Chemical inertness and corrosion resistance of silicon nitride- Zhejiang Shangguijuli Special Material Technology Co., Ltd.

In-depth discussion of chemical properties:

The chemical inertness and corrosion resistance of silicon nitride are the key to its long-term stable operation in harsh environments. It not only has good corrosion resistance to common acids and bases, but also resists corrosion from many other chemical media, such as oxidants and organic solvents. This chemical stability makes silicon nitride widely used in pipelines, reactors and corrosion-resistant equipment in the chemical industry, and can safely handle corrosive substances and chemicals under high-temperature reaction conditions.

In addition, silicon nitride has little reaction to water vapor and oxygen, which makes it perform well in high-temperature oxidizing environments. In oil refining, metallurgy and other high-temperature processes, silicon nitride's oxidation resistance ensures its long-term stable use without losing structural strength or performance due to oxidation.

Detailed introduction to physical properties:

In terms of physical properties, silicon nitride has many excellent properties, making it one of the preferred materials for various industrial applications.

High strength and hardness: Silicon nitride material has higher strength and hardness than many traditional ceramics and can resist mechanical shock and stress in high-pressure environments. This makes it widely used in high-temperature furnace tubes, mechanical parts and wear-resistant parts.

Good thermal conductivity: Although silicon nitride is an insulating material, its thermal conductivity is higher than many metal alloys and other ceramic materials. This good thermal conductivity makes silicon nitride more effective in thermal management of high-temperature equipment, which can reduce thermal stress and improve process stability.

Low thermal expansion coefficient: The low thermal expansion coefficient of silicon nitride means that its dimensional change is very small when the temperature changes. This stable dimensional property is particularly important for precision manufacturing and applications that require high dimensional stability, such as precision furnace tubes and optical components in semiconductor manufacturing.

Optical transparency: Silicon nitride has good transparency in the infrared band, which makes it important for infrared sensors, optical windows and other optoelectronic applications.

Wide application in application fields:

Due to its comprehensive excellent chemical and physical properties, silicon nitride is widely used in many high-tech fields.

Semiconductor manufacturing: used as components of furnace tubes, protective pipes and other high-temperature equipment to ensure a stable production environment and process control.

Chemical and petroleum industries: used for corrosion-resistant pipes, reactors and high-temperature resistant equipment to handle various corrosive media and high-temperature reaction conditions.

Metal processing and casting: as a material for sprue tubes, pouring tubes and other high-temperature and wear-resistant parts, improving the stability and efficiency of the casting process.

Optoelectronics: used to manufacture infrared optical components, sensors and optical windows, taking advantage of its excellent optical transparency and thermal properties.