The application of ceramic fiber paper in aerospace field mainly focuses on heat insulation, fire prevention, insulation and so on. The following are its specific applications:

I. Thermal insulation materials

Thermal insulation of engine: Ceramic fiber paper has excellent thermal insulation performance, which can effectively block heat transfer in high temperature environment, reduce the temperature in engine compartment, and improve the efficiency and safety of engine.

Thermal protection system of spacecraft: When the spacecraft re-enters the atmosphere, its surface will generate extremely high temperature due to friction with air. Ceramic fiber paper can be used to make thermal protection tiles, absorb and dissipate heat, and protect spacecraft structure.

II. Fireproof materials

Fire-proof and heat-insulating gasket: Ceramic fiber paper can be made into fire-proof and heat-insulating gasket, which can be used in high-temperature parts such as aero-engines and rocket engines to prevent high-temperature flame and heat from damaging surrounding equipment.

Fireproof bulkheads and partitions: Ceramic fiber paper can be used to make fireproof bulkheads and partitions to prevent the fire from spreading inside the aircraft and protect the safety of passengers and equipment.

III. Insulating materials

Insulation of electronic equipment: Ceramic fiber paper has good electrical insulation performance, which can be used for insulation of electronic components in aerospace equipment to prevent short circuit and electric leakage and ensure the reliable operation of the equipment.

Insulation of high-temperature cable: In high-temperature environment, ceramic fiber paper can be used to wrap cables, providing double protection of heat insulation and insulation.

IV. Structural reinforcement materials

Reinforcement of composite materials: Ceramic fiber paper can be used as the reinforcement matrix of composite materials and compounded with other materials (such as aerogels) to further improve the thermal insulation performance and mechanical strength of the materials.

Lightweight structural material: Ceramic fiber paper is light in weight and high in strength, which can be used to manufacture lightweight structural parts in aerospace field and reduce the overall weight of aircraft.

V. Other applications

Sealing material: ceramic fiber paper can be used for sealing in high temperature environment, such as engine flange, pipeline connection and other parts to prevent high temperature gas leakage.

Infrared stealth material: Some ceramic fiber papers have low infrared emissivity, which can be used in infrared stealth design of aircraft to reduce the probability of being discovered by infrared detection equipment.

To sum up, ceramic fiber paper has been widely used in the aerospace field because of its excellent thermal insulation, fire prevention, insulation and light weight, which provides an important guarantee for the safe operation and performance improvement of aircraft.