EP3250539B1 - Matériaux réactifs - Google Patents

Matériaux réactifs Download PDF

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Publication number
EP3250539B1
EP3250539B1 EP16702765.5A EP16702765A EP3250539B1 EP 3250539 B1 EP3250539 B1 EP 3250539B1 EP 16702765 A EP16702765 A EP 16702765A EP 3250539 B1 EP3250539 B1 EP 3250539B1
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EP
European Patent Office
Prior art keywords
range
present
hafnium
metals
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16702765.5A
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German (de)
English (en)
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EP3250539A1 (fr
Inventor
Dennis Joseph FLYNN
Eric John KENNETT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems PLC
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BAE Systems PLC
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Publication date
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Publication of EP3250539A1 publication Critical patent/EP3250539A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • 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

Definitions

  • the invention relates to high density reactive materials, preferably materials with a high density and exothermic output.
  • High Density reactive materials are a new emerging class of materials http://en.wikipedia.org/wiki/Reactive_materials, which have higher densities than conventional reactive materials such that they may provide enhanced performance with mechanical properties suitable for application in a broad range of weapon systems. This includes potential for effective transfer of Kinetic Energy in impact penetrators, fragments and other systems, whilst offering an additional advantage of providing a further exothermic output under explosive loading or following High Velocity impact.
  • US2003/0070540 is directed to a projectile shell having a core region which contains a reactive composition comprised of a reactive metal and an oxidizer.
  • US 4 381 692 A discloses high-density reactive material for use in a munition.
  • US 2005/199323 A1 discloses high-density reactive material comprising hafnium.
  • EP 0 051 324 A1 is directed to metallic fuel/incendiary compositions.
  • US 4 131 498 A is directed to incendiary compositions Zr or Hf with a binder.
  • EP 1 348 683 A2 is directed to extrudable high density reactive materials based on metal and metal oxides.
  • EP 1 286 129 A1 is directed to an incendiary composition comprising titanium sponge in an epoxide resin or a polyester resin.
  • WO 2007/086830 is directed to nano powders, particularly metal and metal oxides.
  • US 3 956 038 A is directed to pyrotechnic compositions in a polymer binder
  • a high density reactive material composition comprising,
  • the reagent B) is selected from alloying elements carbon or boron.
  • the boron may be present in an amount 5 to 20%wt, preferably 10%wt.
  • the reagent A) group 4 metals are group 4, d-block (transition metals) such as titanium, zirconium, and hafnium. These metals offer high densities, and the specific selection of two different group 4 options offers a chance to target specific density ranges for the final composition whilst retaining similar reactivity.
  • At least one of the group 4 metals is hafnium.
  • the hafnium is present in the range of from 15 to 30%wt.
  • the group 4 metals may offer a range of morphologies - comprising nano, sub micron, or micron sized particulates.
  • the at least two group 4 metals may be selected to maximise mixing capability to promote uniformity of distribution (these may be substantially the same size, or targeted different size ranges to achieve a specific multimodal distribution, such as a bimodal distribution.
  • the reagent B may be selected from nano, sub micron, or micron sized particulates, such that upon intimate mixing with group 4 metals, may support/provide a homogenous mixture.
  • the particulate size of the group 4 metals and reagent B materials may be selected to provide multimodal distributions.
  • the reagent C) binder is at least one fluoroelastomer binder.
  • the fluoroelastomer binder may be selected from a range of materials such as for example hexafluoropropylene, vinylidene fluoride, terpolymers of tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene (HFP), perfluoromethylvinylether, THV 220, and PTFE, preferably a Viton, more preferably Viton A.
  • the reagent C) binder may preferably be present in the in the range of from 3 to 7%wt, preferably 5%wt.
  • a munition comprising a portion of the consolidated composition as defined herein.
  • the portion of the munition may comprise all, substantially all or part of a munition.
  • the munition may such as for example be a direct fire or indirect fire munition.
  • the munition may be kinetic energy or chemical energy munition or a combination thereof, such as, for example a projectile, shell, casing, shaped charge liner, preformed fragments or mortar.
  • the munition may be a kinetic energy projectile such as for example, such as a round, from a small calibre ordnance, a medium calibre projectile such as, for example calibres of 30- 40mm and above, penetrator rods or flechettes.
  • the projectile may comprise or contain only a monolithic projectile of consolidated composition as defined herein.
  • Certain medium calibre projectiles typically comprise a high explosive, the use of a projectile (small or medium calibre) comprising or containing only a consolidated composition according to the invention may provide an insensitive munition.
  • the munition may be a gun launched shell, such as for example, 105mm or 155mm, wherein part, substantially all or all of the shell casing is a composition as defined herein.
  • the composition may be prepared to form pre formed fragments which are further consolidated to form a shell casing.
  • a munition subjected to a high set back force such as a gun launched munition, preferably there is a higher percentage weight of fluoroelastomer binder.
  • the munition may comprise at least one layer deposed thereon of the composition as defined herein.
  • the casing of the munition may be subjected to prompt break up, ignition and burn to enhance blast effectiveness.
  • the particulates of the composition may not be consolidated and may be available as agglomerates/clumps, and may be ignited as such, and undergo ignition and continue to burn in flight. This may offer enhancement to blast and after burn or Kinetic Energy transfer to targets at range.
  • composition either solid or agglomerates may be ejected, or projected , in such a manner to retain physical form/mass and associated Kinetic Energy allowing reaction on impact with targets at a specific thresh-hold impact velocity causing shock reaction and ignition of the material on the surface or within the target structure.
  • a method of preparing a high density reactive material as defined herein such as for example, dead load pressing, isostatic pressing, hot sintering, to provide a composition which may be consolidated to form a structural casing or projectile.
  • Table 1 provides a number of examples where the composition comprises a group 4 metal present in the range of from 45 to 95%wt.
  • the materials are sintered, preferably using both elevated temperatures and pressure with the a binder and optional pressing aids to facilitate consolidation.
  • Table 2 # compounds no longer form part of the invention Reagent A Reagent B Reagent C Reagent A Overall Ref Name Wt % Name Wt % Name Wt % Name Wt % Effective Density by Wt fraction #1a Zirconium 25% CuO 50% Viton A 5% Hafnium 20% 6.27 21a Titanum 35% Boron 10% Viton A 5% Hafnium 50% 5.46 23a Hafnium 51% Boron 10% Viton A 5% Zirconium 34% 6.28 #25a Titanium 25% CuO 45% Viton A 5% Hafnium 25% 5.79 #26a Hafnium 20% CuO 45% Viton A 5% Zirconium 30% 6.28
  • Table 2 above provides preferred examples of compositions, wherein at least two different group 4 metals are selected.
  • the group 4 metals may be encapsulated or a passivation layer, or sacrificial layer to prevent reaction with air, moisture or unwanted reactions with the other reagents, until activated in the designed mode of use.
  • the group 4 metals may be encapsulated with at least one inert material, to prevent reaction with moisture or air.
  • the group 4 metal is premixed with reagent C) a fluoroelastomer binder. The coating/microencapsulation of the group 4 metal may prevent combustion in air during the sintering process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Powder Metallurgy (AREA)

Claims (6)

  1. Composition de matériau réactif à haute densité comprenant,
    A) au moins deux métaux de groupe 4 séparés, présents dans la plage allant de 40 à 90 % en poids, dans laquelle au moins l'un des métaux du groupe 4 est du hafnium, dans laquelle l'hafnium est présent dans la plage de 15 % à 51 %.
    B) au moins un élément d'alliage, choisi parmi le bore ou le carbone présent dans la plage allant de 5 à 55 % en poids.
    C) dans laquelle les au moins deux métaux du groupe 4 sont encapsulés par un liant fluoroélastomère, présent dans la plage de 1 à 10 % en poids.
    dans laquelle lesdits réactifs et auxiliaires de pressage facultatifs sont présents dans sensiblement 100 % en poids.
  2. Composition selon la revendication 1, dans laquelle le hafnium de carbone est présent dans la plage de 15 à 30 % en poids.
  3. Composition selon la revendication 1 ou 2, dans laquelle ledit liant fluoroélastomère est présent dans la plage allant de 3 à 7 % en poids.
  4. Composition de matériau réactif à haute densité selon l'une quelconque des revendications précédentes, dans laquelle ladite composition consolidée comprend une masse volumique efficace en fraction pondérale supérieure à 5,40.
  5. Munition comprenant une partie de la composition consolidée selon l'une quelconque des revendications précédentes.
  6. Munition selon la revendication 5, dans laquelle la partie comprend tous, sensiblement tout ou partie d'un projectile, une coque, un boîtier, un revêtement de charge façonné, des fragments naturels, forcée ou préformés ou un mortier.
EP16702765.5A 2015-01-27 2016-01-26 Matériaux réactifs Active EP3250539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1501336.0A GB2534573A (en) 2015-01-27 2015-01-27 Reactive materials
PCT/GB2016/050161 WO2016120605A1 (fr) 2015-01-27 2016-01-26 Matériaux réactifs

Publications (2)

Publication Number Publication Date
EP3250539A1 EP3250539A1 (fr) 2017-12-06
EP3250539B1 true EP3250539B1 (fr) 2024-04-17

Family

ID=52673995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16702765.5A Active EP3250539B1 (fr) 2015-01-27 2016-01-26 Matériaux réactifs

Country Status (6)

Country Link
US (1) US20170355647A1 (fr)
EP (1) EP3250539B1 (fr)
AU (1) AU2016211060B2 (fr)
CA (1) CA2974264A1 (fr)
GB (1) GB2534573A (fr)
WO (1) WO2016120605A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11453697B1 (en) 2015-08-13 2022-09-27 Merck Sharp & Dohme Llc Cyclic di-nucleotide compounds as sting agonists
UA123701C2 (uk) 2015-08-13 2021-05-19 Мерк Шарп І Доум Корп. Циклічні динуклеотидні сполуки як агоністи sting
US10422613B2 (en) * 2016-12-01 2019-09-24 Battelle Memorial Institute Illuminants and illumination devices
US11466047B2 (en) 2017-05-12 2022-10-11 Merck Sharp & Dohme Llc Cyclic di-nucleotide compounds as sting agonists
WO2019125974A1 (fr) 2017-12-20 2019-06-27 Merck Sharp & Dohme Corp. Composés dinucléotidiques cycliques utilisés comme agonistes sting

Family Cites Families (14)

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FR2309493A1 (fr) * 1973-03-15 1976-11-26 France Etat Substances pyrotechniques pulverulentes ameliorees et leur procede d'obtention
US4381692A (en) * 1977-05-11 1983-05-03 Quantic Industries, Inc. Method of making an incendiary munition
US4131498A (en) * 1978-01-25 1978-12-26 Teledyne Industries, Inc. Metallic sponge incendiary compositions
DE3164190D1 (en) * 1980-10-31 1984-07-19 Oerlikon Buehrle Ag Incendiary compound comprising a metallic fuel from group iva of the periodic system
US6010580A (en) * 1997-09-24 2000-01-04 California Institute Of Technology Composite penetrator
US6962634B2 (en) * 2002-03-28 2005-11-08 Alliant Techsystems Inc. Low temperature, extrudable, high density reactive materials
US7977420B2 (en) * 2000-02-23 2011-07-12 Alliant Techsystems Inc. Reactive material compositions, shot shells including reactive materials, and a method of producing same
US20050199323A1 (en) * 2004-03-15 2005-09-15 Nielson Daniel B. Reactive material enhanced munition compositions and projectiles containing same
US6691622B2 (en) * 2000-03-21 2004-02-17 General Sciences, Inc. Reactive projectiles, delivery devices therefor, and methods for their use in the destruction of unexploded ordnance
DE10140600A1 (de) * 2001-08-18 2003-03-06 Rheinmetall W & M Gmbh Brandsatz für ein flügelstabilisiertes Wuchtgeschoß
FR2867469A1 (fr) * 2004-03-15 2005-09-16 Alliant Techsystems Inc Compositions reactives contenant un metal, et leur procede de production
WO2007086830A2 (fr) * 2005-01-10 2007-08-02 Nanotechnologies, Inc. Projectiles a energie cinetique dotes de nanoparticules
US8092623B1 (en) * 2006-01-31 2012-01-10 The United States Of America As Represented By The Secretary Of The Navy Igniter composition, and related methods and devices
DE102010053694A1 (de) * 2010-12-08 2012-06-14 Diehl Bgt Defence Gmbh & Co. Kg Pyrotechnische Scheinzielwirkmasse für Infrarotscheinziele

Also Published As

Publication number Publication date
GB201501336D0 (en) 2015-03-11
US20170355647A1 (en) 2017-12-14
AU2016211060B2 (en) 2019-08-22
CA2974264A1 (fr) 2016-08-04
EP3250539A1 (fr) 2017-12-06
AU2016211060A1 (en) 2017-08-03
GB2534573A (en) 2016-08-03
WO2016120605A1 (fr) 2016-08-04

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