Company type | Public |
---|---|
Industry | Industrial Equipment & Components |
Founded | 1967 |
Headquarters | 3M headquarters, St. Paul, Minnesota , United States |
Area served | Worldwide |
Divisions | Advanced Ceramic Operations Ceradyne Armor Systems, Inc. Ceradyne Boron Products LLC Ceradyne Canada ULC ESK Ceramics Minco, Inc. Thermo Materials Tianjin Technical Ceramics SemEquip, Inc. Semicon Associates Vehicle Armor Systems [1] |
Website | www.ceradyne.com |
Ceradyne, Incorporated is a wholly owned subsidiary of the British company, Avon Rubber. Ceradyne, Inc. is a manufacturer of advanced ceramic systems and components and involved in many technical industries including nuclear power, oil and gas, solar energy, automotive, and defense. [2]
Ceradyne was founded in 1967 [3] and in late 2004, the company added new product lines by acquiring ESK Ceramics of Kempten, Germany. [4]
In addition to producing ceramic components for industrial processes such as silicon foundries and ceramic fuel pellets for nuclear reactors, Ceradyne researched and produced varieties of ballistic armour for both personnel and vehicles. [5] The ceramic armor was lighter than regular steel plate armor facilitating greater mobility. On September 16, 2007, the company was selling 25,000 sets of armor a month to the Pentagon. [6]
In December 2007, Ceradyne's lightweight armor was approved by the Army for use on military vehicles. Oshkosh Truck produced the first of these armored vehicles using the armor on HEMETT crew cabs. [7] Ceradyne was also the producer of ceramic Enhanced Small Arms Protective Inserts (E-SAPI) for the US Army's Interceptor body armor, and the blast-proof components of the Ceradyne BULL MRAP/MMPV vehicle project.
In January 2008, the company also received an order for $9.6 million worth of body armor from UNICOR (Federal Prison Industries Inc.), which provided jobs and job training to inmates in US federal prisons. [7]
On November 28, 2012, Ceradyne, Inc. was fully acquired by 3M becoming a wholly owned subsidiary of 3M. [8]
On January 2, 2020, Ceradyne, Inc.'s advanced ballistic protection business and the Ceradyne brand were acquired by Avon Rubber. [9] [10]
In November 2012 thousands of SPEAR Generation III ballistic armor plates manufactured by Ceradyne for issue to United States Special Operations troops were recalled due to "safety defects". An analysis by the Department of Defense discovered the flawed plates. Defects were identified in less than five percent of plates tested according to United States Special Operations Command (USSOCOM). USSOCOM says "No one has been killed or wounded as a result of the defective body armor". [11] [12]
The following table [13] displays the capabilities of Ceradyne's IMP/ACT (Improved Multihit Protection/Advanced Composite Technology) [14] series of plates. IMP/ACT plates use a stainless steel crack arrestor [15] embedded between the strike face and backer to contain cracking to the immediate site of a bullet impact; [16] the newest GOST 6A-rated GRANIT (ГРАНИТ) plates currently in service with the Russian Armed Forces use a similar crack arrestor made of titanium. [17] This table is intended to exemplify the performance improvements that can be attained through the use of a crack arrestor, which enables a monolithic plate to match the multi-hit performance of non-monolithic models at a significantly lower weight.
Bullet | Bullet Construction | MassNote 1 | Velocity | Plate Weight | Multi-hit Spacing | Hits Per Plate (typical) |
---|---|---|---|---|---|---|
5.56×45mm M193 | Ball, lead core | 55-grain (3.6 g) | 3,300-foot-per-second (1,000 m/s) | 3.7-pound (1.7 kg) | 1–2-inch (2.5–5.1 cm) | 12 |
5.56×45mm M855/SS109 | Ball, steel tip, lead core | 61-grain (4.0 g) | 3,300-foot-per-second (1,000 m/s) | 3.7-pound (1.7 kg) | 1–2-inch (2.5–5.1 cm) | 12 |
5.56×45mm M995 | AP, tungsten carbide core | 52-grain (3.4 g) | 3,280-foot-per-second (1,000 m/s) | 3.9-pound (1.8 kg) | 2–3-inch (5.1–7.6 cm) | 8 |
7.62×39mm PS | Ball, steel core | 122-grain (7.9 g) | 2,400-foot-per-second (730 m/s) | 3.7-pound (1.7 kg) | 3–4-inch (7.6–10.2 cm) | 8 |
7.62×54mmR LPS | Ball, steel core | 148-grain (9.6 g) | 2,800-foot-per-second (850 m/s) | 4.2-pound (1.9 kg) | 3–4-inch (7.6–10.2 cm) | 6 |
7.62×39mm BZ | API (armor-piercing incendiary), steel core | 119-grain (7.7 g) | 2,400-foot-per-second (730 m/s) | 4.2-pound (1.9 kg) [18] [19] | 3–4-inch (7.6–10.2 cm) | 6 |
7.62×51mm M80 | Ball, lead core | 149-grain (9.7 g) | 2,850-foot-per-second (870 m/s) | 3.7-pound (1.7 kg) | 4–5-inch (10–13 cm) | 6 |
7.62×51mm M61 | AP, steel core | 151-grain (9.8 g) | 2,850-foot-per-second (870 m/s) | 4.9-pound (2.2 kg) | 3–4-inch (7.6–10.2 cm) | 4 |
.30-06 Springfield M2 AP | AP, steel core | 166-grain (10.8 g) | 2,850-foot-per-second (870 m/s) | 5.2-pound (2.4 kg) | 3–4-inch (7.6–10.2 cm) | 3 |
7.62×51mm M993 | AP, tungsten carbide core | 127-grain (8.2 g) | 3,120-foot-per-second (950 m/s) | 5.8-pound (2.6 kg) | 5–6-inch (13–15 cm) | 3 |
Note 1: 0.8-square-foot (0.074 m2) size medium, triple curve, complete armor plate weight (including spall cover) required to protect against threat at stated multi-hit spacing when used in conjunction with NIJ IIIA soft armor vest.
A ceramic is any of the various hard, brittle, heat-resistant, and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcelain, and brick.
Composite armour is a type of vehicle armour consisting of layers of different materials such as metals, plastics, ceramics or air. Most composite armours are lighter than their all-metal equivalent, but instead occupy a larger volume for the same resistance to penetration. It is possible to design composite armour stronger, lighter and less voluminous than traditional armour, but the cost is often prohibitively high, restricting its use to especially vulnerable parts of a vehicle. Its primary purpose is to help defeat high-explosive anti-tank (HEAT) projectiles.
A bulletproof vest, also known as a ballistic vest or a bullet-resistant vest, is an item of body armour that helps absorb the impact and reduce or stop penetration to the torso by firearm-fired projectiles and fragmentation from explosions. The vest may come in a soft form, as worn by many police officers, prison officers, security guards, and some private citizens, used to protect against stabbing attacks or light projectiles, or hard form, using metallic or para-aramid components. Soldiers and police tactical units wear hard armour, either in conjunction with soft armour or alone, to protect against rifle ammunition or fragmentation.
Chobham armour is the informal name of a composite armour developed in the 1960s at the Military Vehicles and Engineering Establishment, a British tank research centre on Chobham Lane in Chertsey. The name has since become the common generic term for composite ceramic vehicle armour. Other names informally given to Chobham armour include Burlington and Dorchester. Special armour is a broader informal term referring to any armour arrangement comprising sandwich reactive plates, including Chobham armour.
The BMP-3 is a Soviet and Russian infantry fighting vehicle, successor to the BMP-1 and BMP-2. The abbreviation BMP stands for Boevaya Mashina Pekhoty.
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Bulletproof glass, ballistic glass, transparent armor, or bullet-resistant glass is a strong and optically transparent material that is particularly resistant to penetration by projectiles. Like any other material, it is not completely impenetrable. It is usually made from a combination of two or more types of glass, one hard and one soft. The softer layer makes the glass more elastic, so that it can flex instead of shatter. The index of refraction for all of the glasses used in the bulletproof layers must be almost the same to keep the glass transparent and allow a clear, undistorted view through the glass. Bulletproof glass varies in thickness from 3⁄4 to 3+1⁄2 inches.
Many ceramic materials, both glassy and crystalline, have found use as optically transparent materials in various forms from bulk solid-state components to high surface area forms such as thin films, coatings, and fibers. Such devices have found widespread use for various applications in the electro-optical field including: optical fibers for guided lightwave transmission, optical switches, laser amplifiers and lenses, hosts for solid-state lasers and optical window materials for gas lasers, and infrared (IR) heat seeking devices for missile guidance systems and IR night vision. In commercial and general knowledge domains, it is commonly accepted that transparent ceramics or ceramic glass are varieties of strengthened glass, such as those used for the screen glass on an iPhone.
Personnel Armor System for Ground Troops is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor Body Armor (IBA) respectively.
Avon Protection plc is a British company that specialises in the engineering and manufacturing of respiratory protection equipment for military, law enforcement and fire personnel. Its corporate headquarters are 3 km (1.9 mi) south of Melksham in Wiltshire, England, at the Hampton Park West development. It is listed on the London Stock Exchange.
Body armor, personal armor, armored suit (armoured) or coat of armor, among others, is armor for a person's body: protective clothing or close-fitting hands-free shields designed to absorb or deflect physical attacks. Historically used to protect military personnel, today it is also used by various types of police, private security guards, or bodyguards, and occasionally ordinary citizens. Today there are two main types: regular non-plated body armor for moderate to substantial protection, and hard-plate reinforced body armor for maximum protection, such as used by combatants.
The Small Arms Protective Insert (SAPI) is a ceramic ballistic plate used by the United States Armed Forces. It was first used in the Ranger Body Armor and Interceptor Body Armor, both are ballistic vests. It is now also used in the Improved Outer Tactical Vest as well as the Modular Tactical Vest, in addition to commercially available "plate carriers". The Kevlar Interceptor vest itself is designed to stop projectiles up to and including 9×19mm Parabellum submachine gun rounds, in addition to fragmentation. To protect against higher-velocity rifle rounds, SAPI plates are needed.
A ballistic plate, also known as an armour plate, is a protective armoured plate inserted into a carrier or bulletproof vest, that can be used stand-alone, or in conjunction with other armour. "Hard armour" usually denotes armour that uses ballistic plates.
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the SPEAR Generation III armor plates, as they're known, 'display a latent delamination defect,'
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