NANOFOIL

Heat generating solids in the form of reactive multilayer sheets that alternate between two materials, each comprising one of the following element pairs, nickel and aluminum, aluminum and zirconium, aluminum and paladium, titanium and silicon, zirconium and silicon, niobium and silicon, titanium and carbon, zirconium and carbon, hafnium and carbon, titanium and boron, zirconium and boron, hafnium and boron, aluminum and copper oxide, aluminum and iron oxide, which support self-propagating reactions and act as local heat sources in joining, ignition, and propulsion applications