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Silicon carbide powder is also known as emery, products are hexagonal crystals, specific gravity 3.20-3.25, Mohs hardness 9.2, microhardness 2840-3320kg/mm2. silicon carbide has the properties of stable chemical properties, high thermal conductivity, small coefficient of thermal expansion, and good abrasion resistance.Silicon carbide powder has many major application areas,such as functional ceramics,structural ceramics, advanced refractories, abrasives and metallurgical and so on.
(1) Abrasive
silicon carbide powder can be used as grinding media or grinding auxiliary material for grinding and processing glass, quartz crystal, prism crystal, ceramics, stone, cast iron and some non-ferrous metals, cemented carbide, titanium alloys, high-speed steel cutting tool grinding wheels and so on.
(2) Metallurgical and high temperature refractories
Steel mill applications of silicon carbide deoxidizer and foam ceramic filters,silicon carbide foam ceramic filters, with excellent strength and resistance to high temperature impact and chemical corrosion resistant.Use temperature over 1380 centigrade, widely used in molten metal filtration, high temperature flue gas treatment, catalyst carriers, solid heat exchangers and special fillers and other fields.
(3) Structural/functional ceramic materials (reaction sintering/pressureless sintering)
Ideal material for preparing silicon carbide such as wear resistant pipes, impellers, pump chambers, cyclones, ore bucket linings, with wear resistance service life 5-20 times that of cast iron or rubber, but also one of the ideal materials for aviation runway.Pressureless Sintering silicon carbide can be used for bulletproof ceramic plates, ceramic sheets and ceramic inserts.