Structural evolution of CL-20/DNB cocrystals at high temperature: Phase transition and kinetics of thermal decomposition

completely, leading to lattice collapse of cocrystal; simultaneously, CL-20 undergoes a transition process from beta phase to gamma phase. Ultimately, gamma-CL-20 gradually decomposes with increasing temperature. The activation energy of cocrystal is also obtained as 129 +/- 10 kJ/mol. The understanding of cocrystal explosive was deepened and the further application was promoted.

Automated summary

In this study, it was found that the heating of cocrystals can lead to lattice collapse, and simultaneously CL-20 undergoes a transition process from the beta phase to the gamma phase. Ultimately, gamma-CL-20 gradually decomposes with increasing temperature. The activation energy of the cocrystal was determined to be 129 +/- 10 kJ/mol. These findings deepen the understanding of cocrystal explosives and promote further applications.