Research Of The Detonation Temperature And The Internal Structure Of Reaction Zone Of High Explosives

The main works of this paper are about the measurement of the detonation temperature and the internal structure of reaction zone of explosives, which are summarized as follows:1. Using optical fiber spectrum, the emission spectrum of the standard bromine-tungsten lamp and the detonation of TNT were measured. Then based on the Plank formula, the detonation temperature as well as the spectrum emissivity of TNT were calculated by applied regression analysis method. At the same time,the emission spectrum history of TNT was measured by pyrometer meter.2. After an introduction of the basic principle of BKW code and VLW code, the detonation parameters (the detonation velocity and the detonation temperature) of HEs were calculated by using these two codes. A good agreement between the calculated detonation velocity and that from experiments was obtained. However, the calculated detonation temperature was quite far away from that obtained from experiments.3. Based on the theory of diameter effect, the widths of reaction zone of the TNT and the JB-9014 were gained by measuring the shape of the detonation waveform,The experimental results are accorded with the results given by literatures, which indicate the method used here to measure the width of reaction zone is feasible.4. The structures of reaction zone of JO-9159 and JB-9014 explosives were investigated using photo-electric technique. There is a distinct CJ point in the JO-9159 explosive, but not the case for JB-9014 explosive. It was found that the width of reaction zone and the reaction time decrease with the increasing of the explosive density.