What is boron carbide powder?
Nano boron carbide and ultrafine boron carbide powder were prepared by variable current laser ion vapor phase method. Boron carbide, also known as black diamond, has a molecular formula of B4C and is usually a gray black micro powder. It is one of the three hardest materials known (the other two being diamond and cubic boron nitride). Hard black glossy crystal.
The hardness is lower than industrial diamond, but higher than silicon carbide. Compared to most pottery, it has lower fragility. Has a large thermal neutron capture cross-section. Strong chemical resistance. Not susceptible to corrosion by hydrogen fluoride and nitric acid. Dissolved in molten alkali but insoluble in water and acid.
What is the application of boron carbide powder?
The product has high purity, small particle size, uniform distribution, large specific surface area, high surface activity, and low loose density. It is an artificially synthesized superhard material with a hardness second only to diamond, a Mohs hardness of 9.46, a microhardness of 5600-6200Kg/mm, a specific gravity of 2.52g/cm, a melting point of 2250C, and does not react with acid and alkali solutions. It has high degree of oxidation, neutron absorption, wear resistance, and semiconductor conductivity. It is one of the substances that is stable to acids, and is stable in concentrated or dilute acidic or alkaline aqueous solutions. Has stable physical and chemical properties, suitable for grinding, grinding, drilling, and other applications of hard materials.
1. Neutron absorption and radiation protection materials: Element B has a neutron absorption cross section of up to 600 bar and is the main material used for deceleration elements - control rods or radiation protection components in nuclear reactors;
2. Composite armor materials: Utilizing their lightweight, superhard, and high modulus properties, they are used as lightweight bulletproof vests and bulletproof armor materials. The bulletproof vest made of boron carbide is more than 50% lighter than the same type of steel bulletproof vest. Boron carbide is also an important bulletproof armor material for land-based armored vehicles, armed helicopters, and civil aviation aircraft. Helicopters such as the AH-64 Apache, Super Cobra, Super Puma, and BlackHawk are equipped with boron carbide armor;
3. Semiconductor industrial components and thermoelectric components: Boron carbide ceramics have semiconductor properties and good thermal conductivity, and can be used as high-temperature semiconductor components as well as gas distribution disks, focusing rings, microwave or infrared windows, DC plugs, etc. in the semiconductor industry. The combination of B4C and C can be used as high-temperature thermocouple elements, with temperatures up to 2300 ℃, and can also be used as radiation resistant thermoelectric elements;
4. Mechanical seal components: The superhard properties and excellent wear resistance of boron carbide make it an important material for mechanical seals. Due to its relatively high cost
Mainly used in some special mechanical seal applications: 5. Nozzle material: Boron carbide CY-B4C1. Its high hardness and excellent wear resistance make it an important nozzle material. Boron carbide nozzles have the advantages of long lifespan, relatively low cost, and time-saving. The lifespan of boron carbide nozzles is tens of times that of alumina nozzles, and many times longer than that of WC and Sic nozzles;
6. Refractory materials, fine engineering ceramics, such as high-precision nozzles, sealing rings, nuclear industry, and defense industry.
How to store this product
This product should be stored in a cool, dry room and avoid heavy pressure. Untreated powders should not be exposed to air during use to prevent moisture absorption and aggregation, which may affect dispersion performance and effectiveness.
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