EP2468700B1 - Masse active à cible pyrotechnique pour cibles à rayonnement infrarouge - Google Patents

Masse active à cible pyrotechnique pour cibles à rayonnement infrarouge Download PDF

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Publication number
EP2468700B1
EP2468700B1 EP11009508.0A EP11009508A EP2468700B1 EP 2468700 B1 EP2468700 B1 EP 2468700B1 EP 11009508 A EP11009508 A EP 11009508A EP 2468700 B1 EP2468700 B1 EP 2468700B1
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Prior art keywords
particles
mixture
alloy
fuel
active decoy
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EP11009508.0A
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German (de)
English (en)
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EP2468700A3 (fr
EP2468700A2 (fr
Inventor
Arno Hahma
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Diehl Defence GmbH and Co KG
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Diehl Defence GmbH and Co KG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B27/00—Compositions containing a metal, boron, silicon, selenium or tellurium or mixtures, intercompounds or hydrides thereof, and hydrocarbons or halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/02—Compositions or products which are defined by structure or arrangement of component of product comprising particles of diverse size or shape
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J2/00—Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic or acoustic waves
    • F41J2/02—Active targets transmitting infrared radiation

Definitions

  • the invention relates to a pyrotechnic decoy effective mass for infrared decoy targets with spatial effect.
  • Such decoy effective masses are known from the prior art.
  • U.S. 3,474,732 A discloses a polyacrylamide composition comprising 12.6 parts of 60/40 magnesium / aluminum alloy (80 mesh), 8.4 parts of magnesium (40 mesh) and 26.3 parts of sodium nitrate.
  • the particle sizes of the magnesium / aluminum alloy and the magnesium are different so that one of the two substances can be reliably ignited and then the second substance ignites.
  • the pyrotechnic decoy bodies are decoy plates.
  • the pyrotechnic composition contains either one opposite the oxidizing agent stoichiometric excess of the oxidizable metal and / or a first metal as the oxidizable metal and an oxide of a second metal as the oxidizing agent, which is reduced to the metal by the combustion reaction, so that hot, infrared radiation-emitting metal remains after the combustion reaction.
  • the container is brought into the air and the decoy plates are ignited by the ignition device.
  • the container is then torn open, for example by building up pressure in the container, in order to disperse the decoy plates with the formation of a cloud of IR radiation sources.
  • the cloud generates strong IR radiation.
  • Metal present after the decoy plates have been burned is hot thanks to the heat generated during the combustion and therefore emits in the IR range and has only negligible visible or UV radiation.
  • the deception is therefore effective beyond the duration of the decoy plate burning and a decoy cloud of relatively long duration can be created.
  • the lighting device is therefore suitable as an infrared decoy target for protecting stationary or slowly moving potential targets, such as tanks, but not for simulating a fast-flying aircraft.
  • a flare mass for generating decoy targets with a fire mass component and an inert component is known.
  • the weight ratio of incendiary mass component and inert component is set so that the maximum of the spectral radiance of the flare mass is shifted to longer wavelengths in adaptation to the spectral radiance distribution of the target signature to be simulated compared to the spectral radiance distribution of the incendiary mass component alone.
  • the pyrotechnic incendiary material can be red phosphorus with an ignition temperature of around 400 ° Celsius.
  • the inert additive used for heat conduction or heat dissipation, a binding agent and a carrier material are selected in such a way that they lower the temperature of the decoy, whereby the spectral radiance of the decoy is shifted to higher wavelengths in the infrared range.
  • the flare mass can only be used to protect objects with a relatively low surface temperature, such as ships, drilling platforms and tanks. Fast-flying aircraft cannot be imitated by such a decoy and thus cannot be protected, since the radiated power of this decoy type is too low for this.
  • a pyrotechnic flare to be fired by an aircraft for deflecting projectiles heading towards the aircraft from its gas outlet with at least one tablet which is contained in an airtight, tearable container is known.
  • the tablet has a compactly pressed, essentially bubble-free area of separate pieces of an infrared radiation-emitting pyrotechnic composition which consist of a gas-releasing infrared light-emitting pyrotechnic composition.
  • the pyrotechnic composition can comprise an oxidizing halogenized polymer and an oxidizable metal material, which react exothermically with one another after ignition and can emit infrared radiation, and activated carbon fibers impregnated with a metal salt.
  • the container is designed in such a way that it ruptures under a predetermined internal pressure resulting from the combustion of the pyrotechnic composition and releases the individual pieces shortly after essentially all parts have been ignited.
  • the pyrotechnic flare has been fired and the pyrotechnic composition is ignited, the tablet bursts and a cloud of pieces of the burning pyrotechnic composition forms, which is quickly decelerated and burns with high infrared intensity for a short time.
  • Such a deception flare is not able to simulate a fast-flying aircraft in a newer generation seeker head because the infrared source has an unrealistic flight path due to the rapid deceleration in the air.
  • the object of the present invention is to provide a pyrotechnic decoy active compound for infrared decoy targets which can simulate a fast-flying aircraft to an image-resolving infrared seeker head.
  • a pyrotechnic decoy target material for infrared decoy targets.
  • This decoy active mass comprises first particles, which comprise a first fuel, second particles, which comprise the first or a second fuel, an oxidizing agent for the first fuel and a binder.
  • the first fuel is a metal.
  • the second fuel can be a metal.
  • the second particles can also consist exclusively of the second fuel.
  • the first fuel and the oxidizing agent can react with one another in an exothermic reaction with the release of infrared radiation, the second particles are ignited by the reaction and released from the decoy active mass.
  • the first particles can be smaller than the second particles, ie have a smaller volume than the second particles.
  • the first particles can also be made in some other way, for example by the ratio of their surface area to their mass, that they burn faster than the second particles after the decoy active mass has been ignited in air.
  • the second particles are designed in such a way that they burn in air for at least 10 ms, the second particles having an average diameter of 0.5 to 3 mm, the first particles having an average diameter of 30 to 70 ⁇ m.
  • the first particles react quickly with the oxidizing agent and burn off within a primary flame.
  • the primary flame represents a point target.
  • the second particles are ignited in the primary flame, but do not burn off within the primary flame. Hot, burning second particles are ejected from the flame and continue to burn in the air without significantly reacting with the oxidizing agent.
  • the oxidizing agent is thus almost completely available for the oxidation of the first fuel.
  • Another advantage of the different sizes of the first and second particles is that the larger second particles considerably increase the mechanical stability of the decoy active compound, since they act as mechanical crosslinkers, similar to stones in concrete.
  • the pyrotechnic decoy effective mass according to the invention enables the infrared radiation of an exhaust gas plume of a fast-flying aircraft to be simulated very well. If the decoy effective mass moves during the burn, for example at a speed of 200-250 m / s, the burning first particles form a point-shaped primary flame, while the second particles released during the burn take up a large space that corresponds to the exhaust plume of a jet aircraft without doing anything to lose intensity quickly. A second particle burning in the air for 10 ms flies 2 m at a speed of 200 m / s. This can also fool newer search heads. A space-consuming tail is formed that is very similar to the exhaust tail of a fast-flying airplane.
  • the IR radiation of the second particles which are still moving rapidly during the burn-off, is not shielded from the smoke produced, in contrast to the IR radiation of particles that have been strongly decelerated in the air, so that one can be seen from a distance detectable intense infrared radiation is released.
  • Modern search heads are designed in such a way that they detect exhaust plumes with an infrared detector. An elongated moving infrared source with a point radiator flying in front is identified as an aircraft, while a point infrared source is identified as a decoy target.
  • the second particles are preferably such that they burn in air for at least 100 ms. This results in a 20 m long tail with a spatial effect at a speed of 200 m / s.
  • the nature of the second particles and in particular their size is preferably selected as a function of the exhaust gas plume to be reproduced. It has proven to be favorable if the second particles are made such that they burn in air for a maximum of 1 s, in particular a maximum of 500 ms, in particular a maximum of 200 ms.
  • the second particles burn at least ten times, in particular at least a hundred times, in particular at least a thousand times, longer than the first particles, with simultaneous ignition with the first particles in the decoy target.
  • the first fuel can be aluminum, magnesium, titanium, zirconium, hafnium, calcium, lithium, niobium, tungsten, manganese, iron, nickel, cobalt, zinc, tin, lead, bismuth, an alloy or a mixture of at least two of these Metals, a zirconium-nickel alloy or mixture, an aluminum-magnesium alloy or mixture, a lithium-aluminum alloy or mixture, a calcium-aluminum alloy or mixture, an iron-titanium alloy or - Act mixture or a zirconium-titanium alloy or mixture.
  • the second fuel preferably consists of at least one metal.
  • it can be aluminum, magnesium, titanium, zirconium, hafnium, calcium, lithium, niobium, tungsten, manganese, iron, nickel, cobalt, zinc, tin, lead, bismuth, an alloy or mixture of at least two of these metals, a zirconium-nickel alloy or mixture, an aluminum-magnesium alloy or mixture, a lithium-aluminum alloy or mixture, a calcium-aluminum alloy or mixture, an iron-titanium alloy or mixture, a zirconium-titanium alloy or mixture, boron, elemental carbon, expandable graphite, bituminous coal, a lithium-silicon alloy, charcoal, lignite, phosphorus, sulfur, silicon, sawdust, or wood.
  • a metal or A metal alloy has proven to be particularly favorable as a second fuel for imitating the exhaust plume of an aircraft with regard to the burn-off properties and the flight properties of the second particles after
  • the second particles preferably have a thermal conductivity of at least 20 W / (m ⁇ K).
  • the second particles can accelerate the burn-up of the decoy active material by introducing heat from the primary flame resulting from the burn-up of the first particles into the not yet burned decoy active material during the burn. This is particularly effective when the second particles are in the form of strips, pieces of wire or chips.
  • the thermal conductivity of the second particles exceeds the thermal conductivity of the remaining decoy active compound by at least a factor of 10, in particular at least by a factor of 100, in particular at least by a factor of 1000 their ignitability is also improved, because a small inflamed area is sufficient to distribute the heat very quickly throughout the entire decoy target and to cause an ignition there as well.
  • the second particles are preferably porous, at least on their surface. This improves their ignitability.
  • the second fuel is a metal or a metal alloy, a solid carbon fluoride, in particular polytetrafluoroethylene (PTFE), a solid fluorocarbon or some other oxidizing agent which forms soot when reacting with the second fuel can be contained in pores of such second particles. As a result, a very high temperature is reached when the second particles are burned off. At the same time, the soot increases the emission of black body radiation.
  • PTFE polytetrafluoroethylene
  • the second particles have an average diameter of 0.5 to 3 mm, preferably 1 to 1.5 mm.
  • the surface of the particles is large enough to radiate intensely when burned and the particles are large enough to burn and fly long enough in the air.
  • the first particles have an average diameter of 30 to 70 ⁇ m, preferably 40 to 60 ⁇ m.
  • a fluoroelastomer in particular a fluororubber, such as, for example, “Viton” from “DuPont Performance Elastomere”, has proven to be advantageous as a binder.
  • the oxidizing agent is preferably a halogen-containing polymer, in particular polytetrafluoroethylene (PTFE). It has proven to be favorable for achieving rapid and complete combustion of the first particles if the quantitative ratio of the first fuel contained in the decoy target active mass to the oxidizing agent contained therein is stoichiometric or deviates from a stoichiometric quantitative ratio by a factor of at most 0.5.
  • a stoichiometric quantity ratio is a quantity ratio in which the oxidizing agent and the first fuel theoretically completely react with one another in a reaction, so that neither a remainder of the oxidizing agent nor a remainder of the first fuel remains.
  • the decoy active composition according to the invention contains a burn-up catalyst, in particular copper talocyanine, in order to accelerate the burn-up.
  • Magnesium or a mixture of aluminum and magnesium each obtained from Ecka Granulate GmbH & Co. KG, Marieth, Germany, was used as the first fuel, which forms the first particles.
  • the average grain size of the magnesium particles was about 50 ⁇ m and the average grain size of the aluminum particles ⁇ 10 ⁇ m.
  • the copper talocyanine serves as a combustion catalyst and the guanidine azotetrazolate (GZT) to enlarge the primary flame.
  • the titanium powder was obtained from Tropag Oscar H. Ritter Nachf. GmbH, Hamburg, Germany, and the brown coal from Rheinbraun Medicinesffen GmbH, Germany.
  • the tablets were burned off and their radiation output was determined with a radiometer.
  • the performance was determined in relation to the performance of tablets made from MTV (Magnesium-Teflon-Viton) as a standard.
  • the energy was measured in joules / (g / sr) in the A band, ie at a wavelength of approx. 1.8 to 2.6 ⁇ m, and in the B band, ie at a wavelength of approx. 3.5 to approx. 4.6 ⁇ m, measured in a standing test, ie without wind.
  • the A-band and the B-band are the wavelengths that are detected by conventional seeker heads.
  • MTV Magnetic-Teflon-Viton
  • MTV Magnetic-Teflon-Viton
  • STV Magnetic-Teflon-Viton
  • Example 1 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium sponge Grain: 400-815 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had an extremely large spatial effect due to the coarse-grained titanium sponge.
  • the effective mass showed a performance that corresponded to 200% of the performance of MTV (at the same speed) and an approx. 100 m long tail.
  • Example 2 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium sponge Grain: 600-850 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to the coarse-grained titanium sponge.
  • Example 3 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium sponge Grain: 400-600 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to the medium-grain titanium sponge.
  • Example 4 (not according to the invention): material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium sponge Grain: 100-300 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to the fine-grained titanium sponge.
  • Example 5 (not according to the invention): material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium powder Spherical, grain size ⁇ 100 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to coarse-grained spherical titanium. Under dynamic conditions at a wind speed of 150 m / s, an approx. 20 m long tail can be generated.
  • Example 6 (not according to the invention): material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium powder Spherical, grain size ⁇ 45 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect through fine-grained spherical titanium. Under dynamic conditions at a wind speed of 150 m / s, a tail a few meters long can be generated.
  • Example 7 (not according to the invention): material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Titanium powder Chemetall type FH, grain size: approx. 15 ⁇ m 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had no spatial effect.
  • This active mass does not correspond to the invention.
  • the titanium powder here had an average grain size of approx. 15 ⁇ m. It burns too quickly to develop a spatial effect.
  • Example 8 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Hard coal, household quality Grain size ⁇ 2.0 mm 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to the coarse-grained coal granulate. The coal did not react completely when the active mass was burned off.
  • Example 9 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Hard coal, household quality Grain size ⁇ 1.0 mm 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to fine-grained coal granules.
  • the hard coal reacted with a higher degree of conversion than the coarse-grained hard coal granules in Example 8.
  • Example 10 material Type Weight percent magnesium LNR 61 48.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Brown coal Schuprofi, grain size ⁇ 1.0 mm 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to lignite granules.
  • Example 11 material Type Weight percent aluminum Ecka Pyro TL III, grain size ⁇ 10 ⁇ m 24.0 magnesium LNR 61 24.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Hard coal Household quality, grain size ⁇ 1.0 mm 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material.
  • the reaction had a spatial effect due to coal granules.
  • Example 12 material Type Weight percent aluminum Ecka Pyro TL III, grain size ⁇ 10 ⁇ m 24.0 magnesium LNR 61 24.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 11.9 Brown coal Hammerprofi, grain size ⁇ 1.0 mm 20.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material.
  • the reaction had a spatial effect due to lignite granules.
  • Example 13 material Type Weight percent magnesium LNR 61 45.0 Graphite fluoride Sigma-Aldrich 19.0 Hard coal Household quality, grain size ⁇ 1.0 mm 18.0 Viton 3M Fluorel FC-2175 11.9 Guanidine azotetrazolate (GZT) Self-synthesis 6.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material.
  • the reaction had a spatial effect due to coal granulate and GZT as a flame spreading agent.
  • Example 14 material Type Weight percent magnesium LNR 61 45.0 Graphite fluoride Sigma-Aldrich 19.0 Brown coal Schuprofi, grain size ⁇ 1.0 mm 18.0 Viton 3M Fluorel FC-2175 11.9 Guanidine azotetrazolate (GZT) Self-synthesis 6.0 Copper talocyanine BASF Vossenblau 0.1
  • This phantom target active material is a black body active material.
  • the reaction had a spatial effect due to lignite granulate and GZT as a flame spreading agent.
  • Example 15 (not according to the invention): material Type Weight percent magnesium LNR 61 38.0 Graphite fluoride Sigma-Aldrich 20.0 Viton 3M Fluorel FC-2175 12.0 zirconium Svenska Kemi, grain size ⁇ 80 ⁇ m 30.0
  • This phantom target active material is a black body active material based on graphite fluoride.
  • the reaction had a spatial effect due to medium-grain zirconium. Zirconium also caused an increase in the reaction temperature.

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Claims (12)

  1. Masse active de leurre pyrotechnique pour leurres infrarouges, comprenant des premières particules, qui comprennent un premier combustible, des deuxièmes particules, qui comprennent le premier ou un deuxième combustible, un agent oxydant pour le premier combustible et un liant, le premier combustible étant au moins un métal, le deuxième combustible étant au moins un métal, ou les deuxièmes particules étant exclusivement constituées du deuxième combustible, le premier combustible et l'agent oxydant pouvant réagir l'un avec l'autre après l'allumage dans une réaction exothermique avec libération de rayonnement infrarouge, les deuxièmes particules s'enflammant par la réaction et étant libérées de la masse active de leurre, les premières particules étant plus petites que les deuxièmes particules, de telle sorte qu'elles brûlent plus rapidement dans l'air que les deuxièmes particules après un allumage de la masse active de leurre, les deuxièmes particules étant conçues de telle sorte qu'elles brûlent pendant au moins 10 ms dans l'air, les deuxièmes particules présentant un diamètre moyen de 0,5 à 3 mm, les premières particules présentant un diamètre moyen de 30 à 70 µm.
  2. Masse active de leurre pyrotechnique selon la revendication 1, dans laquelle le premier combustible comprend de l'aluminium, du magnésium, du titane, du zirconium, du hafnium, du calcium, du lithium, du niobium, du tungstène, du manganèse, du fer, du nickel, du cobalt, du zinc, de l'étain, du plomb, du bismuth, un alliage ou mélange d'au moins deux de ces métaux, un alliage ou mélange zirconium-nickel, un alliage ou mélange aluminium-magnésium, un alliage ou mélange lithium-aluminium, un alliage ou mélange calcium-aluminium, un alliage ou mélange fer-titane, un alliage ou mélange zirconium-titane, ou un alliage ou mélange lithium-silicium.
  3. Masse active de leurre pyrotechnique selon la revendication 1 ou 2, dans laquelle le deuxième combustible comprend de l'aluminium, du magnésium, du titane, du zirconium, du hafnium, du calcium, du lithium, du niobium, du tungstène, du manganèse, du fer, du nickel, du cobalt, du zinc, de l'étain, du plomb, du bismuth, un alliage ou mélange d'au moins deux de ces métaux, un alliage ou mélange zirconium-nickel, un alliage ou mélange aluminium-magnésium, un alliage ou mélange lithium-aluminium, un alliage ou mélange calcium-aluminium, un alliage ou mélange fer-titane, un alliage ou mélange zirconium-titane, du bore, du carbone élémentaire, du graphite expansé, de la houille, du charbon de bois, de la lignite, du phosphore, du soufre, du silicium, un alliage lithium-silicium, de la sciure ou du bois.
  4. Masse active de leurre pyrotechnique selon la revendication 1 ou 2, dans laquelle le deuxième combustible est constitué d'au moins un métal.
  5. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle les deuxièmes particules présentent une conductivité thermique d'au moins 20 W/(m·K).
  6. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle la conductivité thermique des deuxièmes particules dépasse la conductivité thermique de la masse active de leurre restante d'au moins un facteur de 10, notamment d'au moins un facteur de 100, notamment d'au moins un facteur de 1 000.
  7. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle les deuxièmes particules se présentent sous la forme de bandes, de tronçons de fils ou de copeaux, ou sont configurées sous forme poreuse, au moins au niveau de leur surface.
  8. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle le deuxième combustible est un métal ou un alliage métallique et les deuxièmes particules sont configurées sous forme poreuse, au moins au niveau de leur surface, et un fluorure de carbone solide, notamment du polytétrafluoroéthylène (PTFE), un hydrocarbure fluoré solide ou un autre agent oxydant, qui forme du noir de carbone lors de la réaction avec le deuxième combustible, est contenu dans des pores des deuxièmes particules.
  9. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle les deuxièmes particules présentent un diamètre moyen de 1 à 1,5 mm.
  10. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle les premières particules présentent un diamètre moyen de 40 à 60 µm.
  11. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle l'agent oxydant est un polymère contenant de l'halogène, notamment le polytétrafluoroéthylène (PTFE) ou le polychloroprène.
  12. Masse active de leurre pyrotechnique selon l'une quelconque des revendications précédentes, dans laquelle le rapport de quantités entre le premier combustible contenu dans la masse active de leurre et l'agent oxydant contenu dans celle-ci est stœchiométrique ou diffère d'un rapport de quantités stœchiométrique au plus d'un facteur de 0,5.
EP11009508.0A 2010-12-08 2011-12-01 Masse active à cible pyrotechnique pour cibles à rayonnement infrarouge Active EP2468700B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010053694A DE102010053694A1 (de) 2010-12-08 2010-12-08 Pyrotechnische Scheinzielwirkmasse für Infrarotscheinziele

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EP2468700A2 EP2468700A2 (fr) 2012-06-27
EP2468700A3 EP2468700A3 (fr) 2017-09-20
EP2468700B1 true EP2468700B1 (fr) 2021-09-29

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EP11009508.0A Active EP2468700B1 (fr) 2010-12-08 2011-12-01 Masse active à cible pyrotechnique pour cibles à rayonnement infrarouge

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DE (1) DE102010053694A1 (fr)
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DE102011103483A1 (de) * 2011-06-03 2012-12-06 Diehl Bgt Defence Gmbh & Co. Kg Wirkmasse für ein beim Abbrand spektral strahlendes Infrarotscheinziel mit Raumwirkung
DE102011103482A1 (de) * 2011-06-03 2012-12-06 Diehl Bgt Defence Gmbh & Co. Kg Hochleistungswirkmasse für ein beim Abbrand spektral strahlendes Infrarotscheinziel
DE102012015761A1 (de) 2012-08-09 2014-02-13 Diehl Bgt Defence Gmbh & Co. Kg Wirkmasse für ein pyrotechnisches Scheinziel mit hoher Emissivität
GB2534573A (en) * 2015-01-27 2016-08-03 Bae Systems Plc Reactive materials
CN109942355B (zh) * 2017-12-20 2021-01-29 中国石油天然气集团公司 一种自燃式点火剂

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US3257801A (en) * 1962-07-09 1966-06-28 North American Aviation Inc Pyrotechnic composition comprising solid oxidizer, boron and aluminum additive and binder
US3474732A (en) * 1968-10-02 1969-10-28 Dow Chemical Co Layered magnesium containing structure
FI842470A (fi) * 1984-06-19 1985-12-20 Raikka Oy Hoegenenergiblandning som aer avsedd foer drivaemnen, pyrotekniska blandningar, spraengaemnen eller motsvarande och foerfarande foer dess framstaellning.
GB9120803D0 (en) 1991-10-01 1995-03-08 Secr Defence Pyrotechnic decoy flare
DE4327976C1 (de) 1993-08-19 1995-01-05 Buck Chem Tech Werke Flaremasse zur Scheinzielerzeugung
US5470408A (en) * 1993-10-22 1995-11-28 Thiokol Corporation Use of carbon fibrils to enhance burn rate of pyrotechnics and gas generants
GB9612655D0 (en) 1996-06-17 2003-05-28 Secr Defence Infra-red emitting decoy flare
US6635130B2 (en) * 1999-10-09 2003-10-21 Diehl Munitionssysteme Gmbh & Co. Kg Pyrotechnic composition for producing IR-radiation
US8277583B2 (en) * 2008-06-25 2012-10-02 The United States Of America As Represented By The Secretary Of The Navy Perchlorate-free red signal flare composition
US7988801B2 (en) * 2008-06-25 2011-08-02 The United States Of America As Represented By The Secretary Of The Navy Perchlorate-free green signal flare composition
DE102008060573B4 (de) * 2008-12-04 2016-08-11 Diehl Bgt Defence Gmbh & Co. Kg Pyrotechnische Wirkmasse zur Erzeugung eines Tarnnebels
DE102008063907B4 (de) * 2008-12-19 2011-04-21 Weco Pyrotechnische Fabrik Gmbh Pyrotechnischer Körper mit Titan und seine Verwendung

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DE102010053694A1 (de) 2012-06-14
ZA201108936B (en) 2012-08-29
IL216848A0 (en) 2012-03-29
IL216848A (en) 2015-10-29
EP2468700A3 (fr) 2017-09-20
EP2468700A2 (fr) 2012-06-27

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