Linear burning rates, r, and average rates-of-pressure-rise (ΔP/Δt)av, of guanidinium 1,5'-bis-1H-tetrazolate (G15B) / ammonium nitrate (AN) / copper (II) oxide (CuO) mixtures (G15B/AN/CuO 10 wt% mixture), whose percentage of CuO added to stoichiometric ratio G15B/AN mixture, and whose particle sizes of G15B and AN were different (10 wt%; and 75∼ 150μm and 75 ∼ 149μm, respectively) as compared to the past study (Date et al., Sci. Tech. Ener. Mat., 76, pp. 25-29 (2015)), were measured and comparisons were made with the past results for other fuel compound/AN/CuO mixtures, where the fuel compound studied was one of: guanidine derivative compound, i.e. guanidine nitrate (GN) or nitroguanidine (NQ); or an azo compound, i.e. azodicarbonamide (ADCA), and also the patented guanidine nitrate (GN) / strontium nitrate (SrN) / basic copper nitrate (BCN) mixture. As a result, G15B/AN/CuO 10 wt% mixture has shown the highestr among the mixtures that were studied. It was also shown that G15B/AN/CuO 10 wt% mixture burnt readily at and above an initial gauge pressure of 0.1 MPa, similar to all mixtures except GN/AN/CuO 1 wt% and 5 wt% mixtures that were compared in this study. As for (ΔP/Δt)av, G15B/AN/CuO 10 wt% mixture has shown the highest value among all the mixtures that were compared in this study. Meanwhile, (ΔP/Δt)avof all NQ/AN/CuO mixtures that were studied, ADCA/AN/CuO 10 wt% mixture and ADCA/AN/CuO 20 wt% mixture, together with G15B/AN/CuO 10 wt% mixture exceeded that of GN/SrN/BCN mixture.
ammonium nitrate, guanidine derivative compound, azodicabonamide, guanidinium 1,5'-bis-1H-tetrazolate, copper (II) oxide