Why boron carbide has high hardness
What is Boron Carbide?
Boron carbonide also known as black-diamond, is an inorganic compound with the formula of B4C. It is often a grey-black, powdery substance. It's one of three most hardy materials, after diamond and cubicboron nutride. This is why it is often used in body armor and tank armour. Boron carbide has an Mohs hardness of about 9.5. Boron carbide does not react with any acid or alkali solution, so it is insoluble even in water. Boron carbide is also known for its strong thermal neutron capture and high neutron absorption capabilities, which makes it a neutron absorber.
How is boron carbonide used?
Boron carbide can be used as an artificial rigid material. It is second only to cubic boron and diamond. Boron carbide crystals are hexagonal in structure. 2.52g/cm3 is the density. Its melting point is 2450°C. If the temperature rises above 2800°C it will quickly decompose and then volatilize. Boron carbide resists acid and alkali corrosion. It is also not wetted by most molten materials. Boron carbide can withstand air oxidation of 1000 degrees Celsius, however it will oxidize in an oxidizing atmosphere above 900 degrees Celsius. Boron carbide powder can grind to more than half the amount of silicon carbide. It is also 12 the harder than corundum. Boron carbide powder is a great grinding material that can also be worn-resistant.
The strong chemical stability and resistance to high temperatures, armour-piercing and bullet penetration of boron carbonide make it bulletproof. It is used often as bulletproof ceramic material and bulletproof coating coatings. You can also use it as an antioxidant. It forms an protective layer of carbonaceous substances, prevents excess oxidation, and prolongs the useful life of refractory material.
Why are boron carbide and borin so difficult to make?
Boron carbide can be used to make body armour. It is also a popular material, second only behind diamond and cubicboron nutride. Boron carbide's unique crystal structure creates a strong covalent link. It is made up primarily of orthorhombic and hexagonal hexahedrons. This crystal structure is responsible for boron carbid's excellent chemical and physical properties, such as its super hardness, low melting point, low density (low thermal expansion coefficient), high wear resistance and high melting points. Because of this, boron carbonide exhibits high hardness.
Are boron and carbide toxic to our bodies?
Boron carbide has been called synthetic diamond. However, current research shows that it isn't a health hazard. In order to create anti-neutron radiation fibers for leather, anti-X-ray and leather cores, various boron and heavy metal compounds as well as polypropylene can be blended with and spun. It is possible to get threads with a boron content of 35%. The fibre strength can range from 23-27CN/tex. You can use the breaking elongation to create knitted fabrics or nonwovens around the nuclear energy reactor. It can also increase neutron radiation protection shielding rates by up to 44%.
Prices for boron carbide
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