Boron carbide is a covalent ceramic with boron carbon and a chemical formula of B4C. It is usually gray-black and used as sand in engine damage powders, bulletproof vests and other industrial applications. Vickers hardness of greater than 30 GPa is among the hardest materials, after cubic boron nitride. The third hardest substance is boron carbide, which is second only to cubic boron and nitride. This is why it’s called “black Diamond”.
Boron carbide, a material of high strength and hardness (roughly between 9.5 and 9.75 on Mohs’ scale), is used in the production of nuclear weapons. It is used for neutrons to be absorbed with a high-cross-section (a good shielding ability against neutrons) and is resistant to the ionization. Radiation stability and chemical stability. Its Vickers Hardness (38GPa), elastic Modulus (460GPa), and fracture toughness 3.5MPa*m1/2) are very close to the values of the diamond (1150GPa, and 5.3MPa*m1/2).
Boron carbide semiconductors are characterized by a jump-type transmission. The energy bandgap is dependent on the composition of the material and the degree to which it has been ordered. The bandgap, estimated at 2,09 eV with multiple intermediate states complicating the photoluminescence spectrum, is a complex mixture of bandgap states. The material is normally p type.
Boron carbide is a metal boride by-product that was discovered during the 19th Century. It was only studied in depth until the 1930s.
Boron carbide absorbs a large amount of neutrons and does not form radioisotopes. This makes it an ideal neutron absorption material for nuclear power plants. The neutron absorber is the main factor that controls the rate at which nuclear fission occurs. Boron carbide, which is easier to manufacture and less expensive than diamond and cubic-boron nitride is therefore more widely used. It is often used for grinding, drilling, and grinding. If you are interested in buying Boron Carbide B4C Powder, please send us an email to receive the most recent price.
Boron carbide powder B4C technical parameters
Boron Carbide Nanoparticles (B4C)
Hexagonal Crystal phase
SSA: 40-60m 2 /g
Zeta Potential: -26mV
Bulk density: 0.10g/cm 3
Making Method: Plasma Vapour-Phase Synthesis Method
Boron Carbide Powder (B4C): What is the process?
Boron carbide B4C powder is produced in an electric arc furnace by reducing the boron oxide at high temperature. Carbon is usually used as the reducing material for the carbothermic method. The high-temperature reducing reaction takes place in an electric furnace. At the moment, the carbothermic reaction method is the primary method used for the industrial production boron carbide. This method has the benefits of low cost and simple reactions. For boron carburizing, other methods include self-propagating thermoreduction methods, mechanochemical techniques, direct synthesis and sol gel methods.
Henri Moissan first synthesized boron carbur in 1899. Boron trioxide in the presence or carbon was reduced in an electric furnace. The reaction with carbon occurs at temperatures higher than B4C melting point. This is accompanied by large amounts of CO2:
2 B2O3 plus 7 C-B4C and 6 CO
If magnesium is being used, it can be done in a crucible made of graphite, and then the by-product magnesium can be removed using acid.
Boron Carbide B4C Specifications:
Application for Boron Carbide (B4C) Powder:
Boron carbide has a low density and a large strength. It also has chemistry stability. Ceramic reinforcement phase is used for wear-resistant materials.
Fine and Advanced Abrasive Materials
It is used in grinding processes for hard materials such a gems or ceramics. Also, for cutting and polishing knives, bearings and cemented carbids.
The following products are made from boron-carbide powder as a novel material: sandblasting nodes, seal rings, nozzles bearings, plungers in mud pumps, pestles rocket launchers ceramic coatings. It is widely used for sandblasting machines, electronics, information technology, aerospace, automobile, and other industries.
Materials for shielding and controlling the nuclear industry
Boron carbide is a highly regarded material that has been internationally recognized for its neutron absorption properties, thermal neutron section, and radiation resistance.
Its high strength and low specific gravity make it ideal for the manufacture of lightweight bulletproof armour, which is used to protect aircrafts, vehicles, ships, and even human bodies.
Improve mechanical part life
Mix boron-carbide powder with metals to create metal-based alloy powder. The original mechanical components are more resistant to wear after special surface treatments.
Special absorber provides energy
The solid fuel rocket uses a powdered form of boron carbide (also known as “black-gold”) as its power source.
Because of its high chemical potential and stable chemical properties boron carbide is widely used for the production other boron containing materials such as zirconium and titanium boride.
The anti-oxidation properties and high temperature resistance of boron carbide make it a popular refractory in a variety of fields such as steel stoves, kiln furniture, and other metallurgical applications.
Boron Carbide powder B4C storage condition:
B4C Powder dispersion and use effects will be affected by damp reunion. Therefore, boron carbide B4C must be packed in vacuum and kept in a dry and cool room. The boron carbide powder should not be exposed to stress.
Boron Carbide B4C Powder Packing & Shipping:
The amount of boron-carbide B4C powder will determine the type of packaging we use.
Boron carbide powder packaging: vacuum packed, 100g,500g or 1kg/bag; 25kg/barrel.
Boron carbide B4C Powder shipping: Can be shipped out via air, sea or express as soon after payment receipt.
Boron Carbide Properties
B4C, B4C Powder, black diamond powder, boron carbide powder
Refractory ceramics with boron-carbon
|Gray to Black Powder
|Solubility In H2O
|350 MPa Maximum (Ultimate).
|31 to 90 m/k
|4.5 to 5.6 um/m-K
Boron Carbide Health & Safety Information