Abstract: The invention provides a pyrotechnic composite and process for preparing the same, wherein the pyrotechnic composite comprises a mixture of an alkaline earth metal sulfate, particulate boron and at least one additional particulate metal which is capable of exothermically reacting with boron. The exothermic reaction between the components of the pyrotechnic composite releases a thermal radiation of at least about 300 W/cm.sup.2 -Steradian and a visible light energy of at least about 1.0.times.10.sup.4 LUX.

Abstract: A low-density, thermally insulating composite which is ablation resistant and impervious to gases and liquids. The composite is comprised of a carbon-carbon syntactic foam material which is covered and penetrated by pyrolytic carbon, in order to increase the strength of the foam material. Pyrolytic graphite is then deposited onto at least one surface of the pyrolytic carbon covered and penetrated foam material to improve the thermal insulation of the composite and render it impervious to gas or liquids.

Abstract: A bimetallic adhesive for surface bonding and for controlled release applications that is non-explosive and which also provides improved shock, moisture, temperature and spark resistance characteristics. The bimetallic adhesive comprises a resinous adhesive binder and a bimetallic mixture, which consists of boron and titanium powders. The bimetallic adhesive mixture provides a controlled release function to separate a bonded surface when heated to a temperature above 600.degree. C., thereby causing the mixture to react exothermically to effect complete deflagration of the mixture.