Silicon carbide has the characteristics
Posted: Wed Feb 12, 2025 10:21 am
Mullite is a series of aluminosilicate minerals, mainly including high-purity fused mullite, ordinary fused mullite, all natural bauxite concentrates, sintered mullite and light sintered mullite. Natural mullite crystals have fine acicular and radial cluster structure, with a melting point of about 1910 °C. This type of mineral is relatively rare and is mainly synthesized artificially.
Mullite is a mineral formed from aluminosilicate at high temperatures, and it is formed by artificial heating of aluminosilicate. Mullite has the characteristics of high heat resistance, high strength, low thermal conductivity and significant energy-saving effects.
Among them, its refractoriness is particularly excellent, and it remains stable at 1800 °C, and decomposes into corundum and liquid phase at 1810 °C. It is mainly used in the production of algeria number data refractory materials and is widely applied in industries such as ceramics, metallurgy, casting and electronics.
Silicon carbide
Silicon carbide (SiC) is produced by melting raw materials such as quartz sand, petroleum coke (or coal coke) and sawdust (salt is required to produce green silicon carbide) in an electric furnace at high temperature. It is a type of carbide with high hardness on the Mohs scale, with a rating of 9.5, second only to the world's hardest diamond (rated 10), and has excellent thermal conductivity.
It is a semiconductor that can resist oxidation at high temperatures. Among modern non-oxide high-tech refractory raw materials such as C, N and B, silicon carbide is the most widely used and economical, and can be called steel sand or refractory sand. The general industrial silicon carbide is divided into two types: black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a specific gravity of 3.20-3.25 and a microhardness of 2840-3320 kg/mm².
Mullite is a mineral formed from aluminosilicate at high temperatures, and it is formed by artificial heating of aluminosilicate. Mullite has the characteristics of high heat resistance, high strength, low thermal conductivity and significant energy-saving effects.
Among them, its refractoriness is particularly excellent, and it remains stable at 1800 °C, and decomposes into corundum and liquid phase at 1810 °C. It is mainly used in the production of algeria number data refractory materials and is widely applied in industries such as ceramics, metallurgy, casting and electronics.
Silicon carbide
Silicon carbide (SiC) is produced by melting raw materials such as quartz sand, petroleum coke (or coal coke) and sawdust (salt is required to produce green silicon carbide) in an electric furnace at high temperature. It is a type of carbide with high hardness on the Mohs scale, with a rating of 9.5, second only to the world's hardest diamond (rated 10), and has excellent thermal conductivity.
It is a semiconductor that can resist oxidation at high temperatures. Among modern non-oxide high-tech refractory raw materials such as C, N and B, silicon carbide is the most widely used and economical, and can be called steel sand or refractory sand. The general industrial silicon carbide is divided into two types: black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a specific gravity of 3.20-3.25 and a microhardness of 2840-3320 kg/mm².