Ignition and Combustion Characteristics of Al/Si/Bi2O3 and Al/Fe2O3/Bi2O3 Nanothermites(Abstract)

摘要

Over the past fifteen years, the energetic materials research has focused on the replacement of micron scale reactants with nano scale reactants in order to tune their combustion characteristics. Until recently, research in the area of nanothermites has focused on binary nanothermite systems. These nanothermite materials have also been referred to as metastable interstitial composites (MIC) or superthermites. These reactive systems have traditionally consisted of spherical nanoscale aluminum mixed with submicron or nanoscale oxidizers such as Bi2O3, MoO3, CuO, WO3, or Fe2O3. Innovative Materials and Processes, LLC (IMP) in conjunction with South Dakota School of Mines and Technology (SDSM&T) has been conducting research focusing on the formation of low cost composite nanothermite materials with strongly tunable combustion characteristics for their use in pyrotechnic applications.