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What is Hexagonal Boron Nitride?

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Update time : 2021-11-16 17:10:30
What is Hexagonal Boron Nitride?
Hexagonal Boron Nitride(h-BN), also known as ‘black diamond’, is an inorganic compound. It has the chemical formula B4C and is usually a grayish-black powder.
Hexagonal Boron Nitride is one of the three hardest materials known(second only to diamond and cubic-phase Boron Nitride), which is used in tank car armor, bullet armor, and many industrial supplies. It has a Mohs hardness of about 9.5.
Hexagonal Boron Nitride has multiple advantages of low density, high strength, high-temperature stability, and chemical stability. Structurally, it is similar to graphite. Boron nitride can withstand temperatures exceeding 2,000°C, and depending on the grade, its dielectric strength is close to 1000 volts/mil. Feel free to send an inquiry to get the latest price if you would like to buy Hexagonal Boron Nitride BN Powder in bulk.
How strong is hexagonal boron nitride?
Hexagonal Boron Nitride is the third known hard material in the world. Due to its higher antioxidant resistance at 800ºC, It has become the most ideal high-temperature wear-resistant material. There are two main key hardness indicators: Mohs hardness is about 9.5, microhardness is about 55GPa-67GPa.
What is hexagonal boron nitride used for?
Hexagonal boron nitride is widely used in the chemical field with its excellent performance.
Boron neutron absorption cross-section is high and its energy spectrum is wide, which are commonly used in neutron absorption materials of nuclear reactors. In addition, boron carbide is rich in resources, corrosion resistance, good thermal stability, no radioactive isotopes, and low secondary ray energy, so boron carbide is widely used as a control material and shielding material in nuclear reactors.
Boron carbide is widely used in materials: as an abrasive material for grinding and polishing, boron carbide with high hardness and high-pressure water cutting nozzle; good corrosion resistance, the stable chemical tip of flow transmitter of rocket liquid engine fuel or corrosion-resistant friction resistance device in ceramic gas turbine; good stability and heat conductivity of iron water and as continuous casting mold in mechanical industry. In addition, the application of boron carbide in coating materials: high boron carbide hardness, wear resistance, radiation resistance, chemical stability, and can be used to make amorphous boron carbide coated tools.
The high hardness and grinding ability of boron carbide are high. Adding it to the metal-based friction material can greatly improve the friction coefficient value of the material and have a positive impact on the performance of high-energy braking materials.
Is hexagonal boron nitride toxic?
Boron carbide has certain toxicity and irritation, so long-term close contact requires certain protective measures. For example, avoid inhaling its dust and get in direct contact with the skin. However, as a commonly used protective material, boron carbide generally does not do too much damage to the human body.
Intercept is the strongest body armor in the United States
The complete bulletproof suit is divided into three parts: the removable tactical main tank jacket (jungle camouflage), the soft bulletproof inner layer of KM-2 Kevra fiber material, and the front and rear bulletproof insert board. The tactical vest coat is well made, with a "large pocket" loaded with a boron carbide cartridge ceramic insert on the chest and back, and a fixed boron carbide ceramic insert in the chest pocket.
Behind the tactical tank top, the top end of the "big pocket" with the boron carbide ceramic insert has a very strong strap. Once the user is blocked by injury, others can hold the strap and drag it out of danger.
The quality of the 'blocker' body armor without neck and crotch protection is only 7.4kg. Among them, the outer tactical tank top and KM-2 Kevlar lining weigh 3.8kg, and the boron carbide bulletproof ceramic insert is 1.8kg per quality, nearly 35% less than the original bulletproof vest. In this way, the level of protection is strengthened, and the load is reduced. The design of the boron carbide ceramic plug board not only improves the protection level of body armor but also makes a tactical choice.
Hexagonal Boron Nitride Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Hexagonal Boron Nitride produced by our company has high purity, fine particle size, and impurity content. For the latest price of Hexagonal Boron Nitride, send us an email or click on the needed products to send an inquiry.
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