Abrupt Transition of Nanothermite Reactivity: The Roles of Loading Density, Microstructure and Ingredients.

ABSTRACT: Nanothermites are widely applied as specific power sources for microscale initiators and pyrotechnics. Increasing the charge density enhances energy storage within a confined combustion chamber, but it also alters the reaction kinetics. To systemically explore this phenomenon, the combustion and pressurization characteristics of electrosprayed nanothermite-based hybrid energetic materials (THEMs) with different metallic oxides (Fe₂O₃, CuO, and Bi₂O₃) and various energetic additives (nitrocellulose (NC), octogen (HMX), ammonium perchlorate (AP), and hexanitrohexaazaisowurtzitane (CL-20)) across various loading densities were tested. The results showed that increasing the loading density decreased the porosity of the loaded nanothermites and then r

SUBMITTER: Ru C 

PROVIDER: S-EPMC12565809 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature