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A Si3N4 is a covalent bonding compound. The basic structural element is a [SiN4] Tetrahedron. The silicon is in the middle of the tetrahedron. Four nitrogen atoms surround it. They are located on the four corners of the tetrahedron. The tetrahedrons have the same form as an atom. They are connected in a three-dimensional network.
Si3N4 ceramics used as structural materials: examples
It can be used for ball bearings because of its high rigidity, lightweight, and low weight. It generates less energy, is more precision than metal, and can be used in high temperatures and with corrosive media. It has heat resistance and wear resistance. The ceramic Si3N4 steam nozzle showed no damage even after several months of use in a 650-degree boiler. Si3N4 can be used for ball bearings because of its high rigidity and lightweight. It generates less energy, is more precision than metal, and can be used in high temperatures and with corrosive media. After being used in the 650 boiler for several months, the ceramic steam nozzle has shown no damage and is resistant to heat.
Si3N4 ceramics are widely used in a wide range of applications
Si3N4 ceramics’ performance and reliability are set to continue improving with the advancement of molding, sintering technology and processing. Si3N4 Ceramics have excellent properties, abundant resources, and possess characteristics that are unmatched by metal materials. These include wear resistance and corrosion resistance. It can handle harsh working environments that metal or polymer material cannot.
Si3N4 ceramics are classified as high-temperature structure ceramics due to their superior mechanical properties, thermal characteristics, and chemical stability compared to other high-temperature structures ceramics. The material that has the greatest potential for application.
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