Determination of the thermal kinetiks parameters of gun propellant

摘要

The thermal stability of two simple base gun propellants, SB1 manufactured in 2005 and SB2 manufactured in 2011 was evaluated by determination of thermal degradation energy (Ea) using different tests such as: auto-ignition. Firstly, the stability was tested using methyl-violet and Bergmann-Junk tests. Then, the auto-ignition technique was used to determine the thermal degradation energy using isothermal and non-isothermal mode. In the isothermal mode, the value of activation energy was investigated using Arrhenius equation whereas in the non-isothermal mode, Kissenger and Ozawa were used. All the tests performed show that the thermal degradation energy of SB1 is lower than that of SB2 which exhibit the existence of a good correlation between them.