NANOENERGETIC MATERIALS BASED ON ALUMINUM AND BISMUTH OXIDE

摘要

This invention generally relates to the field of energetic materials, and more particularly to relatively environmentally benign, lead-free energetic material compositions based on aluminum and at least one oxidant, preferably bismuth trioxide. In a preferred embodiment, a composition of the invention comprises from about 95 percent by weight to 70 percent by weight of an oxidant, such as bismuth trioxide, having particle sizes of about 10 nanometers to about 5 micrometers, and, from about 5 percent by weight to about 30 percent by weight of a solid-powdered fuel, wherein the solid-powered fuel comprises aluminum having particle sizes of about 30 nanometers to about 5 micrometers. The composition may also comprise a surface modifier. The compositions of this invention are useful in percussion primers, ignition devices, propellants, explosives, pyrotechnic formulations and similar applications.