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Nitride ceramic-based wave-transparent composite material and preparation method thereof
The invention belongs to the technical field of wave-transparent ceramics, and particularly relates to a nitride ceramic-based wave-transparent composite material and a preparation method thereof. The ceramic material with the fiber monolithic structure is successfully prepared by taking silicon nitride as a cell body material and boron nitride as an interface layer material, the structural units of the ceramic material are silicon nitride, and flaky hexagonal boron nitride is arranged between the structural units, so that the defect that the dielectric constant of the existing silicon nitride ceramic material is high is overcome, and the ceramic material has high dielectric constant. Boron nitride is introduced into silicon nitride as an interface layer material, and the overall porous structure of the material is combined, so that the dielectric constant of the material can be effectively reduced, the wave-transparent performance of nitride ceramic is improved, and the bending strength is regulated and controlled.
本发明属于透波陶瓷技术领域，具体涉及一种氮化物陶瓷基透波复合材料及其制备方法。本发明以氮化硅为胞体材料，以氮化硼为界面层材料，成功制备出具有纤维独石结构的陶瓷材料，该陶瓷材料的结构单元为氮化硅，结构单元与结构单元之间是片状的六方氮化硼，克服了现有氮化硅陶瓷材料介电常数高的缺点，本发明氮化硼作为界面层材料引入到氮化硅，结合材料整体的多孔结构，可以有效降低材料的介电常数，改善了氮化物陶瓷的透波性能，并实现弯曲强度的调控。
Nitride ceramic-based wave-transparent composite material and preparation method thereof
The invention belongs to the technical field of wave-transparent ceramics, and particularly relates to a nitride ceramic-based wave-transparent composite material and a preparation method thereof. The ceramic material with the fiber monolithic structure is successfully prepared by taking silicon nitride as a cell body material and boron nitride as an interface layer material, the structural units of the ceramic material are silicon nitride, and flaky hexagonal boron nitride is arranged between the structural units, so that the defect that the dielectric constant of the existing silicon nitride ceramic material is high is overcome, and the ceramic material has high dielectric constant. Boron nitride is introduced into silicon nitride as an interface layer material, and the overall porous structure of the material is combined, so that the dielectric constant of the material can be effectively reduced, the wave-transparent performance of nitride ceramic is improved, and the bending strength is regulated and controlled.
本发明属于透波陶瓷技术领域，具体涉及一种氮化物陶瓷基透波复合材料及其制备方法。本发明以氮化硅为胞体材料，以氮化硼为界面层材料，成功制备出具有纤维独石结构的陶瓷材料，该陶瓷材料的结构单元为氮化硅，结构单元与结构单元之间是片状的六方氮化硼，克服了现有氮化硅陶瓷材料介电常数高的缺点，本发明氮化硼作为界面层材料引入到氮化硅，结合材料整体的多孔结构，可以有效降低材料的介电常数，改善了氮化物陶瓷的透波性能，并实现弯曲强度的调控。
Nitride ceramic-based wave-transparent composite material and preparation method thereof
一种氮化物陶瓷基透波复合材料及其制备方法
LI BIN (author) / ZHENG LIYA (author) / TU AO (author) / TIAN ZHILIN (author)
2022-07-29
Patent
Electronic Resource
Chinese
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