Thermal reaction processes and characteristics of an Al/MnO2 pyrotechnic cutting agent based on residue analyses

• DOI: 10.17222/mit.2019.125
• Publication Date: 2020-06-26T07:37:22Z
• Authors: J. Song; T. Guo; W. Ding; M. Yao; X. Zhang; J. Huang; F. Bei; Z. Yu; F. Liu; X. Fang
• Keywords: Residue (chemistry)

The pyrotechnic cutting performance of an Al/MnO2 mixture was carried out via onset experiment.In order to understand the thermal reaction processes sample, both oxide component (MnO2) and were tested by simultaneous analysis.The chemical analysed based on residue analysis.There obvious combustion flame during agent, could melt through steel target easily, which meant thermite had a good performance.Thermal reactions between Al MnO2 several processes, including two decompositions process exothermic reactions.As for main reaction, measured heat release about 323.9J g -1 in temperature range from 547.8 °C 641.6 before melt.The products mainly MnO (manganosite) Al2O3.