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Extremely hard ceramic compound
Boron carbide (chemical formula approximately B4C) is an extremely hard boron–carbon ceramic, a covalent material used in tank armor, bulletproof vests
Boron_carbide
Chemical element with atomic number 5 (B)
the mineral sodium borate, and the ultra-hard crystals of boron carbide and boron nitride. Boron is synthesized entirely by cosmic ray spallation and supernovas
Boron
Inorganic compound group
a carbide usually describes a compound composed of carbon and a metal. In metallurgy, carbiding or carburizing is the process for producing carbide coatings
Carbide
Material with Vickers hardness exceeding 40 gigapascals
Greim, Jochen; Schwetz, Karl A. (2005). "Boron Carbide, Boron Nitride, and Metal Borides". Boron Carbide, Boron Nitride, and Metal Borides, in Ullmann's
Superhard_material
Wide-bandgap semiconductor and abrasion-resistant ceramic
fracture toughness. Like other hard ceramics (namely alumina and boron carbide), silicon carbide is used in composite armor (e.g. Chobham armor), and in ceramic
Silicon_carbide
Boron carbides are boron–carbon compounds. α-tetragonal boron is a boron-rich isotropic boron carbide (B50C2). Borafullerenes are a class of heterofullerenes
Boron_carbides
Protective clothing; armor worn on the body
Negrych, "Method of manufacturing boron carbide armor tiles", issued 1989-04-25 Rose, Lisa. "Application of Boron Carbide Ceramics in Body Armor". Precise
Body_armor
Any chemical compound having at least one boron atom
completely of boron atoms, or with varying numbers of carbon heteroatoms. Organoboron chemicals have been employed in uses as diverse as boron carbide (see below)
Boron_compounds
Refractory compound of boron and nitrogen with formula BN
produced on an industrial level by Union Carbide and Carborundum Universal. In 1957, the cubic form of boron nitride (c-BN) was synthesised by Robert
Boron_nitride
British-designed composite tank armour
diamond composite. Of these boron carbide is the hardest and lightest, but also the most costly and brittle. Boron carbide composites are today favoured
Chobham_armour
Device used to regulate the power of a nuclear reactor
Alloys or compounds may also be used, such as high-boron steel, silver-indium-cadmium alloy, boron carbide, zirconium diboride, titanium diboride, hafnium
Control_rod
Defunct research facility of the United States Army
determined that the national production capacity of boron carbide was inadequate. The development of boron carbide composite armor progressed rapidly from laboratory
Materials Technology Laboratory
Materials_Technology_Laboratory
Armor used by armored vehicles and in personal armor
resistance. The most common materials are alumina, boron carbide, and, to a lesser extent, silicon carbide. Tests as early as 1918 demonstrated the potential
Ceramic_armor
Type of refractory ceramics
Boron carbide must be subjected to grinding prior to the boron carbide reduction in order to promote oxide reduction and diffusion processes. Boron carbide
Ultra-high temperature ceramic
Ultra-high_temperature_ceramic
Chemical compound
4-dihydroxystyrene. The reaction of boron carbide with bromine at temperatures above 300 °C leads to the formation of boron tribromide. The product can be
Boron_tribromide
Hard, dense and stiff chemical compound
only with abrasives of superior hardness such as cubic boron nitride and diamond. Tungsten carbide tools can be operated at cutting speeds much higher than
Tungsten_carbide
oxide), zirconia (zirconium dioxide), silicon nitride, silicon carbide, or boron carbide. Ceramic spray nozzles are used in applications that require high
Ceramic_spray_nozzle
Class of chemical compounds
Barbara (2019-02-15). "Synthesis and Characterization of Li-containing Boron Carbide r -Li~1B13C2". Zeitschrift für anorganische und allgemeine Chemie. 645
Boride_carbide
Chemical compound
Pressureless sintering of ZrB2 is possible with sintering additives such as boron carbide and carbon which react with the surface oxides to increase the driving
Zirconium_diboride
Soviet ballistic vest
6B5-15 - Assault variant. 13 mm ADU 14.20.00.000 (АДУ 14.20.00.000) boron carbide ceramic plates on the front and back. Weighs 11.5 kg. 6B5-16 - General
6B5_"Ulej"
Pyrotechnical composition
grit such as boron carbide (in a modified formulation given as 70% KClO3, 19% red phosphorus, 3% sulfur, 3% chalk, and 5% boron carbide by weight), Armstrong's
Armstrong's_mixture
Type of Soviet nuclear power reactor
a water-filled space between the graphite and the absorber), and a boron carbide neutron absorber section. The role of the graphite section, known as
RBMK
Inorganic, nonmetallic solid prepared by the action of heat
rounds) and kinetic energy penetrators. Ceramics such as alumina and boron carbide have been used as plates in ballistic armored vests to repel high-velocity
Ceramic
applications. It is a metal matrix composite, consisting of particles of boron carbide (29.5–30.8 wt%) and titanium hydride (4.7–5.1 wt%) embedded in an aluminium
Boron aluminum titanium hydride
Boron_aluminum_titanium_hydride
Cage-like allotrope of carbon
University proposed a stable cage of 80 boron atoms with the same structure as C60 but with an additional boron atom at the center of each hexagon. The
Buckminsterfullerene
Chemical compound
matrix reinforced with non-metal carbides (silicon carbide, boron carbide, etc.) or carbon fibres, aluminium carbide often forms as an unwanted product
Aluminium_carbide
NASA project aimed at producing a nuclear reactor for space
7 kg of 235 U. Nuclear reaction control is provided by a single rod of boron carbide, which is a neutron absorber. The reactor is intended to be launched
Kilopower
Machine tool used for grinding
grinder, which is used for grinding internal surfaces of workpieces, boron carbide wheels are effective when dealing with extremely hard materials that
Grinding_machine
Form of body armor that protects the torso from some projectiles
mm rifle rounds. These "Chicken Plates" were made of either boron carbide, silicon carbide, or aluminium oxide. They were issued to the crew of low-flying
Bulletproof_vest
Chemical compound
synthesis As a starting material for the production of other boron compounds, such as boron carbide Boron suboxide Boric acid Sassolite Tris(2,2,2-trifluoroethyl)
Boron_trioxide
Fuels containing boranes for increased energy density
fuels burn to create solids that are both sticky and corrosive, while boron carbide solids are abrasive. This caused serious problems for turbine blades
Zip_fuel
Low-yield thermonuclear weapon
did note that effective neutron absorbers and neutron poisons such as boron carbide can be incorporated into conventional armor and strap-on neutron moderating
Neutron_bomb
89. The structure of the tetraboride SiB4 is isomorphous to that of boron carbide (B4C), B6P, and B6O. It is metastable with respect to the hexaboride
Silicon_boride
substituting for carbon is boron. They are also a member of the boron carbides class of materials that include boron carbide (B4C). Dunk, Paul W.; Rodríguez-Fortea
Borafullerene
Chemical element with metallic and nonmetallic properties
compositions), and in delay compositions that burn at a constant rate. Boron carbide has been identified as a possible replacement for more toxic barium
Metalloid
Chemical compound
Beryllium carbide is a chemical compound with the chemical formula Be2C. It is a metal carbide. Similar to diamond, it is a very hard compound. It is used
Beryllium_carbide
Chemical compound
substrates such as silicon carbide. Another use for solar cell fabrication was proposed, but it is not currently used for this purpose. Boron arsenide is most attractive
Boron_arsenide
Proposed nuclear-powered spacecraft
low-enriched uranium (HALEU), using uranium dioxide fuel encased in a boron carbide radiation shield, and will use existing designs for the Department of
Space_Reactor‑1_Freedom
– H3BO3 Boron carbide – B4C Boron nitride – BN Boron phosphate – BPO4 Boron phosphide – BP Boron suboxide – B6O Boron tribromide – BBr3 Boron trichloride
List_of_inorganic_compounds
Nuclear reactor vessel lining
consideration include: Tungsten Molybdenum Beryllium Lithium Tin Boron carbide Silicon carbide Carbon fibre composite (CFC) Graphite Multi-layer tiles of several
Plasma-facing_material
Composite material consisting of fibers or particles in a metallic matrix
upgrade. The MMC driveshaft is made of an aluminum matrix reinforced with boron carbide, allowing the critical speed of the driveshaft to be raised by reducing
Metal_matrix_composite
Different forms of boron
isotropic boron carbide (B50C2) or nitride (B50N2). Most examples of α-tetragonal boron are in fact boron-rich carbide or nitrides. β-rhombohedral boron has
Allotropes_of_boron
US Nuclear thermal rocket engine project (1956–1973)
developed by the Aerojet Nuclear Systems Company from a mixture of boron carbide (B 4C), aluminum and titanium hydride (TiH 2), known as BATH after its
NERVA
US Army body armor
the torso. The plate component itself is made of boron carbide, a widely used and extremely hard boron-carbon ceramic. Backing the plate is a layer of
Improved_Outer_Tactical_Vest
Load caused by rapid temperature change
are alumina, zirconia, tungsten alloys, silicon nitride, silicon carbide, boron carbide, and some stainless steels. Reinforced carbon-carbon is extremely
Thermal_shock
Science and technology of creating objects from inorganic, non-metallic materials
dropping it on a hard surface. Ceramics such as alumina, boron carbide and silicon carbide have been used in bulletproof vests to repel small arms rifle
Ceramic_engineering
Atomic nuclear process
In engineering, the most important neutron absorber is 10B, used as boron carbide in nuclear reactor control rods or as boric acid as a coolant water
Neutron_capture
Proposed rocket propulsion mechanism
uranium. The solution would be contained in a bundle of pipes coated in boron carbide (for its properties of neutron absorption). Through a combination of
Nuclear_salt-water_rocket
State of matter
other industrial cutting tools. Ceramics such as alumina, boron carbide and silicon carbide have been used in bulletproof vests to repel large-caliber
Solid
History of semiconductor light source
a lighting device in Hungary in 1939 based on silicon carbide, with an option on boron carbide, that emitted white, yellowish white, or greenish white
History_of_the_LED
Investigations into the Chernobyl nuclear accident
metres (23 feet) high. The upper half of the rod 7 metres (23 feet) was boron carbide, which absorbs neutrons and thereby slows the reaction. The bottom section
Investigations into the Chernobyl disaster
Investigations_into_the_Chernobyl_disaster
Substance that can absorb large quantities of neutrons in a reactor core
2022. Fabrication and Evaluation of Urania-Alumina Fuel Elements and Boron Carbide Burnable Poison Elements Archived 11 March 2023 at the Wayback Machine
Neutron_poison
Expression of symbolic information
empirical formulas which contains only the whole numbers. An example is boron carbide, whose formula of CBn is a variable non-whole number ratio, with n ranging
Formula
Soviet ballistic vest
the vest. As such, the 6B4 ballistic vest was developed, which used boron carbide ADU 14.20.00.000 tiles capable of stopping close range M855 hits. The
6B4_ballistic_vest
Chemical compound
repulsively sweet odor. Given its simple formula, diborane is a fundamental boron compound. It has attracted wide attention for its unique electronic structure
Diborane
Hypothetical airship that is evacuated rather than filled with a lighter-than-air gas
addressed four materials, specifically I220H beryllium (elemental 99%), boron carbide ceramic, diamond-like carbon, and 5056 aluminum alloy (94.8% Al, 5%
Vacuum_airship
Compact notation for chemical compounds
written with entirely whole-number empirical formulae. An example is boron carbide, whose formula of CBn is a variable non-whole number ratio with n ranging
Chemical_formula
Rough material used to shape or finish objects by friction
oxide) Dry ice Glass powder Steel abrasive Silicon carbide (carborundum) Zirconia alumina Boron carbide Slags Abrasives are shaped for various purposes.
Abrasive
Type of vehicle armour
curved shapes. Later models of the T-64, along with newer designs, use a boron carbide-filled resin aggregate for greatly improved protection[citation needed]
Composite_armour
Deposition. 87–88: 813–818. Emin, D.; Aselage, T.L. (2005). "A Proposed Boron-Carbide-Based Solid-State Neutron Detector". J. Appl. Phys. 97 (1): 013529–013529–3
Neutron_detection
Protective armoured plate
plate packages. Ceramic armor plates, typically composed of boron carbide, silicon carbide, or other similar materials, are commonplace in military applications
Ballistic_plate
Lithography using 13.5 nm UV light
doi:10.1063/1.2212288 – via ResearchGate. "Hydrogen penetration of boron carbide". M. Mayer, M. Balden, and R. Behrisch, J. Nucl. Mat. 252, 55 (1998)
EUV_lithography
Storage pools for spent nuclear fuel
tracking and rearrangement. High-density racks also incorporate boron-10, often as boron carbide (Metamic, Boraflex, Boral, Tetrabor and Carborundum) or other
Spent_fuel_pool
Chemical compound
Hot-Pressed Boron Carbide Armor Plate". Journal of the American Ceramic Society. 99 (8): 2834–2841. doi:10.1111/jace.14295. "Adept Armor - Glossary - Boron Suboxide"
Boron_suboxide
Material in core during nuclear meltdown
contact with water, hot boron carbide from BWR reactor control rods forms first boron oxide and methane, then boric acid. Boron may also continue to contribute
Corium_(nuclear_reactor)
1986 nuclear accident in the Soviet Union
Potential solutions include using a robot to drill into the fuel and insert boron carbide control rods. In early 2021, a ChNPP press release stated that the observed
Chernobyl_disaster
One of the reactors involved in the Fukushima nuclear accident
materials: Uranium dioxide 78.3 tons Zirconium 32.7 tons Steel 12.5 tons Boron carbide 590 kilograms Inconel 1 ton On 11 March at 14:46 JST, in response to
Fukushima nuclear accident (Unit 1 Reactor)
Fukushima_nuclear_accident_(Unit_1_Reactor)
American military ballistic protection system
The standard plate for the Interceptor body armor is made of boron carbide or silicon carbide ceramic. The standard plates are not given an NIJ rating, as
Small_Arms_Protective_Insert
Turkish defence manufacturer
armor domestically. The company began mass production of boron carbide (B4C) and silicon carbide (SiC) ceramics in 2012. In 2021, the company expanded its
Nurol_Teknoloji
Personal body armour made from metal plates
vests made from synthetic fibre, in the 1950s, made of either boron carbide, silicon carbide, or aluminium oxide. They were issued to the crew of low-flying
Plate_armour
Elements with atomic numbers 57-70
reduction of Ln2O3 with boron; reduction of boron oxide, B2O3, and Ln2O3 together with carbon; reduction of metal oxide with boron carbide, B4C. Producing high
Lanthanide
Method of marking or cleaning a surface
work piece. Nozzles come in a variety of shapes, sizes, and materials. Boron carbide is a popular material for nozzles because it resists abrasive wear well
Sandblasting
Any of the five regular polyhedra
pyritohedron is also not regular. Allotropes of boron and many boron compounds, such as boron carbide, include discrete B12 icosahedra within their crystal
Platonic_solid
Steel alloyed with a variety of elements
titanium, and niobium are strong carbide-forming elements, forming vanadium carbide, titanium carbide, and niobium carbide, respectively. Alloying elements
Alloy_steel
Weak acid with formula H3BO3
Boric acid, more specifically orthoboric acid, is a compound of boron, oxygen, and hydrogen with formula B(OH)3. It may also be called hydrogen orthoborate
Boric_acid
Subtractive manufacturing process
cutting area. The slurry usually consists of abrasive boron carbide, aluminum oxide or silicon carbide particles in a suspension of water (20 to 60% by volume)
Ultrasonic_machining
Chemical compound
Tantalum carbides (TaC) form a family of binary chemical compounds of tantalum and carbon with the empirical formula TaCx, where x usually varies between
Tantalum_carbide
Bullet-resistant body armor system
advanced body armor fielded by the U.S. military, and are constructed of boron carbide ceramic with a Spectra shield backing that breaks down projectiles and
Interceptor multi-threat body armor system
Interceptor_multi-threat_body_armor_system
2011 nuclear accident in Japan
reactions are exothermic. In combination with the exothermic reaction of boron carbide with stainless steel, these reactions can contribute to the overheating
Fukushima_nuclear_accident
Step in the process of designing physical objects
is a technical ceramics in the top-left of the pink region such as boron carbide. The performance index can then be plotted on the Ashby chart by converting
Material_selection
Yugoslav T-72 variant
version, a segment made out of a non-metal, most likely rubber and boron carbide (see Chobham armour), was sandwiched between layers of steel. The glacis
M-84
Turkish businessman and politician (born 1978)
foundation for the Bandırma Boron Carbide Production Facility, as part of Turkey's New Boron Strategy, aimed at processing boron for use in defense industries
Berat_Albayrak
Any measure of hardness based on scratch resistance
assign hardness numbers of 12 to fused alumina, 13 to silicon carbide, and 14 to boron carbide. Ridgway, Raymond R; Ballard, Archibald H; Bailey, Bruce L
Scratch_hardness
Ionizing radiation that presents as free neutrons
into carbon or helium and produces virtually no gamma radiation with boron carbide, a shield commonly used where concrete would be cost prohibitive. Commercially
Neutron_radiation
Chemical compound
lumps clinging to it. These lumps could scratch a polished block of boron carbide, something only diamond was known to do. From the smell of ammonia,
Magnesium_nitride
Any of the chemical elements in the second row of the periodic table
amounts in making insulating fiberglass and sodium perborate bleach; boron carbide, a ceramic material, is used to make armour materials, especially in
Period_2_element
Silicon carbide mineral
Moissanite (/ˈmɔɪsəˌnaɪt/) is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare
Moissanite
Chemical compound
non-stoichiometry is common for borides (see crystal structure of boron-rich metal borides and boron carbide). The unit cell parameters of BAM are a = 1.0313 nm, b
Aluminium_magnesium_boride
Nuclear research reactor
moderator (70% and 30% of the moderation, respectively). Elements of boron carbide sheathed in aluminum are utilized for control, compensation, and safety
Maria_reactor
German composite armour system
ceramic tiles (possibly materials like aluminium oxide, silicon carbide and boron carbide depending on the user's requirements). Behind the ceramic tiles
MEXAS
Chemical compound
electrical discharge machining. TiB2 shares some properties with boron carbide and titanium carbide, but many of its properties are superior to those two. 2nd
Titanium_diboride
trioxide 1303–86–2 B2S3 diboron trisulfide 12007–33–9 B4C boron carbide 12069–32–8 B4H10 boron decahydride 18283–93–7 BaAl2O4 barium aluminate 12004–04–5
List of CAS numbers by chemical compound
List_of_CAS_numbers_by_chemical_compound
1303–86–2 B2S3 diboron trisulfide 12007–33–9 B3N3H6 borazine 6569–51–3 B4C boron carbide 12069–32–8 B4CaO7 colemanite B4Na2O7.10H2O borax 1303-96-4 Ba(AlO2)2
Glossary_of_chemical_formulae
Industrial conglomerate in Turkey
(vests, helmets), land vehicles, and aerial platforms using boron carbide and silicon carbide. Nurol Yatırım Bankası – investment banking based in Maslak
Nurol_Holding
Range of safety measures
aluminium. Sometimes even lighter materials such as polypropylene or boron carbide are used. In a typical graded-Z shield, the high-Z layer effectively
Radiation_protection
19401-01-5 CB boron carbide 12011-54-0 CBSi carbon monoboride monosilicide 12628-09-0 CB2 diboron carbide 12537-86-9 CB4 boron carbide 12069-32-8 CBe2
List of compounds with carbon number 1
List_of_compounds_with_carbon_number_1
Topics referred to by the same term
refer to: Hematite Anthracite Carbonado, a black tinted natural diamond Boron carbide A black synthetic diamond, specifically CVD polycrystalline diamonds
Black_Diamond
Nuclear reactor design
redundant safety is also provided by an array of gravitationally driven boron carbide control rods. Use of molten salt fuel with the appropriate chemistry
Stable_salt_reactor
American ceramic manufacturing company
semiconductor and flat panel display industries, made of silicon carbide, boron carbide, alumina, graphite, yttria and silicon. Its trademarks include Cerasic
CoorsTek
Chemical compound
water. Boron reacts with halogens to give the corresponding trihalides. Boron trichloride is, however, produced industrially by chlorination of boron oxide
Boron_trichloride
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