _f, η of propellant better than Al, and the magnalium decreases the Q _v, T _f, but increases η higher than Mg. Compared with moderately boron, the coarse or fine boron increases the Q _v, T _f 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.