A fiber reinforced polymer derived ceramic-based wave-absorbing composite material and a preparation method thereof
By depositing an interface layer on the surface of the fiber preform and using an impregnation and pyrolysis process to protect the matrix, the problem of fiber-ceramic matrix composite at high temperatures was solved, and a high-performance fiber-reinforced ceramic matrix composite material was prepared. This composite material has excellent dielectric properties and electromagnetic wave absorption capabilities and is suitable for high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SCI-TECH UNIV
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively combine high-melting-point, high-strength fibers with ceramic matrices under high-temperature conditions. Traditional preparation methods are energy-intensive and prone to fiber damage, failing to meet the material stability and electromagnetic wave absorption requirements under high temperature and pressure.
An interface layer and a protective matrix were deposited on the surface of the fiber preform using the impregnation pyrolysis (PIP) process. A SiC or Si3N4 interface layer was deposited on the fiber surface using low-pressure chemical vapor deposition technology. Combined with polycarbosilane and polysilazane solutions, a fiber-reinforced ceramic matrix composite material with excellent dielectric properties was prepared.
A high-temperature stable fiber-reinforced ceramic matrix composite material was prepared under low pressure, which improved dielectric properties and electromagnetic wave absorption capacity, reduced energy consumption, and enhanced the toughness and fracture resistance of the material, making it suitable for industrial applications.
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