CG MATERIAL
Nuclear Grade Boron Carbide Powder, Nuclear B4C Powder
Nuclear Grade Boron Carbide Powder, Nuclear B4C Powder
Nuclear grade Boron Carbide (B4C) is a high-purity, dense ceramic material that is widely used in nuclear power plants and other nuclear applications. It is a key component in control rods, which are used to regulate the rate of nuclear fission in reactors.
Nuclear grade B4C is produced with a very low concentration of impurities, such as oxygen and carbon, to ensure its stability and consistency under radiation exposure. It is also highly resistant to neutron absorption, making it an ideal material for shielding and other critical applications in nuclear energy production.
In addition to its use in nuclear power plants, nuclear grade B4C is also used in various other applications, such as neutron detection and shielding in medical and research facilities. It is highly valued for its exceptional hardness, low density, and high melting point, which make it a reliable and durable material in extreme environments.
Boron Carbide Ceramics Specification
| Item No. | Description | Purity | Lot Size |
| CG-CB05-100M | Boron Carbide Powder Particle Size: 100 mesh |
Total B > 78 %, Total C > 19% B2O3 < 0.15%, Free B < 0.3%, Free C < 2.5% |
100 kg 500 kg 1,000 kg Customize |
| CG-CB05-325M | Boron Carbide Powder Particle Size: 325 mesh |
Total B > 78 %, Total C > 19% B2O3 < 0.15%, Free B < 0.3%, Free C < 2.5% |
100 kg 500 kg 1,000 kg Customize |
| CG-CB05-1000 | Boron Carbide Powder Particle Size:1000 Grit |
Total B > 78 %, Total C > 19% B4C > 95% B2O3 < 0.15%, Fe < 0.2% |
100 kg 500 kg 1,000 kg Customize |
| CG-CB05-1200 | Boron Carbide Powder Particle Size:1200 Grit |
Total B > 78 %, Total C > 19% B4C > 95% B2O3 < 0.15%, Fe < 0.2% |
100 kg 500 kg 1,000 kg Customize |
Boron Carbide Ceramic Applications
Boron carbide ceramics are applied widely in industries as wearing resistant materials, and abrasives. As an abrasive, it is used in powdered form in the lapping (fine abrading) of metal and ceramic products, though its low oxidation temperature of 400–500° C (750–930° F) makes it unable to withstand the heat of grinding hardened tool steels.
Because of its hardness, together with its very low density, it has found application as a reinforcing agent for aluminum in military armor and high-performance bicycles, and its wear resistance has caused it to be employed in sandblasting nozzles and pump seals.
Its ability to absorb neutrons without forming long-lived radionuclides makes it attractive as an absorbent for neutron radiation arising in nuclear power plants and from anti-personnel neutron bombs. Nuclear applications of boron carbide include shielding, control rod and shut down pellets. Within control rods, boron carbide is often powdered, to increase its surface area.
Nuclear Grade Boron Carbide Specifications
| Properties | Units | Value |
| Physical | ||
| Chemical Formula | – | B4C |
| Density, r | g/cm3 | 2.51 |
| Color | – | black or dark gray |
| Crystal Structure | – | hexagonal |
| Water Absorption | % @R.T. | ng |
| Hardness | Vickers @ R.T. (GPa) | 36 |
| Hardness | knoop (kg/mm2) | ng |
| Mechanical | ||
| Compressive Strength | GPa @ R.T. | 2.9 |
| Tensile Strength | MPa@980þC | 155 |
| Modulus of Elasticity | GPa@ R.T | 445 |
| (Young’s Mod.) | ||
| Flexural Strength (MOR) | MPa @ R.T. | 375 |
| Poisson’s Ratio, u | @R.T. | 0.19 |
| Fracture Toughness, KIc | MPa x m1/2 | ng |
| Thermal | ||
| Max. Use Temperature | ºC | 2450 |
| (* denotes inert atm.) | ||
| Thermal Shock Resistance | DT (ºC) | ng |
| Thermal Conductivity | W/m-K @ R.T. | 28 |
| Coefficient of Linear Thermal Expansion, al | 10-6 K-1 (~25ºC through ±1000ºC) | 5.54 |
| Specific Heat, cp | J kg-1 K-1 @ R.T. | 945 |
| Electrical | ||
| Dielectric Constant | 1MHz @ R.T. | ng |
| Dielectric Strength | kV/mm | ng |
| Electrical Resistivity | Wcm @ R.T. | ng |
Packaging
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.
