Effect of micron-sized zirconium powder on combustion decomposition behavior of molecular perovskite energetic material DAP-4

Micron-sized zirconium (μZr) is a viable alternative fuel source for high-energy propellants. To explore the combustion performance of Zr-containing DAP-4-based composites, DAP-4/Zr and F/DAP-4/Zr composites were designed. The results showed that the optimized composite had high combustion performance. When DAP-4/Zr was 54:46, the sample had the highest combustion heat and the fastest flame spreading velocity. The combustion time of F/DAP-4/Zr became longer after adding F 2602 , and the flame spread was the fastest when F/DAP-4/Zr was 10:48.6:41.4. The results indicate that the introduction of μZr as a fuel in DAP-4 can improve the material's energy density and combustion characteristics.