Silicon Hexaboride SiB6 is a lightweight ceramic compound formed between silicon and boron

Overview of Silicon Hexaboride SiB6 powder

Silicon Hexaboride SiB6 molecular weight:92.952, density 3.0g/cm3, melting point 2200℃, is a kind of luster black gray powder, insoluble in water. Silicon Hexaboride SiB6 is resistant to oxidation, thermal shock and chemical attack. It has high strength and stability, especially under thermal shock. Silicon Hexaboride has excellent thermoelectric properties. As a P-type high temperature thermoelectric material instead of boron carbide, the temperature of its hot end can reach 1200. It can be used as an engineering ceramic material, sandblasting nozzle, making blades of gas engines and other special-shaped sintered parts and seals.

Silicon boride (also known as silicon borosilicate) is a lightweight ceramic compound formed between silicon and boron. Several stoichiometric silicon boride compounds, SiBN, have been reported: silicon tribromide, SiB3, silicon tetraboride, SiB4, Silicon Hexaboride, SiB6, and SiBN (n = 14, 15, 40, etc.).The joint production of N = 3 and N = 6 phases as mixtures was first reported by Henry Moissan and Alfred Stoker in 1900 when silicon and boron were briefly heated in a clay vessel. In 1960, three separate groups, Carl Klein and Donald Sands, first reported the direct synthesis of tetraborides from elements; Owen Colton; And Cyril Brosset and Bent Magnusson.

It has been proposed that triborides are silicon-rich versions of tetraborides. Thus, the stoichiometry of both compounds can be expressed as sib4-x, where x = 0 or 1. For n = 3 and 6 compounds, all SiB were black with similar crystal densities: 2.52 and 2.47 g cm-3, respectively.On the MoHS scale of mineral hardness, SiB4-X and SiB6 are between diamond and ruby. Boronides can be grown in solid or liquid boron-saturated silicon.

The crystal structure of SiB6 consists of the interconnected icosahedron (a polyhedron with 20 faces), icosahedron (a polyhedron with 26 faces), and isolated silicon and boron atoms. Due to the size mismatch between silicon and boron atoms, silicon can replace boron in the B12 icosahedron with a limiting stoichiometric value of SiB2.89. The structure of SiB4 tetraboride is isomorphic to that of boron carbide (B4C), B6P and B6O. It is metastable with respect to hexaborides. When heated in air or oxygen, both SiB4-X and SiB6 oxidize on the surface, and both are attacked at high temperatures by boiling sulfuric acid and fluorine, chlorine and bromine.Silicon boride is conductive. The thermal expansion coefficient of hexaborides is low and the nuclear cross-section of thermal neutrons is large. Tetraborides are used as the black coating on some of the space shuttle heat insulation tiles.

Application of Silicon Hexaboride SiB6 powder

Boron silicide (SiB6) powder (black gray powder, the relative density of 3.0g/cm3, the melting point of 2200℃.Boron silicide (SiB6) is insoluble in water and resistant to oxidation, thermal shock and chemical corrosion. It has high strength and stability, especially under thermal shock, its grinding efficiency is higher than that of boron carbide. The silicon boride powder has high purity, small particle size distribution and large specific surface area. So the main uses of Silicon Hexaboride are many, as follows:

1. Used as a variety of standard abrasive, grinding cemented carbide;

2. Used as engineering ceramic material, used as various standard abrasives, grinding cemented carbide.

3. It is also used as engineering ceramic materials and sandblasting nozzle to manufacture blades of gas engines and other special-shaped sintered parts and seals.

4. Used as an antioxidant for refractories.

5. Add powder metallurgy and hard alloy to improve strength, hardness and heat resistance.

6. For aerospace carbon-carbon composite materials, improve the ablation resistance and high-temperature strength of composite materials.

Engineering ceramics and sealing components.

8. Refractory antioxidants.

Silicon Hexaboride SiB6 powder Price

Silicon Hexaboride SiB6 powder price will vary randomly with the production cost, transportation cost, international situation, exchange rate, and market supply and demand of Silicon Hexaboride SiB6 powder. Tanki New Materials Co.,Ltd Aims to help All industries and Chemical Wholesalers to find high-quality, cheap price Nanomaterials and chemicals by providing turn-key customize manufacturing services. If you are looking for Silicon Hexaboride SiB6 powder, please feel free to send an inquiry for the latest price of Silicon Hexaboride SiB6 powder.

Silicon Hexaboride SiB6 powder Supplier

As a global Silicon Hexaboride SiB6 powder supplier, Tanki New Materials Co.,Ltd has rich experiences in the properties, applications, and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metal, etc.), high-purity targets, functional ceramics, and structural devices, OEM service is available.

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