Abstract
Double-base and composite solid propellants with contain Al and/or Zr powders were burned in a pressurized burning apparatus and a bomb calorie meter. The components and geometric characteristics of combustion products were investigated by x-ray diffraction (XRD), energy dispersion x-ray (EDX) and scanning electron microscope (SEM). It was recognized that both a variety of solid propellants and the burning pressure had no influence on XRD results of combustion products. A tetragonal ZrO2 was detected from combustion products of solid propellants with Al and Zr powders by XRD. According to the EDX analysis of combustion products and their grinded samples, there was a possibility that the combustion products were gradient materials of Al and Zr compounds. Every combustion product had a spherical shape, irrespectively of both the components of the solid propellant and the burning pressure. The size of the combustion products decreased with increasing burning pressure.
