In the aerospace field, silicon nitride ceramics have many applications, mainly reflected in the following aspects

Aircraft engine components: Silicon nitride ceramics have excellent high temperature resistance and wear resistance, and are often used in the manufacturing of high-temperature components for aircraft engines, such as turbine blades, turbine nozzles, etc. These ceramic components can withstand extreme high temperature and high pressure environments, improving engine performance and reliability.

Guidance system: In the guidance system of spacecraft, silicon nitride ceramics are often used to manufacture guidance components, such as missile guidance wings and spacecraft guidance rudders. These components have excellent mechanical performance and corrosion resistance, ensuring precise navigation and stable flight of the spacecraft.

Thermal insulation material: Silicon nitride ceramics have excellent thermal insulation performance, which can effectively prevent heat conduction. Therefore, it is often used as an insulation material for spacecraft, such as missile insulation coatings, spacecraft insulation layers, etc., to protect spacecraft from the impact of high temperature environments.

Spacecraft shell material: Silicon nitride ceramics are also used for spacecraft shells. Due to its excellent mechanical strength and chemical stability, it can be used as a structural material for spacecraft shells, providing good structural support and protection.

Aerospace electronic devices: Silicon nitride ceramics also have important applications in aerospace electronic equipment, such as manufacturing electronic modules and sensors in spacecraft. Its excellent insulation performance and chemical stability ensure the stable operation of electronic devices in extreme environments