Detailed introduction/parameters/applications/functions/maintenance of Silicon nitride ceramic rods

　　▼Performance characteristic

　　1.High hardness ‌ : The hardness of silicon nitride ceramic rod is very high and can resist local plastic deformation ‌

　　‌2. High strength ‌ : its bending strength is between 600-800MPa, suitable for use in high pressure and high stress environment ‌

　　‌3. Wear resistance ‌ : has good wear resistance, suitable for high wear environment ‌

　　‌4. High temperature resistance ‌ : can maintain stable performance at high temperature, antioxidant temperature up to 1400℃, in reducing atmosphere can be used up to 1870℃‌

　　‌5. Thermal shock resistance ‌ : excellent performance in the environment of alternating hot and cold, heated to 1000℃ after being put into cold water will not break ‌

　　6‌ chemical stability ‌ : can resist almost all inorganic acids and less than 30% caustic soda solution, also can resist many organic acid corrosion ‌

　　▼Field of application

　　1. Mechanical field: silicon nitride ceramics are widely used in the mechanical field to manufacture valves, pipes, grading wheels, ceramic cutters, bearing balls, etc. Its low density, high temperature resistance, self-lubrication and corrosion resistance make it widely used in high-speed machine tool spindle high-speed bearing, aerospace engine, wind turbine bearing, automotive engine bearing and other equipment.

　　2. Semiconductor field: silicon nitride ceramic has excellent thermal conductivity and high thermal conductivity, making it an ideal material in semiconductor packaging field. Silicon nitride substrates have excellent performance in integrated circuits, high thermal conductivity, high bending strength and good thermal matching, suitable for high-performance power modules.

　　3. Bioceramic field: As a new generation of bioceramic materials, silicon nitride ceramic has good radiographic imaging performance, anti-infection performance and biocompatibility, and is widely used in biological sensors, spine, orthopedics and dental implants.

　　4. Wave transmitting material field: silicon nitride ceramics and their composite materials have excellent performances such as heat resistance, wave transmitting and bearing, and are used to manufacture high performance wave transmitting materials such as radome and antenna window.

　　Application Examples of Silicon Nitride Ceramics

　　5. Bearing: silicon nitride ceramic bearing ball has the characteristics of low density, wear resistance, high temperature resistance, corrosion resistance and self-lubrication, especially suitable for high-speed rotating bodies, such as high-speed bearing of high-speed machine tool spindle, aerospace engine bearing, etc.

　　6. Substrate: in the semiconductor field, silicon nitride substrate is widely used in packaging of high-performance power modules due to its high thermal conductivity, high bending strength and good thermal matching.

　　7. Implants: Silicon nitride ceramics are used in the biomedical field to manufacture spinal intervertebral fusion devices, orthopedic and dental implants, etc., with good biocompatibility and anti-infection performance.

　　Transparent material: silicon nitride ceramic and its composite materials are used to fabricate radome and antenna window, which have excellent transparent performance and high temperature resistance.

▼Technical Properties ofSi3N4 Silicon Nitride Ceramic