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Silicon nitride ceramics
Silicon nitride ceramics are gaining popularity due to their diverse applications and high performance properties. From energy and the environment to the automotive industry, these advanced ceramics play a vital role in enhancing performance, durability and efficiency. In this blog, we will explore the various applications of silicon nitride ceramics and delve into the unique characteristics that set them apart in the market.
One of the main applications of silicon nitride ceramics is the polysilicon reaction reduction furnace. These furnaces require insulating rings, heat shields and insulating bushings that can withstand high temperatures and provide a long service life. Silicon nitride ceramics have proven to be an excellent choice for these components due to their high temperature resistance and durability. By using silicon nitride ceramics, not only can the replacement frequency be reduced, but also cost can be saved, making it an optimal solution for energy and environment related applications.
Another area where silicon nitride ceramics shine is the aluminum foundry industry. The denseness, high temperature strength, thermal shock resistance and corrosion resistance of these ceramics make them highly sought after in various equipment components in this industry. The company has developed a series of high-performance silicon nitride ceramic products tailored for aluminum casting. Silicon nitride risers, heater protection tubes, shafts, rotors and thermocouple protection tubes are some examples of how these ceramics can be used to improve the efficiency and reliability of aluminum casting processes.
Hybrid ceramic bearings, especially those with silicon nitride balls, are also gaining popularity in the market. These bearings have many advantages such as high speed, light weight, self-lubrication, maintenance-free operation and electrical insulation. These properties make them particularly suitable for spindle bearings used in machine tools. The use of silicon nitride ceramics in hybrid bearings not only improves overall performance, but also helps improve energy efficiency and extend product life.
In the automotive industry, silicon nitride ceramics are used in various components. Automotive diesel engines, ceramic brake discs, engine PCU power control systems, and ceramic substrates are some examples of these ceramic applications. Silicon nitride ceramics have a unique combination of properties that make them ideal for these applications. They have high thermal conductivity, with a strength ranging from 600 to 800MPa, a fracture toughness of 6.0-8.0Mpa m1/2, and a thermal conductivity of 80-100/[(mK)], which can cope with the harsh conditions of the automotive environment. In addition, their at least 300 The current carrying capacity and thermal resistance of ≤0.5 (0.5 m Cu)(°C/W) further contribute to its suitability for automotive application.
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Silicon nitride ceramic guide rollers, ring, and tubes
Application Features ►High strength: Bending strength is about twice that of AL2O3 and ALN substrates. ►High thermal conductivity: It is more than 3 times higher than AL2O3 substrate. ►Light and thin: its thickness can reach 1/2 of AlN substrate ►Excellent thermal shock resistance: its thermal expansion coefficient is close to that of silicon. Item Unit Al2O3 AIN Si3N4 Density g/cm2 3.75 3.3 3.22 Thickness mm 0.3175~1.0 0.4~2.5 0.238~0.635 Surface rough... -
Silicon Nitride Ceramic Bearing and balls
Silicon nitride (Si3N4) high thermal conductivity substrate Features ►High strength: Bending strength is about twice that of AL2O3 and ALN substrates. ►High thermal conductivity: It is more than 3 times higher than AL2O3 substrate. ►Light and thin: its thickness can reach 1/2 of AlN substrate ►Excellent thermal shock resistance: its thermal expansion coefficient is close to that of silicon. Item Unit Al2O3 AIN Si3N4 Density g/cm2 3.75 3.3 3.22 Thickness mm 0.31... -
Silicon Nitride Ceramic blocks, tiles, plates, etc
Application of silicon nitride guide roller in casting industry
Compared with metal guide roller and alloy guide roller, silicon nitride guide roller has more advantages in high temperature resistance, high hardness, high toughness, impact resistance and oxidation resistance; At the same time, the silicon nitride guide roller is oil-free, self-lubricating, low density, light weight, and its service life is more than ten times that of the alloy guide roller.
Silicon nitride (Si3N4) high thermal conductivity substrate
High thermal conductivity silicon nitride ceramic substrate
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Silicon nitride ceramic high thermal conductivity substrate and parts
Electronic substrate The substrate of the main circuit board is widely used in the electronic manufacturing industry.
Silicon nitride electronic substrate is mainly used for the insulation and thermal conductivity of silicon nitride. Due to the large amount of calculation and heat generation, the requirements for insulation and heat dissipation of VLSI and electronic chips are getting higher and higher. Silicon nitride electronic substrate has solved this problem perfectly.
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Customized silicon nitride ceramics
Silicon nitride ball valves Silicon nitride ball valves are widely used in photovoltaic, coal chemical, electric power, metallurgy, petroleum, petrochemical and other industries. The silicon nitride ball valve with silicon nitride ball and valve seat as the core has the characteristics of erosion resistance, corrosion resistance, high and low temperature resistance. At the same time, the silicon nitride ball valve has self-lubricating property, low friction coefficient in the process of valve... -
Ceramic air flow protective cover and tube
The silicon nitride gas hole protective cover The silicon nitride gas hole protective cover is applied to the corrosive gas channel to slow down the gas flow. Silicon nitride ceramic pore protective cover has very good corrosion resistance. At the same time, it has high hardness, high and low temperature resistance, and can be used stably in high temperature and corrosive impurity gas. Because it will not be corroded, it will not bring its own impurities into the product like the metal protec...
