Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The SiC/PyC nanowire reinforced Al2O3 high-temperature-resistant wave-absorbing ceramic is composed of an Al2O3 porous ceramic matrix, a graphene interface and SiC/PyC nanowires, the Al2O3 porous ceramic is adopted as the matrix, the graphene interface and the SiC/PyC nanowires are deposited on a framework of the Al2O3 porous ceramic to form a porous structure type wave-absorbing material, and the SiC/PyC nanowire reinforced Al2O3 high-temperature-resistant wave-absorbing ceramic has the characteristics of light weight and high strength, can stably serve in a high-temperature environment, and can be used as a high-temperature-resistant wave-absorbing material. The high-temperature wave-absorbing composite material has the advantages that high-temperature wave-absorbing characteristic application is achieved, electromagnetic parameters of the composite material are optimized due to introduction of the graphene interface and the SiC/PyC nanowires, good impedance matching and attenuation coefficients can be obtained, and accordingly excellent wave-absorbing performance is obtained. Besides, Al2O3 porous ceramic is used for providing a porous structure, a graphene interface and SiC/PyC nanowires are introduced through a chemical vapor deposition method, the interface bonding force is high, the chemical purity is high, the preparation process is good in repeatability, and a new thought can be provided for large-scale production of the three-dimensional structure composite wave-absorbing material.
本发明公开了一种SiC/PyC纳米线增强Al2O3耐高温吸波陶瓷，由Al2O3多孔陶瓷基体、石墨烯界面及SiC/PyC纳米线构成，采用Al2O3多孔陶瓷为基体，通过在其骨架沉积石墨烯界面及SiC/PyC纳米线形成多孔结构型吸波材料，具有轻质高强的特点，能够在高温环境下稳定服役，实现高温吸波的特性应用，且石墨烯界面及SiC/PyC纳米线的引入，优化了复合材料的电磁参数，能够获得较好的阻抗匹配和衰减系数，从而获得优异的吸波性能。另外，使用Al2O3多孔陶瓷提供多孔结构，通过化学气相沉积法引入石墨烯界面及SiC/PyC纳米线，界面结合力强，化学纯度高，且制备工艺重复性较好，可为三维结构复合吸波材料的大规模生产提供新思路。
The SiC/PyC nanowire reinforced Al2O3 high-temperature-resistant wave-absorbing ceramic is composed of an Al2O3 porous ceramic matrix, a graphene interface and SiC/PyC nanowires, the Al2O3 porous ceramic is adopted as the matrix, the graphene interface and the SiC/PyC nanowires are deposited on a framework of the Al2O3 porous ceramic to form a porous structure type wave-absorbing material, and the SiC/PyC nanowire reinforced Al2O3 high-temperature-resistant wave-absorbing ceramic has the characteristics of light weight and high strength, can stably serve in a high-temperature environment, and can be used as a high-temperature-resistant wave-absorbing material. The high-temperature wave-absorbing composite material has the advantages that high-temperature wave-absorbing characteristic application is achieved, electromagnetic parameters of the composite material are optimized due to introduction of the graphene interface and the SiC/PyC nanowires, good impedance matching and attenuation coefficients can be obtained, and accordingly excellent wave-absorbing performance is obtained. Besides, Al2O3 porous ceramic is used for providing a porous structure, a graphene interface and SiC/PyC nanowires are introduced through a chemical vapor deposition method, the interface bonding force is high, the chemical purity is high, the preparation process is good in repeatability, and a new thought can be provided for large-scale production of the three-dimensional structure composite wave-absorbing material.
本发明公开了一种SiC/PyC纳米线增强Al2O3耐高温吸波陶瓷，由Al2O3多孔陶瓷基体、石墨烯界面及SiC/PyC纳米线构成，采用Al2O3多孔陶瓷为基体，通过在其骨架沉积石墨烯界面及SiC/PyC纳米线形成多孔结构型吸波材料，具有轻质高强的特点，能够在高温环境下稳定服役，实现高温吸波的特性应用，且石墨烯界面及SiC/PyC纳米线的引入，优化了复合材料的电磁参数，能够获得较好的阻抗匹配和衰减系数，从而获得优异的吸波性能。另外，使用Al2O3多孔陶瓷提供多孔结构，通过化学气相沉积法引入石墨烯界面及SiC/PyC纳米线，界面结合力强，化学纯度高，且制备工艺重复性较好，可为三维结构复合吸波材料的大规模生产提供新思路。
SiC/PyC nanowire reinforced Al2O3 high-temperature-resistant wave-absorbing ceramic and preparation method thereof
一种SiC/PyC纳米线增强Al2O3耐高温吸波陶瓷及其制备方法
WANG YUN (Autor:in)
18.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
High-temperature-resistant foamed ceramic wave-absorbing material and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024