Silicon Nitride Powder

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Silicon Nitride Powder
Posting date : Jul 16, 2009
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Power for silicon nitride (Si3N4) is light, hard, and has low thermal expansion coefficient. It has high mechanical strength, fracture toughness, and it is resistant to deformation at room temperature as well as at elevated temperature. Si3N4 differs from other ceramics because it doesn't melt, but, between 1800 and 1900 °C, it decomposes and sublimates into Si and N. However, stabilized forms can be made. Engine parts: valves, pistons, etc. Gas turbines Diesel engines Cutting tools Bearings High strength over a wide temperature range High fracture toughness High hardness Outstanding wear resistance, both impingement and frictional modes Good chemical resistance Papermaking machine foils Wear parts Physical performance Grain-size distribution Relative surface product Silt shape Above is through and latter synthesizes to the nitridationvariable, like Smashing, classification and other processing which the powder the controlled process determined. The B.E.T standard nitridedsilicon fine powder relative surface accumulates in 6m2/g and in the12m2/g level

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