The burning rate of propellants is affected by pressure and temperature. The relation between the burning rate and pressure has been well studied. However, the effect of the initial temperature on the burning rate has not been investigated quantitatively.
In this study, the burning rate of a phase stabilized ammonium nitrate containing potassium nitrate and 1H-tetrazole mixture was examined under conditions ranging from 1 to 10 MPa and 238 to 358 K, and an equation for the burning rate as a function of pressure and temperature was obtained.
In general, the burning rates predicted by the correlation equation were in good agreement with the observed values.
The temperature sensitivities were also predicted using the correlation equation and compared with the observed values and good agreement was found between the predicted and observed values.
燃焼速度に影響する因子には圧力と温度がある。 燃焼速度と圧力の関係は良く研究されているが，燃焼速度と温度の関係の定量的報告は少ないようである。 本実験では硝酸カリウムで相安定化した硝酸アンモニウムと１H-テトラゾールの混合物について，燃焼速度に及ぼす圧力と温度の関係を調べ，圧力と温度を変数とする燃焼速度式を得た。 得られた燃焼速度式から計算した燃焼速度は，実験値と広い範囲で良く一致した。 また，温度感度についても相関式から得た値と実験値から得られた値が良く一致した。
phase stabilized ammonium nitrate (PSAN), 1H-tetrazole, burning rate, initial temperature, temperature sensitivity