WO1999060327A1 - Blindage composite - Google Patents

Blindage composite Download PDF

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Publication number
WO1999060327A1
WO1999060327A1 PCT/IL1999/000260 IL9900260W WO9960327A1 WO 1999060327 A1 WO1999060327 A1 WO 1999060327A1 IL 9900260 W IL9900260 W IL 9900260W WO 9960327 A1 WO9960327 A1 WO 9960327A1
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WO
WIPO (PCT)
Prior art keywords
pellets
plate
composite armor
armor plate
majority
Prior art date
Application number
PCT/IL1999/000260
Other languages
English (en)
Inventor
Michael Cohen
Original Assignee
Michael Cohen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11071519&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1999060327(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Michael Cohen filed Critical Michael Cohen
Priority to AU38454/99A priority Critical patent/AU3845499A/en
Priority to EP99921114.7A priority patent/EP1080337B2/fr
Priority to DE69938965T priority patent/DE69938965D1/de
Priority to CA002331529A priority patent/CA2331529C/fr
Publication of WO1999060327A1 publication Critical patent/WO1999060327A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix

Definitions

  • the present invention relates to composite armor plates and panels. More particularly, the invention relates to an armored plate which may be worn to provide the user with lightweight ballistic protection, as well as to armored plates for providing ballistic protection for light and heavy mobile equipment and vehicles against high-speed projectiles or fragments.
  • a composite armor plate for absorbing and dissipating kinetic energy from high velocity, armor-piercing projectiles, said plate comprising a single internal layer of high density ceramic pellets which are directly bound and retained in plate form by a solidified material such that the pellets are bound in a plurality of superposed rows, characterized in that the pellets have an Al 2 0 3 content of at least 85%, preferably at least 93%, and a specific gravity of at least 2.5, the majority of the pellets each have at least one axis in the range of about 3-12 mm, and are bound by said solidified material in a single internal layer of superposed rows, wherein a majority of each of said pellets is in direct contact with at least 4 adjacent pellets, the total weight of said plate
  • a composite armor plate for absorbing and dissipating kinetic energy from high velocity, armor-piercing projectiles, said plate comprising a single internal layer of high density ceramic pellets which are directly bound and retained in plate form by a solidified material such that the pellets are bound in a plurality of adjacent rows, characterized in that the pellets have an Al 2 0 3 content of at least 93% and a specific gravity of at least 2.5, the majority of the pellets each have at least one axis of at least 12 mm length and are bound by said solidified material in a single internal layer of adjacent rows, wherein a majority of each of said pellets is in direct contact with at least 4 adjacent pellets, and said solidified material and said plate are elastic.
  • a ceramic body for deployment in a composite armor panel said body being substantially cylindrical in shape, with at least one convexly curved end face, wherein the ratio D/R between the diameter D of said cylindrical body and the radius R of curvature of said at least one convexly curved end face is at least 0.64:1.
  • the first consideration is weight.
  • Protective armor for heavy but mobile military equipment such as tanks and large ships, is known.
  • Such armor usually comprises a thick layer of alloy steel, which is intended to provide protection against heavy and explosive projectiles.
  • reduction of weight of armor, even in heavy equipment is an advantage since it reduces the strain on all the components of the vehicle.
  • such armor is quite unsuitable for light vehicles such as automobiles, jeeps, light boats, or aircraft, whose performance is compromised by steel panels having a thickness of more than a few millimeters, since each millimeter of steel adds a weight factor of 7.8 kg/m 2 .
  • Armor for light vehicles is expected to prevent penetration of bullets of any type, even when impacting at a speed in the range of 700 to 1000 meters per second.
  • Due to weight constraints it is difficult to protect light vehicles from high caliber armor-piercing projectiles, e.g. of 12.7 and 14.5 mm, since the weight of standard armor to withstand such projectile is such as to impede the mobility and performance of such vehicles.
  • a second consideration is cost. Overly complex armor arrangements, particularly those depending entirely on synthetic fibers, can be responsible for a notable proportion of the total vehicle cost, and can make its manufacture non-profitable.
  • a third consideration in armor design is compactness.
  • a thick armor panel including air spaces between its various layers, increases the target profile of the vehicle.
  • a fourth consideration relates to ceramic plates used for personal and light vehicle armor, which plates have been found to be vulnerable to damage from mechanical impacts caused by rocks, falls, etc.
  • Fairly recent examples of armor systems are described in U.S. Patent No. 4,836,084, disclosing an armor plate composite including a supporting plate consisting of an open honeycomb structure of aluminium; and U.S. Patent No. 4,868,040, disclosing an antiballistic composite armor including a shock-absorbing layer.
  • U.S. Patent 4,529,640 disclosing spaced armor including a hexagonal honeycomb core member.
  • Ceramic materials are nonmetallic, inorganic solids having a crystalline or glassy structure, and have many useful physical properties, including resistance to heat, abrasion and compression, high rigidity, low weight in comparison with steel, and outstanding chemical stability. Such properties have long drawn the attention of armor designers, and solid ceramic plates, in thicknesses ranging from 7 mm. for personal protection to 30 mm. for heavy military vehicles, are commercially available for such use.
  • a further known problem with such clothing is that even when it succeeds in stopping a projectile the user may suffer injury due to indentation of the vest into the body, caused by too small a body area being impacted and required to absorb the energy of a bullet.
  • a common problem with prior art ceramic armor concerns damage inflicted on the armor structure by a first projectile, whether stopped or penetrating. Such damage weakens the armor panel, and so allows penetration of a following projectile, impacting within a few centimeters of the first.
  • the present invention is therefore intended to obviate the disadvantages of prior art ceramic armor, and in a first embodiment to provide an armor plate which is effective against small-caliber fire-arm projectiles, yet is of light weight, i.e,
  • the present invention provides an armor plate which is effective against a full range of armor-piercing projectiles from 5.56 mm and even up to 30 mm, as well as from normal small-caliber fire-arm projectiles, yet is of light weight, i.e., having a weight of less than 185 kg/m 2 . even for tne heavier armor provided for dealing with 25 and 30 mm projectiles.
  • a further object of the invention is to provide an armor plate or panel which is particularly effective in arresting a plurality of armor-piercing projectiles impacting upon the same general area of the panel.
  • the armor plates described in US Patent 5,763,813 and European application 98301769.0 are made using ceramic pellets made substantially entirely of aluminum oxide.
  • the ceramic bodies are of substantially cylindrical shape having at least one convexly-curved end-face, and are preferably made of aluminium oxide.
  • the improved properties of the plates described in the above patent applications is as much a function of the configuration of the pellets, which are of regular geometric form (for example, the pellets may be spherical or ovoidal, or of regular geometric cross-section, such as square, hexagonal, octagonal, or circular), said panels and their arrangement as a single internal layer of pellets bound by an elastic solidified material, wherein each of a majority of said pellets is in direct contact with at least four adjacent pellets in the same layer to provide mutual lateral confinement therebetween.
  • composite armor plates superior to those available in the prior art can be manufactured using glass pellets which have a specific gravity of only 2, or pellets made of sintered refractory materials or ceramic materials having a specific gravity equal to or below that of aluminium oxide, e.g., boron carbide with a specific gravity of 2.45, silicon carbide with a specific gravity of 3.2 and silicon aluminum oxynitride with a specific gravity of about 3.2.
  • glass pellets which have a specific gravity of only 2
  • pellets made of sintered refractory materials or ceramic materials having a specific gravity equal to or below that of aluminium oxide e.g., boron carbide with a specific gravity of 2.45, silicon carbide with a specific gravity of 3.2 and silicon aluminum oxynitride with a specific gravity of about 3.2.
  • sintered oxides, nitrides, carbides and borides of magnesium, zirconium, tungsten, molybdium, titanium and silica can be used and especially preferred for use in the present invention are pellets selected from the group consisting of glass, boron carbide, titanium dibo de, silicon carbide, magnesium oxide, silicon aluminum oxynitride in both its alpha and beta forms and mixtures thereof.
  • the present invention provides a composite armor plate for absorbing and dissipating kinetic energy from high velocity projectiles, said plate comprising a single internal layer of pellets which are directly bound and retained in plate form by a solidified material such that the pellets are bound in a plurality of adjacent rows, characterized in that the pellets have a specific gravity of at least 2 and are made of a material selected from the group consisting of glass, sintered refractory material, ceramic material which does not contain aluminium oxide and ceramic material having an aluminium oxide content of not more than 80%, the majority of the pellets each have at least one axis of at least 3 mm length and are bound by said solidified material in said single internal layer of adjacent rows such that each of a majority of said pellets is in direct contact with at least 4 adjacent pellets in the same layer to provide mutual lateral confinement therebetween, said pellets each have a substantially regular geometric form and said solidified material and said plate are elastic.
  • At least a majority of said pellets have at least one convexly-curved end face oriented to substantially face in the direction of an outer impact receiving major surface of said plate, although pellets with flat or even concavely-curved end faces can also be used even though the same have been found to be less effective.
  • the majority of the pellets each have at least one axis having a length in the range of about 6-19 mm, and the
  • the majority of said pellets each have at least one axis having a length in the range of from about 20 to 75 mm
  • each of a majority of said pellets is in direct contact with at least six adjacent pellets.
  • said pellets are spherical.
  • said pellets each have a major axis and said pellets are arranged with their major axes substantially parallel to each other and oriented substantially perpendicularly relative to said outer impact-receiving major surface of said panel.
  • said pellets are other than cylind ⁇ cal bodies having at least one convexly curved end face, wherein the ratio D/R between the diameter D of said cylindrical body and the radius R of curvature of said at least one convexly curved end face is at least 0.64:1.
  • the solidified material can be any suitable material which retains elasticity upon hardening at the thickness used, such as aluminium, epoxy, a thermoplastic polymer such as polycarbonate, or a thermoset plastic, thereby allowing curvature of the plate without cracking to match curved surfaces to be protected, including body surfaces, as well as elastic reaction of the plate to incoming projectiles to allow increased contact force between adjacent pellets at the point of impact.
  • suitable material which retains elasticity upon hardening at the thickness used, such as aluminium, epoxy, a thermoplastic polymer such as polycarbonate, or a thermoset plastic, thereby allowing curvature of the plate without cracking to match curved surfaces to be protected, including body surfaces, as well as elastic reaction of the plate to incoming projectiles to allow increased contact force between adjacent pellets at the point of impact.
  • the elasticity of the material used in preferred embodiments of the present invention serves, to a certain extent, to increase the probability that a projectile will simultaneously impact several pellets, thereby increasing the efficiency of the stopping power of the plate of the present invention.
  • a multi-layered armor panel comprising an outer, impact-receiving layer formed by a composite armor plate as hereinbefore defined for deforming and shattering an impacting high velocity projectile; and an inner layer adjacent to said outer layer and, comprising an elastic material for absorbing the remaining kinetic energy from said fragments.
  • Said elastic material will be chosen according to cost and weight considerations and can be made of any suitable material, such as aluminium, titanium or woven or non-woven textile material.
  • the inner layer adjacent to said outer layer comprises a tough woven textile material for causing an asymmetric deformation of the remaining fragments of said projectile and for absorbing the remaining kinetic energy from said fragments, said multi-layered panel being capable of stopping three projectiles fired sequentially at a triangular area of said multi-layered panel, wherein the height of said triangle is substantially equal to three times the length of the axis of said pellets.
  • composite armor plate comprising a mass of spherical ceramic balls distributed in an aluminium alloy matrix is known in the prior art.
  • prior art composite armor plate suffers from one or more serious disadvantages, making it difficult to manufacture and less than entirely suitable for the purpose of defeating metal projectiles.
  • the ceramic balls are coated with a binder material containing ceramic particles, the coating having a thickness of between 0.76 and 1.5 and being provided to help protect the ceramic cores from damage due to thermal shock when pouring the molten matrix material during manufacture of the plate.
  • the coating serves to separate the harder ceramic cores of the balls from each other, and will act to dampen the moment of energy which is transferred and hence shared between the balls in response to an impact from a bullet or other projectile. Because of this and also because the material of the coating is inherently less hard than that of the ceramic cores, the stopping power of a plate constructed as described in said patent is not as good, weight for weight, as that of a plate in accordance with the present invention, in which each of the pellets is in direct contact with at least four and preferably six adjacent pellets.
  • U.S. Patent 3,705,558 discloses a lightweight armor plate comprising a layer of ceramic balls.
  • the ceramic balls are in contact with each other and leave small gaps for entry of molten metal.
  • the ceramic bails are encased in a stainless steel wire screen; and in another embodiment, the composite armor is manufactured by adhering nickel-coated alumina spheres to an aluminium alloy plate by means of a polysulfide adhesive.
  • a composite armor plate as described in this patent is difficult to manufacture because the ceramic spheres may be damaged by thermal shock arising from molten metal contact. The ceramic spheres are also sometimes displaced during casting of molten metal into interstices between the spheres.
  • U.S. Patents 4,534,266 and 4,945,814 propose a network of interlinked metal shells to encase ceramic inserts during casting of molten metal. After the metal solidifies, the metal shells are incorporated into the composite armor. It has been determined, however, that such a network of interlinked metal shells substantially increases the overall weight of the armored panel and decreases the stopping power thereof.
  • U.S. Patent 3,705,558 suggests and teaches an array of ceramic balls disposed in contacting pyramidal relationship, which arrangement also substantially increases the overall weight of the armored panel and decreases the stopping power thereof, due to a billiard-like effect upon impact.
  • U.S. Patents 3,523,057 and 5,134,725 there are described further armored panels incorporating ceramic and glass balls; however, said panels are flexible and it has been found that the flexibility of said panels substantially reduces their stopping strength upon impact, since the force of impact itself causes a flexing of said panels and a reduction of the supporting effect of adjacent constituent bodies on the impacted constituent body, due to the arrangement thereof in said patent.
  • Patent 5,134,725 is limited to an armor plate having a plurality of constituent bodies of glass or ceramic material which are arranged in at least two superimposed layers, which arrangement is similar to that seen in US Patent 3,705,558.
  • reference to Figures 3 and 4 of said patent show that pellets of a first layer do not contact pellets of the same layer and are only in contact with pellets of an adjacent layer and therefore do not benefit from the support of adjacent pellets in the same layer to provide mutual lateral confinement of the pellets, as taught in the present invention.
  • the novel armor of the present invention traps incoming projectiles between several pellets which are held in a single layer in mutual abutting and laterally-confining relationship.
  • the relatively moderate size of the pellets ensures that the damage caused by a first projectile is localized and does not spread to adjoining areas, as in the case of ceramic plates.
  • a major advantage of the novel approach provided by the present invention is that it enables the fabrication of different plates and panels adapted to deal with different challenges, wherein e.g. smaller glass, sintered refractory or ceramic pellets can be used for personal armor and for meeting the challenge of 5.56, 7.62 and 9 mm projectiles, while larger ceramic pellets can be used to deal with foreseen challenges presented by 14.5 mm, 25 mm and even 30 mm armor piercing projectiles.
  • cylindrical pellets having a diameter of 9.5 mm and a height of between 9.5 and 11.6 mm, as well as cylindrical pellets having a diameter of 12.7 mm and a height of between 9.5 and 11.6 mm were more than adequate to deal with projectiles of between 5.56 and 9 mm, when arranged in a plate according to the present invention.
  • spherical glass pellets having a diameter of 10 mm were more than adequate to deal with multi-impacts of soft metal component 5.56 and 7.62 mm projectiles.
  • ceramic pellets having a diameter of 38 mm and a height of between 32 and 75 mm were found to be more than adequate to deal with 20, 25 and even 30 mm armor piercing projectiles when used in a multi-layered armor panel according to the present invention.
  • An incoming projectile may contact the pellet array in one of three ways:
  • the pellets used are either spheres or other regular geometric shapes having at least one convexly-curved end face, said end face being oriented to substantially face in the direction of an outer impact receiving major surface of said plate and this form, when supported in a matrix of pellets, as shown, e.g. in the figures attached hereto, has been found to be significantly better at resisting shattering than other pellet arrangements suggested in the prior art.
  • An additional preferred embodiment according to the present invention is one wherein the ceramic material is SiAION in its alpha structure of Si 6 - Z AI Z 0 Z N 8 .
  • Z in which "z” is a substitution coefficient of Al and 0 in the Si 3 N 4 and the "beta structure" of the formula Me m vaiSi ⁇ 2- (m + n)Alm +n OnN 16 -n, wherein Me is a metal such as Li, Mg, Ca, Y, and lanthanide's, m and n are substitution coefficients and val is the valency of the metal.
  • Fig. 1 is a cross-sectional side view of a first preferred embodiment of a two-layered armor panel according to the invention
  • Figs. 2 is a perspective view of a small section of a second preferred embodiment of an armor panel according to the invention
  • a composite armor plate 10 for absorbing and dissipating kinetic energy from fire-arm projectiles 12 said plate comprising a single internal layer of spherical glass pellets 14, said pellets being arranged in a single layer of adjacent rows, wherein each of a majority of said pellets is in direct contact with at least 4 adjacent pellets (as better seen with regard to the pellets shown in Fig. 2).
  • the entire array of pellets is bound in said single layer of a plurality of adjacent rows by solidified epoxy 16 and said plate 10 is further provided with an inner backing layer 18 made of DYNEEMA® or of similar material, to form a multi-layered armored panel 20.
  • a composite armor plate 22 for absorbing and dissipating kinetic energy from fire-arm projectiles 12 said plate comprising a single internal layer of glass pellets 24 which are substantially cylindrical with at least one convexly-curved end face, said pellets being arranged in a single layer of adjacent rows wherein each of a majority of said pellets 24' is in direct contact with at least 4 adjacent pellets 24".
  • the entire array of pellets is bound in said single layer of a plurality of adjacent rows by solidified epoxy 16, and said plate 22 is further provided with an inner backing layer 18 made of DYNEEMA® or of similar textile material such a backing made of polycarbonate, to form a multi-layered armored panel 26.
  • the nature of the solidified material 16 is selected in accordance with the weight, performance and cost considerations applicable to the intended use of the armor.
  • Armor for land and sea vehicles is suitably made using a metal casting alloy containing at least 80% aluminium.
  • a suitable alloy is Aluminium Association No. 535.0, which combines a high tensile strength of 35,000 kg/in 2 with excellent ductility, having 9% elongation.
  • Further suitable alloys are of the type containing 5% silicon B443.0. These alloys are easy to cast in thin sections; their poor machinability is of little concern in the application of the present invention.
  • An epoxy or other plastic or polymeric material, advantageously fiber-reinforced, is also suitable.
  • Tables 1 and 2 are reproductions of test reports relating to epoxy-bound multi-layer panels as described above with reference to Fig. 1. Each of the panels had dimensions of 14" x 14" and had a backing layer 18 made of DYNEEMA® 10 mm thick..
  • the first panel was impacted by a series of three soft-nosed component 7.62 mm projectiles fired at 0° elevation and at a distance of 50 ft. from the target.
  • the second panel was impacted by a series of six soft-nosed component 5.56 mm projectiles, also fired at 0 elevation and at a distance of 50 ft. from the target.
  • Vel. Screens 6.5 ft. & 9.5 ft. Range to Target : 50.0 ft.
  • Vel. Screens 6.5 ft. & 9.5 ft. Range to Target : 50.0 ft.
  • spherical glass pellets when arranged in a single layer according to the present invention, enable the preparation of a composite armor plate which can withstand multiple impacts in a relatively small area, which multi-impact protection was not available with prior art acre of comparable weight.
  • SiAION is lighter in weight than aluminum oxide and has a surprisingly greater shattering strength, it is ideally suited for use in the composite armor plates of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Braking Arrangements (AREA)
  • Casings For Electric Apparatus (AREA)
  • Glass Compositions (AREA)

Abstract

L'invention concerne un blindage composite (22) servant à absorber et à dissiper l'énergie cinétique de projectiles très rapides et comprenant une couche intérieure unique de billes (24) adhérant et retenues directement les unes aux autres par un matériau solidifié (16), de façon à créer une plaque et à constituer une pluralité de rangées contiguës. Ce blindage est caractérisé par le fait que ces billes (24) possèdent une gravité spécifique d'au moins 2 et sont fabriquées en un matériau sélectionné dans le groupe constitué par du verre, un matériau réfractaire fritté, un matériau céramique ne contenant pas d'oxyde d'aluminium et un matériau céramique possédant une teneur en oxyde d'aluminium non supérieure à 80 %, la majorité de ces billes possédant chacune un axe d'au moins 3 mm de longueur et étant liée par le matériau solidifié dans la couche intérieure unique de rangées contiguës, de sorte que chacune d'une majorité de ces billes (24') est en contact direct avec au moins quatre billes contiguës (24'') de la même couche, de manière à créer un confinement latéral réciproque entre ces billes, lesdites billes présentant chacune une forme géométrique sensiblement régulière, le matériau solidifié et la plaque étant élastiques.
PCT/IL1999/000260 1998-05-19 1999-05-16 Blindage composite WO1999060327A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU38454/99A AU3845499A (en) 1998-05-19 1999-05-16 Composite armor plate
EP99921114.7A EP1080337B2 (fr) 1998-05-19 1999-05-16 Blindage composite
DE69938965T DE69938965D1 (de) 1998-05-19 1999-05-16 Verbundpanzerplatte
CA002331529A CA2331529C (fr) 1998-05-19 1999-05-16 Blindage composite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL124543 1998-05-19
IL12454398A IL124543A (en) 1998-05-19 1998-05-19 Composite armor panel

Publications (1)

Publication Number Publication Date
WO1999060327A1 true WO1999060327A1 (fr) 1999-11-25

Family

ID=11071519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL1999/000260 WO1999060327A1 (fr) 1998-05-19 1999-05-16 Blindage composite

Country Status (7)

Country Link
EP (2) EP0959321A1 (fr)
AT (1) ATE399302T1 (fr)
AU (1) AU3845499A (fr)
CA (1) CA2331529C (fr)
DE (1) DE69938965D1 (fr)
IL (1) IL124543A (fr)
WO (1) WO1999060327A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1166031A1 (fr) 1999-02-09 2002-01-02 Rafael - Armament Development Authority Ltd. Plaque de blindage anti-projectiles
WO2002029351A1 (fr) 2000-10-05 2002-04-11 Michael Cohen Panneau d'armature composite
US7117780B2 (en) 2003-08-26 2006-10-10 Michael Cohen Composite armor plate
EP1910771A1 (fr) 2005-08-04 2008-04-16 Plasan Sasa Ltd. Système de blindage à fonctions multiples
EP1916495A1 (fr) 2006-10-27 2008-04-30 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Blindage transparent
US7383762B2 (en) 2005-04-03 2008-06-10 Michael Cohen Ceramic pellets and composite armor panel containing the same
EP2071272A2 (fr) 2007-12-11 2009-06-17 Michael Cohen Plaque de blindage composite et son procédé d'utilisation
US7603939B2 (en) 2003-10-02 2009-10-20 Michael Cohen Ceramic bodies for armor panel
EP2426454A2 (fr) 2010-09-07 2012-03-07 Michael Cohen Corps en céramique haute densité et blindage composite la comprenant
US8281700B2 (en) 2004-09-08 2012-10-09 Michael Cohen Composite armor plate and ceramic bodies for use therein
CN104175657A (zh) * 2014-08-08 2014-12-03 太仓派欧技术咨询服务有限公司 一种梯度过渡B4C-Al2O3陶瓷柱

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2328285A1 (fr) 2000-12-15 2002-06-15 Gauthier, Alain Blindage anti projectile a charge creuse
US7513186B2 (en) * 2004-03-11 2009-04-07 Plasan-Kibbutz Sasa Ballistic armor
CN110270686A (zh) * 2018-11-22 2019-09-24 无锡银邦防务科技有限公司 一种钛合金/陶瓷复合材料及制备方法

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EP1166031A1 (fr) 1999-02-09 2002-01-02 Rafael - Armament Development Authority Ltd. Plaque de blindage anti-projectiles
WO2002029351A1 (fr) 2000-10-05 2002-04-11 Michael Cohen Panneau d'armature composite
US7117780B2 (en) 2003-08-26 2006-10-10 Michael Cohen Composite armor plate
US7603939B2 (en) 2003-10-02 2009-10-20 Michael Cohen Ceramic bodies for armor panel
US8281700B2 (en) 2004-09-08 2012-10-09 Michael Cohen Composite armor plate and ceramic bodies for use therein
US7383762B2 (en) 2005-04-03 2008-06-10 Michael Cohen Ceramic pellets and composite armor panel containing the same
EP1910771A1 (fr) 2005-08-04 2008-04-16 Plasan Sasa Ltd. Système de blindage à fonctions multiples
EP1916495A1 (fr) 2006-10-27 2008-04-30 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Blindage transparent
EP1916495B1 (fr) * 2006-10-27 2013-12-04 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Blindage transparent
EP2071272A2 (fr) 2007-12-11 2009-06-17 Michael Cohen Plaque de blindage composite et son procédé d'utilisation
EP2426454A2 (fr) 2010-09-07 2012-03-07 Michael Cohen Corps en céramique haute densité et blindage composite la comprenant
US8438963B2 (en) 2010-09-07 2013-05-14 Michael Cohen High density ceramic bodies and composite armor comprising the same
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IL124543A0 (en) 1998-12-06
EP1080337A1 (fr) 2001-03-07
EP0959321A1 (fr) 1999-11-24
ATE399302T1 (de) 2008-07-15
DE69938965D1 (de) 2008-08-07
CA2331529C (fr) 2006-01-24
EP1080337B2 (fr) 2015-02-18
EP1080337B1 (fr) 2008-06-25
CA2331529A1 (fr) 1999-11-25
AU3845499A (en) 1999-12-06
IL124543A (en) 2001-08-26

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