What is Boron carbide? In the manufacture of refractory products,boron carbide(B4C) is used as an anti-oxidant during formulation, while in high-performance ceramics and abrasives, it is used to impart wear resistance. Boron carbide from Elkem is carefully sourced to ensure consistent quality, and our specialists are always available to advise on your application. Boron carbide (B4C) is a dark grey–black material comprising 76.5–78 wt% boron, with an exceptional hardness that is only exceeded by diamond and cubic boron nitride. It is widely used to give a high degree of wear resistance to many materials and as an abrasive in its own right.
Applications of boron carbide One of the most important applications of boron carbide is as an additive to high-performance carbon-bonded refractory materials. In such materials, it not only imparts a high degree of wear resistance but also acts as an anti-oxidant, sacrificially oxidizing before any carbon-containing materials, avoiding carbon dioxide release. In these refractory materials, the resulting formation of boron oxide (B2O3) is also an advantage, as its columnar crystals help to reduce porosity, increasing the strength of the materials at elevated temperatures (especially above about 700 °C). In addition, if alumina is present, the formation of crystals of 9Al2O3·B2O3 causes volume expansion, which can reverse volume shrinkage and reduce cracks, extending product lifetime.
Boron Carbide (B4C) - Properties and Information about Boron Carbide Boron Carbide (B4C) is one of the hardest materials known, ranking third behind diamond and cubic boron nitride. Originally discovered in the mid-19th century as a by-product in producing metal borides, boron carbide was only studied in detail since 1930. B4C powders must be milled and purified commercially to remove metallic impurities. Boron carbide is difficult to sinter to full density in common with other non-oxide materials. Hot pressing or sinter HIP is required to achieve greater than 95% of theoretical density. Even using these techniques to achieve sintering at realistic temperatures (e.g., 1900 - 2200°C), small quantities of dopants such as fine carbon or silicon carbide are usually required. Alternatively, B4C can be formed as a coating on a suitable substrate by vapor phase reaction techniques, e.g., using boron halides or di-borane with methane or another chemical carbon source.
Price of Boron carbide Boron carbide particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Boron carbide. A large amount of large amount will be lower. The Price of Boron carbide is on our company's official website.
Boron carbide supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including Boron carbide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Boron carbide, you are welcome tocontact usor inquire at any time.
