An ignition system includes a multi-metallic ignition body that has at least two metallic elements in contact with each other. The metallic elements define an ignition initiation temperature above which there is a self-sustaining alloying reaction. A fluorine-containing body is in contact with the multi-metallic ignition body. The metallic elements may include palladium or palladium-ruthenium and aluminum.

An ignition system includes a multi-metallic ignition body that has at least two metallic elements in contact with each other. The metallic elements define an ignition initiation temperature above which there is a self-sustaining alloying reaction. A fluorine-containing body is in contact with the multi-metallic ignition body. The metallic elements may include palladium or palladium-ruthenium and aluminum.

A composite reactive material for use in a munition is disclosed. The composite reactive material comprises a metal lattice structure having interstitial spaces and a powder in the interstitial spaces. The powder comprises at least one metal powder and/or at least one halogen-containing polymer powder.

A composite reactive material for use in a munition is disclosed. The composite reactive material comprises a metal lattice structure having interstitial spaces and a powder in the interstitial spaces. The powder comprises at least one metal powder and/or at least one halogen-containing polymer powder.

Phase-changing fuel compositions which can generate hydrogen are provided herein. The compositions can comprise a hydrogen carrier at least partially dissolved in a polar organic solvent. The hydrogen carrier includes ammonia borane and an alkylamine borane such as methylamine borane or methylenediamine bisborane. The hydrogen carrier act as the primary fuel source in the compositions and can be present in an amount of at least 60% by weight, based on the weight of the hydrogen generation composition. The hydrogen generation compositions are a liquid at temperatures of 5 C. or greater or 25 C. or greater. Methods for the production of hydrogen from the hydrogen generation compositions are further disclosed.

Phase-changing fuel compositions which can generate hydrogen are provided herein. The compositions can comprise a hydrogen carrier at least partially dissolved in a polar organic solvent. The hydrogen carrier includes ammonia borane and an alkylamine borane such as methylamine borane or methylenediamine bisborane. The hydrogen carrier act as the primary fuel source in the compositions and can be present in an amount of at least 60% by weight, based on the weight of the hydrogen generation composition. The hydrogen generation compositions are a liquid at temperatures of 5 C. or greater or 25 C. or greater. Methods for the production of hydrogen from the hydrogen generation compositions are further disclosed.

A composition that includes a fuel and a perfluoropolyether (PFPE) is disclosed. The composition may be used as a flare composition in a countermeasure device. Countermeasure devices including the flare composition are also disclosed, as are methods of forming grains of the countermeasure device.

A composition that includes a fuel and a perfluoropolyether (PFPE) is disclosed. The composition may be used as a flare composition in a countermeasure device. Countermeasure devices including the flare composition are also disclosed, as are methods of forming grains of the countermeasure device.

The present invention relates to a propellant in liquid or gel form, in particular for rocket engines, comprising: an inorganic salt as the oxidising agent, wherein the inorganic salt has an oxygen content of at least 60 weight %; and a solvent as the fuel, comprising a monovalent or divalent alcohol, a nitroalkane and/or an ionic liquid in which nitrate is the anion, wherein the solvent has an oxygen content of from 30 to 55 weight %, wherein the inorganic salt is dissolved in the solvent.

The present invention relates to a propellant in liquid or gel form, in particular for rocket engines, comprising: an inorganic salt as the oxidising agent, wherein the inorganic salt has an oxygen content of at least 60 weight %; and a solvent as the fuel, comprising a monovalent or divalent alcohol, a nitroalkane and/or an ionic liquid in which nitrate is the anion, wherein the solvent has an oxygen content of from 30 to 55 weight %, wherein the inorganic salt is dissolved in the solvent.