Product Performance and Application Range of Black Corundum
As a high-performance material, boron carbide powder has been widely used in many fields due to its excellent physical and chemical properties. This article will explore the characteristics, sales and main applications of boron carbide powder.
Boron carbide (B4C), commonly known as black diamond, is one of the three hardest materials known, second only to diamond. Its hardness is higher than silicon carbide and slightly lower than industrial diamond. Although it is less brittle, it performs well in most pottery. The key characteristics of boron carbide powder include:
Excellent Hardness and Stability
The hardness of boron carbide powder is second only to diamond, with a Mohs hardness of 9.46 and a microhardness between 5600-6200Kg/mm². Its melting point is as high as 2250℃, and it is stable in acid and alkali solutions and will not react. Such characteristics make boron carbide powder perform well in high temperature and harsh environments.
High Purity and Particle Size Uniformity
Boron carbide powder is usually characterized by high purity, small particle size and uniform distribution. Its large specific surface area, high surface activity and low bulk density make it more efficient and durable in applications. These properties make boron carbide powder an indispensable material in various precision industries.
Excellent Chemical and Physical Properties
Boron carbide powder has excellent chemical stability and wear resistance. It is not corroded by hot hydrogen fluoride and nitric acid, and can be dissolved in molten alkali. Its stable physical and chemical properties make it suitable for applications such as grinding, grinding and drilling of hard materials.
Boron carbide powder for sale has shown its wide application potential in many fields:
Neutron Absorption and Radiation Protection Materials
Boron carbide has a neutron absorption cross section of up to 600 barn and is the main material for deceleration elements and radiation protection components in nuclear reactors. Its efficient neutron absorption ability makes it play an important role in the nuclear industry and ensures the safe operation of nuclear reactors.
Composite Armor Materials
Boron carbide's light weight, superhardness and high modulus make it an ideal bulletproof armor material. Bulletproof vests made of boron carbide are more than 50% lighter than similar steel bulletproof vests. Boron carbide is also widely used in bulletproof armor for land armored vehicles, armed helicopters and civil airliners, such as AH-64 Apache helicopters and Black Hawk helicopters.
Semiconductor Industry Components and Thermoelectric Elements
Boron carbide ceramics have semiconductor properties and good thermal conductivity, and are suitable for high-temperature semiconductor components and gas distribution plates, focusing rings, microwave or infrared windows, etc. Boron carbide combined with carbon can be used as a high-temperature thermocouple element, with a high temperature resistance of up to 2300℃ and excellent radiation resistance.
Mechanical Seal Components
Due to its superhardness and wear resistance, boron carbide has become an important material for mechanical seals. Despite its high cost, it is still widely used in special mechanical seal applications to ensure the long-term stable operation of the equipment.
Nozzle Materials
Boron carbide powder shows excellent performance in nozzle manufacturing. Its high hardness and wear resistance give boron carbide nozzles a long service life. Compared with alumina nozzles, boron carbide nozzles have a service life of dozens of times longer and lower maintenance costs.
Refractory Materials and Fine Engineering Ceramics
Boron carbide is also widely used in refractory materials and engineering ceramics such as high-precision nozzles and sealing rings, and is suitable for use in the nuclear industry and defense industry.
