Black silicon carbide 100um powder is particularly suitable for producing silicon carbide ceramic seals due to its unique properties, including high hardness and wear resistance, excellent corrosion resistance, and high temperature performance. These superior characteristics of silicon carbide are reflected in the following aspects:
Black silicon carbide has a Vickers hardness of 2840-3320 kg/mm², which is higher than industrial ceramic materials such as alumina, zirconia, and aluminum nitride. As a result, ceramic parts made from silicon carbide can effectively resist wear in mechanical transmission applications. By utilizing this feature, the wear resistance of silicon carbide ceramic seals is significantly enhanced, extending their service life.
Black silicon carbide has high strength and a high elastic modulus, allowing it to withstand large pressures and loads with excellent resistance to deformation. In the production of silicon carbide ceramic seals, this property ensures that the seals remain stable under high pressure and load conditions, preventing deformation or breakage and enhancing the overall performance and reliability of the equipment.
Silicon carbide has superior thermal conductivity compared to alumina and aluminum nitride. When used to make seals or other mechanical components, it can resist heat generated by friction and heat transferred from external and internal environments, helping to maintain the stability of ceramic parts at high temperatures. Furthermore, while silicon carbide is less tough at room temperature compared to other ceramics, its strength increases above 1200°C, exceeding that of aluminum nitride and zirconia. This property is especially significant for sealing components that must endure high-temperature environments, such as in aerospace applications.
Silicon carbide exhibits excellent resistance to acid and alkali corrosion, particularly in high-temperature environments. Its chemical stability is superior to other engineering ceramics. In corrosive environments, this resistance ensures that silicon carbide ceramic seals will not fail due to corrosion, further extending their service life and ensuring stable operation of equipment.
Silicon carbide materials have a low coefficient of thermal expansion, meaning they experience minimal volumetric deformation when heated. This property helps to maintain the sealing performance of the seals, even under temperature fluctuations.
Black silicon carbide has a specific gravity of 3.16-3.2g/cm³, which is lower than alumina, zirconia, and aluminum nitride. The low specific gravity of ceramic parts reduces their weight, thus easing the load and mechanical pressure. Our company produces black silicon carbide with well-rounded particle shapes and high bulk density, which results in more silicon carbide material per fixed volume, enhancing the density of silicon carbide ceramics and further improving their performance.
Black silicon carbide 100um powder corresponds to F120 mesh and, due to its outstanding properties, is highly suitable for the production of silicon carbide ceramic seals. It can meet the demands of various harsh working environments.
Tags: Black Silicon Carbide, White Fused Alumina, Brown Fused Alumina, Pink Fused Alumina, Black Fused Alumina