Surface Modification of High Explosives
John Miller | 21-FS-014
In the laboratory, it is difficult to synthesize high explosive (HE) crystals with outlier performance from existing molecules. Therefore, it would be interesting to develop a process for functionalizing high explosive powders to improve their performance and manufacturability without sacrificing insensitivity. This
This work is highly impactful to laboratory missions in accelerated materials and manufacturing as well as the mission research challenge in high explosive physics, chemistry, and materials science. In this work we demonstrated a means to functionalize explosive crystals without changing their sensitivity, which is critical for improving explosives manufacturing, our understanding of explosives chemistry, and maintaining the nation's nuclear stockpile. This project could create a new program direction in explosives chemistry, physics, and manufacturing. Through this project we also investigated inverse gas chromatography (a capability that does not exist at Lawrence Livermore National Laboratory) as a technique for measuring surface properties, like surface energy. This technique could be valuable for other laboratory missions and research related to additive manufacturing (powder bed and inkjet) and energy technology (batteries, carbon nanotubess, catalysts, etc.).