Coagglomerated crystals of attractive nitramines in nitrocellulose gunpowder: A technological application

Abstract. Present study proven nitramines can qualitatively replace nitroglycerin in binary powders. Coagglomerated crystals (CACs) of RDX/BCHMX, inserted in this sense into gun powder, practically make double base powder type D063 charge and barrel length. During study, the samples also show that adding 10 % RDX to the propellant does not increase the powder specific energy over the nitrocellulose one. The intra-ballistic model [1, 2]] of Kusák et al. compared theoretical projectile velocity and powder gas pressure to ballistic bomb (closed vessel) measurements and calculated characteristics are compared. Pressure consolidation reduces projectile velocity by 10 m.s-1, where pressure and burnt charge percentage are similar. Thus, adding this much RDX does not improve propellant performance. Instead, ECL gun powders with more RDX or combustion moderators may perform better. To correct the powder mass RDX deficiency, 2% BCHMX was added. This very small addition of BCHMX decreased values needs to be compensated by heavier weighting leads to less gun powder mass burned at the shot than in samples. Powder flashes forward after burning. In military ammunition, this is nearly unacceptable. Coagglomerated processed nitramines RDX/BCHMX performed better. The propellant's 7.62x39 cartridge assembly gave the best projectile velocity and powder gas pressure calculations. Here, BCHMX improves RDX powder mass combustion at 2%. As demonstrated powder is stable at various temperatures, ballistics would be extremely beneficial if ammunition temperature is a factor comparing 7.62x39 mm cartridge theories to bullet assemblies.