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Wide-temperature-range structural wave-absorbing ceramic-based composite material and preparation method thereof
The invention relates to a wide-temperature-range structural wave-absorbing ceramic-based composite material with a PyC/BN inlaid nano interface and a preparation method of the wide-temperature-range structural wave-absorbing ceramic-based composite material. The preparation method of the composite material comprises the following steps: laminating and shaping multiple layers of fiber cloth, then depositing a PyC interface on the fiber cloth, introducing N < i > particles to etch the continuous PyC interface to form a discontinuous PyC interface, then depositing a BN interface to obtain a PyC/BN nano mosaic interface structure, and finally depositing a matrix to obtain the wide-temperature-range structural wave-absorbing ceramic matrix composite material. By regulating and controlling the PyC/BN nano mosaic interface structure, the conductivity loss can be reduced, the interface polarization loss can be enhanced, the changes of the two types of loss in the temperature rising process are mutually counteracted, the electromagnetic wave absorption performance of the ceramic matrix composite material in the temperature rising process is relatively stable, and therefore the electromagnetic wave absorption performance of the ceramic matrix composite material in the wide temperature range from the room temperature to 1000 DEG C is achieved. The ceramic-based composite material has the excellent effect that the electromagnetic wave absorption rate of the ceramic-based composite material at the X wave band is greater than 90%.
本发明涉及一种具有PyC/BN镶嵌纳米界面的宽温域结构型吸波陶瓷基复合材料及其制备方法。所述复合材料的制备方法包括：将多层纤维布叠层定型，然后在其上沉积PyC界面，并引入N i颗粒对连续PyC界面进行刻蚀形成不连续的PyC界面，再沉积BN界面得到PyC/BN纳米镶嵌界面结构，最后沉积基体获得宽温域结构型吸波陶瓷基复合材料。本发明通过调控PyC/BN纳米镶嵌界面结构，可降低电导损耗、增强界面极化损耗，升温过程中两种损耗的变化相互抵消，导致升温过程中陶瓷基复合材料的电磁波吸收性能相对稳定，从而实现室温～1000℃的宽温域内，陶瓷基复合材料在X波段的电磁波吸收均能大于90％的优良效果。
Wide-temperature-range structural wave-absorbing ceramic-based composite material and preparation method thereof
The invention relates to a wide-temperature-range structural wave-absorbing ceramic-based composite material with a PyC/BN inlaid nano interface and a preparation method of the wide-temperature-range structural wave-absorbing ceramic-based composite material. The preparation method of the composite material comprises the following steps: laminating and shaping multiple layers of fiber cloth, then depositing a PyC interface on the fiber cloth, introducing N < i > particles to etch the continuous PyC interface to form a discontinuous PyC interface, then depositing a BN interface to obtain a PyC/BN nano mosaic interface structure, and finally depositing a matrix to obtain the wide-temperature-range structural wave-absorbing ceramic matrix composite material. By regulating and controlling the PyC/BN nano mosaic interface structure, the conductivity loss can be reduced, the interface polarization loss can be enhanced, the changes of the two types of loss in the temperature rising process are mutually counteracted, the electromagnetic wave absorption performance of the ceramic matrix composite material in the temperature rising process is relatively stable, and therefore the electromagnetic wave absorption performance of the ceramic matrix composite material in the wide temperature range from the room temperature to 1000 DEG C is achieved. The ceramic-based composite material has the excellent effect that the electromagnetic wave absorption rate of the ceramic-based composite material at the X wave band is greater than 90%.
本发明涉及一种具有PyC/BN镶嵌纳米界面的宽温域结构型吸波陶瓷基复合材料及其制备方法。所述复合材料的制备方法包括：将多层纤维布叠层定型，然后在其上沉积PyC界面，并引入N i颗粒对连续PyC界面进行刻蚀形成不连续的PyC界面，再沉积BN界面得到PyC/BN纳米镶嵌界面结构，最后沉积基体获得宽温域结构型吸波陶瓷基复合材料。本发明通过调控PyC/BN纳米镶嵌界面结构，可降低电导损耗、增强界面极化损耗，升温过程中两种损耗的变化相互抵消，导致升温过程中陶瓷基复合材料的电磁波吸收性能相对稳定，从而实现室温～1000℃的宽温域内，陶瓷基复合材料在X波段的电磁波吸收均能大于90％的优良效果。
Wide-temperature-range structural wave-absorbing ceramic-based composite material and preparation method thereof
一种宽温域结构型吸波陶瓷基复合材料及其制备方法
YE FANG (Autor:in) / SONG QIANG (Autor:in) / LIANG JIE (Autor:in) / CAO YUCHEN (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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