Ceradyne

Last updated
Ceradyne Inc.
Type Public
IndustryIndustrial Equipment & Components
Founded1967 (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] It is traded on the NASDAQ Stock Market.

Contents

Background

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]

Product recall

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]

IMP/ACT

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.

BulletBullet ConstructionMassNote 1VelocityPlate WeightMulti-hit SpacingHits Per Plate (typical)
5.56×45mm M193Ball, lead core55-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/SS109Ball, steel tip, lead core61-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 M995AP, tungsten carbide core52-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 PSBall, steel core122-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 LPSBall, steel core148-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 BZAPI (armor-piercing incendiary), steel core119-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 M80Ball, lead core149-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 M61AP, steel core151-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 APAP, steel core166-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 M993AP, tungsten carbide core127-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.

Related Research Articles

<span class="mw-page-title-main">Ceramic</span> Inorganic, nonmetallic solid prepared by the action of heat

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.

<span class="mw-page-title-main">Bulletproof vest</span> Form of body armour that protects the torso from some 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.

<span class="mw-page-title-main">Chobham armour</span> British-designed composite tank armour

Chobham armour is the informal name of a composite armour developed in the 1960s at the British tank research centre on Chobham Common, Surrey. 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 Interceptor Multi-Threat Body Armor System (IBA) is a bullet-resistant body armor system that was used by the United States Armed Forces during the 2000s, with some limited usage into the mid-2010s. IBA and its design replaced the older standardized fragmentation protective Personnel Armor System for Ground Troops (PASGT) body armor system that was designed in the late 1970s and introduced in the early 1980s.

<span class="mw-page-title-main">Bulletproof glass</span> Transparent material that is particularly resistant to penetration by projectiles

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 34 to 3+12 inches.

<span class="mw-page-title-main">Transparent ceramics</span> Ceramic materials that are optically transparent

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.

<span class="mw-page-title-main">Avon Protection</span> British manufacturing company

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.

<span class="mw-page-title-main">Vehicle armour</span> High-strength plating used to fortify important vehicles against bullets, shells etc.

Military vehicles are commonly armoured to withstand the impact of shrapnel, bullets, shells, rockets, and missiles, protecting the personnel inside from enemy fire. Such vehicles include armoured fighting vehicles like tanks, aircraft, and ships.

<span class="mw-page-title-main">Body armor</span> Protective clothing; armor worn on the body

Body armor, personal armor, armored suit (armoured) or coat of armor, among others, is protective clothing 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.

<span class="mw-page-title-main">Small Arms Protective Insert</span> American military ballistic protection system

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.

<span class="mw-page-title-main">Ballistic plate</span> Protective armoured plate

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.

<span class="mw-page-title-main">Advanced Combat Helmet</span> Worn by army soldiers

The Advanced Combat Helmet (ACH) is the United States Army's current combat helmet, used since the early 2000s. It was developed by the United States Army Soldier Systems Center, the U.S. Army Special Operations Command, and the U.S. Army Research Laboratory to be the next generation of protective combat helmets for use by the American ground forces. The ACH is derived from the Modular Integrated Communications Helmet.

<span class="mw-page-title-main">Ranger Body Armor</span> Military ballistic protection

Ranger Body Armor (RBA) is a US military-issue ballistic vest that was designed for, and used chiefly by, US Army 75th Ranger Regiment operators ("Rangers") in the 1990s and 2000s. The RBA system has since been replaced by other specialized body armor systems adopted by the United States Special Operations Command (USSOCOM).

The Bull is an armored personnel carrier with a v-shaped hull designed in a combined effort between Ceradyne, Ideal Innovations Inc. (I-3), and Oshkosh Corporation in response to the MRAP II competition. "The Bull" is a trade-mark of Ideal Innovations, Inc. (I-3).

<span class="mw-page-title-main">Improved Outer Tactical Vest</span> US Army body armor

The Improved Outer Tactical Vest (IOTV) is an enhanced version of, and a replacement for, the older Outer Tactical Vest (OTV) component of the Interceptor Multi-Threat Body Armor System, as fielded by the United States Army beginning in the mid-2000s. The IOTV is compatible with the Deltoid and Axillary Protector System (DAPS) components, ESAPI, Enhanced Side Ballistic Inserts (ESBI), as well as the OTV's groin protector. It has a flame-resistant standalone shirt, the Army Combat Shirt (ACS), designed specifically for use with the IOTV.

<span class="mw-page-title-main">Improvised vehicle armour</span> Makeshift armour installed on vehicles

Improvised vehicle armour is a form of vehicle armour consisting of protective materials added to a vehicle such as a car, truck, or tank in an irregular and extemporized fashion using available materials. Typically, improvised armour is added in the field and it was not originally part of the design, an official up-armour kit, nor centrally planned and distributed. Improvised armour is used to protect occupants from small arms, crew-served weapons, artillery fire, and mines. Improvised additions have included metal plate, scrap metal, sandbags, concrete, wood, and, since at least the 2000s, Kevlar. These materials vary widely in their ballistic protection.

Ceramic armor is armor used by armored vehicles and in personal armor to resist projectile penetration through its high hardness and compressive strength. In its most basic form, it consists of two primary components: A ceramic layer on the outer surface, called the "strike face," backed up by a ductile fiber reinforced plastic composite or metal layer. The role of the ceramic is to (1) fracture the projectile or deform the projectile nose upon impact, (2) erode and slow down the projectile remnant as it penetrates the shattered ceramic layer, and (3) distribute the impact load over a larger area, which can be absorbed by ductile polymer or metallic backings. Ceramics are often used where light weight is important, as they weigh less than metal alloys for a given degree of resistance. The most common materials are alumina, boron carbide, and, to a lesser extent, silicon carbide.

<span class="mw-page-title-main">Dragon Skin</span> Ballistic vest

Dragon Skin is a type of ballistic vest first-produced by the now-defunct company Pinnacle Armor, and was subsequently manufactured by North American Development Group LLC. The vest manufacturer claimed that it could absorb a high number of bullets because of its unique design involving circular discs that overlapped, similar to scale armor.

<span class="mw-page-title-main">Enhanced Combat Helmet (United States)</span> Combat helmet

The Enhanced Combat Helmet (ECH) is a combat helmet designed in conjunction of a joint program of the United States Marine Corps and United States Army to replace the current combat helmets in use by the U.S. Army, Marines, Navy, and Air Force. Although similar in shape of the Advanced Combat Helmet and its predecessor the Modular Integrated Communications Helmet, the ECH is instead constructed using thermoplastics instead of the ballistic fibers used on previous-generation combat helmets.

<span class="mw-page-title-main">Integrated Head Protection System</span> US Army combat helmet

The Integrated Head Protection System (IHPS) is the United States Army's newest combat helmet, intended to eventually replace the Advanced Combat Helmet and Enhanced Combat Helmet.

References

  1. "About Ceradyne, Inc". Ceradyne, Inc. Archived from the original on 2009-04-13. Retrieved 2009-04-01.
  2. "Official 3M Ceradyne page". 3M's Ceradyne site. 3M Advanced Materials. Retrieved 2014-07-28.
  3. "3M Completes Acquisition of Ceradyne". 3M. 3M. November 29, 2012. Retrieved 28 July 2014.
  4. "Ceradyne Divisions". www.ceradyne.com. Ceradyne, Inc. Archived from the original on 29 July 2014. Retrieved 28 July 2014.
  5. "Ceradyne, Inc. - Advanced Materials Division - 3M United States". www.ceradyne.com.
  6. "Money: A stock caught in the Iraq debate".
  7. 1 2 "Ceradyne - OC Business News - OCRegister.com". Archived from the original on 2008-05-07. Retrieved 2008-07-03.
  8. "Press release". 3M. 3M. November 29, 2012. Retrieved 28 July 2014.
  9. "Avon Rubber Completes Acquisition Of 3M's Ballistic Protection Business". Avon Rubber. Avon Rubber. January 2, 2020. Archived from the original on 17 October 2020. Retrieved 16 October 2020.
  10. "3M's military armor business fetches $91 million in sale". Minneapolis/St. Paul Business Journal. 2 January 2020. Retrieved 17 October 2020.
  11. Newcomb, Alyssa (2012-11-24). "Special Ops Body Armor Recalled After Safety Defects Found". abcnews.go.com. Retrieved 2012-11-25.
  12. Curtis, Rob (November 24, 2012). "Body armor used by special ops troops recalled". USA Today. Retrieved November 25, 2012. the SPEAR Generation III armor plates, as they're known, 'display a latent delamination defect,'
  13. "Ceradyne Armor Brochure" (PDF). Ceradyne. Archived (PDF) from the original on 4 February 2007. Retrieved 6 April 2020.
  14. "CERADYNE INC - 10-K Annual Report - 12/31/2002". getfilings.com. Retrieved 12 June 2020.
  15. "Questions Surround SOF Body Armor Recall". Military.com. 24 November 2012. Retrieved 12 June 2020.
  16. "STATEMENT BY GENERAL PAUL J. KERN COMMANDING GENERAL U.S. ARMY MATERIEL COMMAND BEFORE THE COMMITTEE ON ARMED SERVICES SUBCOMMITTEE ON EMERGING THREATS AND CAPABILITIES UNITED STATES SENATE SESSION, 108TH CONGRESS ON THE DEFENSE LABORATORIES AND S&T OVERVIEW UNITED STATES ARMY MARCH 31, 2003" (PDF). Global Security. U.S. Congress. Retrieved 6 April 2020.
  17. Scarborough, Rowan. "Tactical advantage: Russian military shows off impressive new gear". The Washington Times. Retrieved 12 June 2020.
  18. "Multi Hit III++ Hard Armor Plate - MH3HAP-B4C". Paraclete Armor. Archived from the original on 2005-02-16. Retrieved 6 April 2020.
  19. "Miscellaneous gear and equipment". beta.sam.gov. U.S. General Services Administration. Retrieved 12 June 2020.

http://www.marketwatch.com/story/3m-buying-ceradyne-for-43-premium-2012-10-01