Silicon nitride ceramic is a superhard ceramic material. Its hardness is higher than that of alumina and zirconia, and it is extremely difficult to process. At present, the processing of silicon nitride mainly adopts grinding, using high-speed rotating diamond grinding rods to generate grinding force, to achieve grinding and forming of ceramic materials. Due to its extremely high hardness, the feed and cutting amount during processing are relatively small, and the processing efficiency is low. This is also one of the reasons why the current silicon nitride ceramic finishing cost is relatively high.
Silicon nitride has high strength and is extremely resistant to high temperatures. Its strength can be maintained up to 1200℃ without decreasing, and it will not decompose until 1900℃. It is resistant to chemical corrosion and can withstand almost all inorganic acids and caustic soda solutions below 30%, and it can also withstand corrosion from many organic acids; Silicon nitride ceramic is an outstanding high-temperature resistant engineering material, which is mostly used in many high-temperature resistant fields. When it is heated to 1200℃ in time, its strength will not decrease, and it will not melt into a melt after being heated. It will only decompose when its temperature reaches 1900℃. Not only that, silicon nitride ceramics have excellent corrosion resistance. Inorganic acid solutions and caustic soda with a concentration of less than 30% are almost corroded. In addition, it can resist corrosion from many organic acids. At the same time, it is also a high-performance electrical insulating material.
Non-Ferrous Crucible Inc. provide silicon nitride ceramic materials. Generally, it is made by reaction sintering, atmospheric pressure or hot-pressing sintering, gas pressure sintering, or hot isostatic pressing sintering process, and is mainly used for ceramic bearings, sealing components, and high-temperature structural parts. Advanced production equipment, ensures the precise tolerance requirements of ceramic structural parts and ensures the use of your products in various industries.
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