Abstract This paper studies the influence of nozzle structure and process parameters on solid propellant 3D printing process, so as to better guide optimization improvement, realize continuous extrusion molding propellant. Four characteristic such diameter, shrinkage angle, temperature, wall slip coefficient are selected, these four speed pressure slurry in is discussed by using orthogonal test...

A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant. Numerical simulations were conducted to investigate the influence of content AP and relative position coarse on flame structure burning rate The results indicated that overall mass fraction has a significant effect gas-phase temperature rate,...

At this time, there is a pressing need to develop new technologies capable of detecting, identifying, and potentially neutralizing energetic materials, preferably from a stand-off distance. To address this need, an improved understanding of the mechanics of energetic materials, prior to detonation or defl agration, must be developed. In light of this, the present effort seeks to characterize th...

This paper has been utilizing the simultaneous ThermoGravimetric analysis and Differential Scanning Calorimetry (TG–DSC) to investigate the thermal decomposition of magnesium-sodium nitrate pyrotechnic composition based HTPB resin. The thermal behaviors of different samples with various fuel-oxidizer ratio contents were determined. Decomposition kinetic was investigated by evaluating the in...