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Boron Carbide Powder / B4C Powder (B4C, 1-3um, 99.9%)

Boron carbide melting point up to 2350oC, boiling point higher than 3500oC, hardness up to 9.3, flexural strength ≥ 400Mpa; The product does not react with acid and alkali solution. It has high chemical potential and is one of the most stable materials to acid. Also, it has anti-oxidation, high temperature resistant, high strength, high grinding efficiency, high hardness

Boron Carbide Powder
Product No NRE-11032
CAS No. 12069-32-8
Formula B4C
Molecular Weight 55.255 g/mol
APS 45um(can be customized)
Purity 99%
Density 2.52 g/cm3
Color White/off-White
Melting Point 2,763 °C
Boiling Point 3,500 °C

Boron Carbide Powder

Boron carbide (B4C chemical formula about) is an extremely tough ceramic boron-carbon, and covalent materials used in tank armor, bullet-proof vests, engine sabotage powders,  as well as numerous industrial applications. With a Vickers hardness of> 30 GPa, it is one of the hardest known materials, behind cubic boron nitride and diamond.
Boron carbide was found in the nineteenth century as a by-product of reactions involving metal borides, but its chemical formula was unknown. It was not until 1930 that the chemical composition was estimated as B4C. There was, however, a controversy over the fact that the material did not have this exact 4: 1 stoichiometry, and in practice the material is always slightly weak carbon compared to this formula, and X-ray crystallography shows that their structure is very complex, with a mixture of CBC and icosahedra B12 chains. These features argued against a simple exact empirical formula of B4C. Since the B12 structural unit, the “ideal” boron carbide chemical formula is often not written as B4C, but as B12C3, and carbonic carbide deficiency is described in terms of a combination of units and B12C3 B12CBC.
The ability of boron carbide to absorb neutrons without forming long-life radionuclides makes it as attractive as neutron-absorbing radiation produced in nuclear power plants and neutron-bombs mines. Boron carbide nuclear applications include shielding, control rod, and pellet. Boron carbide is often pulverized to increase its surface.