The Oxidation Process and Methods for Improving Reactivity of Al

Aluminum (Al) has been widely used in micro-electromechanical systems (MEMS), polymer bonded explosives (PBXs) and solid propellants. Its typical core-shell structure (the inside active Al core the external alumina (Al2O3) shell) determines its oxidation process, which is mainly influenced by oxidant diffusion, Al2O3 crystal transformation melt-dispersion of Al. Consequently, properties can be controlled changing these factors. Metastable intermixed composites (MICs), flake nano improve increasing diffusion efficiency oxidant. Fluorine, Titanium carbide (TiC), alloy crack shell to Furthermore, those materials with good thermal conductivity increase heat transferred internal Al, also reactivity Now, integration different modification methods employed further With ever-increasing demands on performance MEMS, PBXs propellants, Al-based composite high stability during storage transportation, for usage will become a new research focus future.