双面吸波连续氧化铝纤维增强氧化铝复合材料及制备方法
By using continuous alumina fiber-reinforced alumina composite material, combined with a frequency-selective surface layer and multiple metamaterial layers, a thin, high-temperature resistant double-sided absorbing material was prepared, solving the problem of infrared stealth and radar absorption under high-temperature environments in existing technologies, and achieving wide-band radar wave absorption and infrared stealth compatibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGSHA JINGYOU NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to provide a structural absorbing material that is long-lasting, high-temperature resistant, thin, and double-sided, failing to meet the material requirements of components such as aero engines and missile wings, especially the need for infrared stealth and radar absorption in high-temperature environments.
Using continuous alumina fiber reinforced alumina composite material as the matrix, combined with first and second frequency selective surface layers and multilayer metamaterial layers, discontinuous conductive layers and resistive metamaterial layers are prepared by screen printing and sintering processes to form a thin, high-temperature resistant double-sided absorbing material.
It achieves infrared stealth and broadband radar wave absorption for long-term use in high-temperature environments of 1000℃. The material thickness is ≤3.1mm, the radar wave absorption rate is >50% in the range of 7.2 GHz~18 GHz, and the infrared emissivity is ≤0.3, meeting the application requirements of high-temperature components such as aero engines and missile wings.
Smart Images
Figure CN122068290B_ABST