A Si3N4 is a covalent bonding compound. The basic structural element is the [SiN4] Tetrahedron. The silicon is in the middle of the tetrahedron. Four nitrogen atoms surround it. They are located on the four vertices. 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 using it in a 650-degree boiler for several months. 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. The ceramic steam nozzle has heat resistance and wear resistance. It shows no damage even after a few month’s use in a boiler with a temperature of 650 degrees.
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 comprehensive characteristics and abundant resources. They also have wear resistance properties, corrosion resistance, heat resistance, oxidation resistant, thermal shock and resistance to thermal shock that are unmatched by general metal materials. 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 most potential for application.
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