Effect of the microstructure of ammonium nitrate granules on the detonability of composite propellants based on it

Resumo

This paper presents the result of a study of the chemical composition, physicotechnical properties, and structure of various types of granulated ammonium nitrate (high-density, porous, and aerated) made in Russia and abroad. It is shown that thermal treatment of high-density ammonium nitrate granules (Russian Standard (GOST) No. 2-2013) leads to changes in the crystal structure (porization) that increase the retention capacity with respect fuel oil. The detonation velocity of ammonium nitrate/fuel oil compositions based on aerated ammonium nitrate was measured.