抄録
The combustion process of porous spherical titanium particles with diameters in the range of 100-400㎛ was studied in free fall in air (as single particles), and in composite propellant (as metallic fuel). The particles burning times in air at atmospheric pressure were determined by video recording. Twelve composite propellant containing 60% AP of sieve fraction 180-250㎛, 20% energetic binder, and 20% titanium powder of various size and type (with porous particles and with rolled in ball mill pseudospherical particles) were studied. The propellant burning rate and the agglomeration parameters were determined at pressures of 0.35 MPa in nitrogen and at 0.1 MPa in air. It was established that the smallest agglomerates are formed when titanium powders of the smallest dimensions are used.
