Tag: Boron carbide，Boron carbide powder

What is Boron Carbide?

Boron carburide (also known as black diamand) is a substance that has 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 a variety of industrial applications use 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. 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.

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 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 projectsiles.

(2) In terms of raw chemical materials. To increase the wear-resistance and strength of alloys, boron carbide is used as an alloy boronizing agent. This can be done by boronizing the metal surface and 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. 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. boron-carbide is commonly used as a neutron absorber in safety rods, control rods and other components. This helps to regulate the rate of nuclear fusion and ensure human safety.

(5) Aviation. The gyroscope in the navigational system of an aircraft is an essential component. Boron carbide can increase the life of this gyroscope by adding it to the material.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience in providing super-high quality chemicals and Nanomaterials. The powder that we produce is of high purity with fine particles and low impurity. If you need lower, please call us.

The boron-carbide crystal is a rhombohedral crystal, and its crystal lattice belongs in the D3d5R3m space lattice. The rhombohedral lattice can be described as an icosahedron-shaped primitive cell grid 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 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 its low density, boron carbide can achieve the same performance as boron, such as high strength, high toughness and other excellent properties. Therefore, it can be used for lightweight armor in order to reduce the weight and size of cars and tanks. Save energy.

Hardness and wear resistant

B4C exhibits super hardness, and has a high 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 temperature, 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 temperatures

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 & manufacture with more than 12 years experience in providing high-quality nanomaterials and chemicals. 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.

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 many 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 expensive diamonds at certain locations 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. It was used as a raw materials by the British in order to manufacture armor capable of defending against armor-piercing projectsiles.

(2) In terms chemical raw materials. To increase the wear resistance of alloys and their strength, boron-carbide is used. This can be done by boronizing the metal surface and forming 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. The high-performance ceramics have a long life and are cost effective. They are often chosen by factories for their durability under extreme conditions. . 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, or other components in order to control the rate at which nuclear fission occurs and ensure human safety.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience, is a trusted source for super-high quality chemicals and nanomaterials. The B4C powder that we produce is of high purity with a fine particle size. If you require lower, please Contact us.