What is Boron Carbide?

Boron carburide (also known as black diamand) is an organic material with the molecular formula B4C. It's a gray-black fine powder. It is among the three hardest substances known (the two others being diamond and cubic boron-nitride). It's used in bulletproof vests, tank armor and other industrial applications. Its Mohs hardness rating is 9.3.

Boron carbide absorbs a large amount of neutrons and does not form radioisotopes. It is therefore an ideal neutron absorption material in nuclear power plants. Neutron absorbers are used to control nuclear fission. Boron carbide, which is used in nuclear reactors, is mostly made into a controlled rod shape. But sometimes it's made into powder due to the increased surface area.

Due to its low density, it is a good material for lightweight armor and ceramic reinforcement phases. It is widely used in ceramic reinforcing phase, lightweight armor, neutron absorbers and other applications. As boron carbide can be easily manufactured and is less expensive than diamond and cubic Boron Nitride, it is used more often. It can be used to replace diamond in some areas and is often used for grinding, drilling, and grinding.

Boron carbide Powder Uses

(1) The field is national defense. Bullet-proofing has been done with boron carbide ceramics since the 1960s. Comparing it to other materials, its characteristics are easy portability and high toughness. It is a key component of the lightweight armor used on armed helicopters as well as the bulletproof aircraft armor. The British used this material as a raw materials to manufacture armor that can protect against armor piercing projectiles.

(2) In terms if chemical raw materials. To increase the wear resistance of alloys and their strength, boron-carbide is used. This can be done by boronizing the surface of the alloy to produce a thin layer iron boride.

(3) Wear-resistant field. Boron carbide ceramics are visible in a number of industrial nozzles. These include desander nozzles and nozzles designed for high-pressure water guns. They are often chosen by factories for their durability under extreme conditions, and cost-effectiveness. . It can also be used to avoid pollution due to abrasive waste during grinding. As a diamond abrasive substitute, boron carbide can be used to reduce the cost of processing various metals as well as jade glass.

(4) Nuclear energy. Because of its excellent capacity to absorb neutrons, boron carbide is often used as a neutron absorption rod, safety rods and in other components, which are designed to reduce the rate of nuclear fission, and ensure human safety.

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What is Boron Carbide?

Boron carburide (also known as black diamand) is an organic material with the molecular formula B4C. It's a gray-black fine powder. It is among the three hardest substances known (the two others being diamond and cubic boron-nitride). Tank armor, bulletproof vests, and many other industrial uses are made of it. Boron carbide absorbs a lot of neutrons but does not produce radioisotopes. This makes it an ideal neutron absorption material for nuclear power plants. Neutron absorbers are used to regulate the rate of nuclear fusion. In the nuclear reactor sector, the main form of Boron carbide used is a controllable Rod shape. But sometimes it's made into powder due to the increased surface area.

What are the main applications of Boron Carbide?

(1) The field is national defense. Bullet-proofing has been done with boron carbide ceramics since the 1960s. Comparing it to other materials, its characteristics are easy portability and a high level of hardness. It plays an important role in the lightweight armour of armed aircraft and bulletproof helicopters. The British used this material as a raw materials to manufacture armor that can protect against armor piercing projectiles.

(2) In terms of raw chemical materials. To increase the wear-resistance and strength of alloys boron carbide has been used as an agent to boronize alloys. This can be done on the metal surface by generating a thin layer iron boride.

(3) Wear-resistant field. Boron carbide ceramics are visible in a number of industrial nozzles. These include desander nozzles to remove rust and nozzles designed for high-pressure water gun cutting. Many factories choose them because they have a long life and are cost-effective. . It can also be used to avoid pollution due to abrasive waste during grinding. As a diamond abrasive substitute, boron carbide can be used to reduce the cost of processing various metals as well as jade glass.

(4) Nuclear energy. It is commonly used as a neutron absorber in safety rods, control rods and other components for controlling the rate of nuclear fission.

(5) Aviation. The gyroscope, which is an essential component of aircraft navigation, can be effectively extended by using boron-carbide as a material additive.

(aka. Technology Co. Ltd., a global supplier of high quality chemical materials and Nanomaterials with more than 12 years experience in the field. Our company's powder is of high purity with a fine particle size. If you need lower, please call us.

The boron-carbide crystal is rhombohedral in structure. Its crystal lattice belongs the D3d5R3m space lattice. The rhombohedral lattice can be described as an icosahedron-shaped primitive cubic cell that extends diagonally in the space. The c-axis is the same as the diagonal of the area. A linear chain is formed by connecting three boron-atoms to an adjacent icosahedron. Three of the 12 icosahedral position are found on the chain. If B is due to the icosahedron's position and C is in a chain, the stoichiometry is B4C.

1. Basic properties and applications for boron carbide

1) Low density

B4C density is small at 2.52g/cm3. The empirical formula (9) can be used to express the relationship between carbon content and density in the homogeneous area.

r=2.4224+0.00489C%(9)

Because of the low density of the boron carbide, if a higher density can be obtained, it's performance can reach the standard for boron carbide, which is high strength and hardness. So, it can also be used as lightweight armor in order to reduce the weight of cars and tanks. Save energy.

2) Hardness, wear resistance

B4C exhibits super hardness, and a high level of wear resistance. The Vickers Hardness of B4C in homogeneous area increases as the C content increases. The hardness of carbon is 29.1 GPa when carbon is 10.6%. When carbon is 20%, hardness 21 can be as high as 37.7 GPa. At high temperatures, its hardness remains high (>30GPa). You can express the change of hardness in temperature by using empirical formula (10).

H=H0-exp(-aT)(10)

The formula is: H0-the hardness of the material at room temperature

Temperature is T.

Carbon is a constant.

This formula applies to 201700. B4C is second only to cubic BN and diamond in terms of hardness.

B4C wear resistance increases with temperature. As the temperature increases, the friction coefficient of B4C decreases. It drops to 0.05 between 20 and 1400, while the friction rate continues to decline. B4C's super hardness and friction properties have made it a popular nozzle for sandblasting.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier and manufacturer with more than 12 years experience in providing super-high quality chemicals and nanomaterials. The B4C Powder produced by our company is of high purity and has a low impurity level. If you require lower, please contact our company.