A reduced toxicity pyrotechnic strobe composition and method includes creating a mixture of strontium nitrate, magnalium, sulfur, and no more than 10 parts by weight of a nitrocellulose binder. The strontium nitrate may comprise 27 percent of the mixture. The magnalium may comprise a 50:50 blend of magnesium and aluminum. The magnalium may comprise 18 percent of the mixture. The sulfur may comprise 55 percent of the mixture. The mixture may include a pulse rate of approximately one pulse per minute. The method may further include modifying the pulse rate of the mixture. The method may further include using a reduced particle size of the magnalium. The method may further include substituting no more than 12.5% of the strontium nitrate with potassium nitrate.

The present disclosure relates to pyrophoric pellets that break apart into individual particulates or agglomerates when exposed to air and emit infrared radiation. The pyrophoric pellets include: (a) about 35 to about 95 wt. % of pyrophoric particles; (b) about 0.05 to about 30 wt. % of one or more thermally expandable particles; (c) about 1 to about 40 wt. % of one or more additives that modify IR signature; and (d) optionally, one or more additives that produce smoke at a temperature of 150 C. or greater. The pyrophoric pellets are particularly useful as countermeasures to protect against incoming missiles.

The present disclosure relates to pyrophoric pellets that break apart into individual particulates or agglomerates when exposed to air and emit infrared radiation. The pyrophoric pellets include: (a) about 35 to about 95 wt. % of pyrophoric particles; (b) about 0.05 to about 30 wt. % of one or more thermally expandable particles; (c) about 1 to about 40 wt. % of one or more additives that modify IR signature; and (d) optionally, one or more additives that produce smoke at a temperature of 150 C. or greater. The pyrophoric pellets are particularly useful as countermeasures to protect against incoming missiles.

Provided is a bullet hit squib including: an electrical connection line; a glow wire connected to the electrical connection line; and a primary explosive charge by which an active substance is formed which can be ignited by the glow wire. The primary explosive charge is formed by a primary explosive which is free of heavy metals and contains silver azide. A method for producing a bullet hit squib is also provided.

Inorganic fuel selected from the group of sulphocyanides of noble metals as specially copper, as well as the derivatives of urea and semicarbazide and theirs derivatives and organic fuel selected from the group of thiols with sulphur bound in the SH group or in the heterocyclic rings and the metal salts of these compounds, mostly cuprous or cupric, which are suitable for the infrared tracer compositions used in bullets. With a suitable oxidant, which is zinc peroxide, the fuel forms binary mixtures that, during combustion, emit radiation in the near-infrared region that is invisible to the naked eye. On the basis of this invention tracer compositions do not require any additional auxiliary pyrotechnic systems. They are intended for use in infrared tracers of conventional calibres of bullet ammunition.

Inorganic fuel selected from the group of sulphocyanides of noble metals as specially copper, as well as the derivatives of urea and semicarbazide and theirs derivatives and organic fuel selected from the group of thiols with sulphur bound in the SH group or in the heterocyclic rings and the metal salts of these compounds, mostly cuprous or cupric, which are suitable for the infrared tracer compositions used in bullets. With a suitable oxidant, which is zinc peroxide, the fuel forms binary mixtures that, during combustion, emit radiation in the near-infrared region that is invisible to the naked eye. On the basis of this invention tracer compositions do not require any additional auxiliary pyrotechnic systems. They are intended for use in infrared tracers of conventional calibres of bullet ammunition.

An apparatus with an anti-tamper architecture includes a substrate and a layer of a pyrotechnic composite arranged on a surface of the substrate. The pyrotechnic composite includes a metal and a metal oxide, and the layer has a thickness of about 1 micrometer to about 10 millimeters. A reaction of the pyrotechnic composite is an exothermic reaction and at least partially fractures the substrate after the reaction is initiated.

An apparatus with an anti-tamper architecture includes a substrate and a layer of a pyrotechnic composite arranged on a surface of the substrate. The pyrotechnic composite includes a metal and a metal oxide, and the layer has a thickness of about 1 micrometer to about 10 millimeters. A reaction of the pyrotechnic composite is an exothermic reaction and at least partially fractures the substrate after the reaction is initiated.

Flares with consumable weights connected to a forward end of the grain of the flare are disclosed. Also disclosed are consumable weight components for flares. The consumable weight components include a metal material within a matrix. Also disclosed are methods for fabricating a flare and methods for using a flare. Use of the consumable weights in the flares may reduce the amount of debris falling to ground.

Flares with consumable weights connected to a forward end of the grain of the flare are disclosed. Also disclosed are consumable weight components for flares. The consumable weight components include a metal material within a matrix. Also disclosed are methods for fabricating a flare and methods for using a flare. Use of the consumable weights in the flares may reduce the amount of debris falling to ground.