Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon fiber reinforced silicon-boron-carbon-nitrogen-based ceramic composite material and preparation method thereof
The invention provides a carbon fiber reinforced silicon-boron-carbon-nitrogen-based ceramic composite material and a preparation method thereof, and relates to the technical field of ceramic composite materials. The composite material provided by the invention comprises a silicon-boron-carbon-nitrogen ceramic matrix and a carbon fiber preform compounded in the silicon-boron-carbon-nitrogen ceramic matrix, the silicon-boron-carbon-nitrogen ceramic matrix is doped with silicon carbide powder, and a silicon carbide coating is deposited on the fiber surface of the carbon fiber preform. According to the invention, the silicon carbide powder is doped into the silicon-boron-carbon-nitrogen ceramic matrix, so that the proportion of the silicon element in the matrix is increased, and a thicker and denser silicon dioxide protection layer can be generated when the outer-layer matrix is in contact with oxygen; the carbon fiber exposed in oxygen is protected by depositing the silicon carbide coating on the surface of the carbon fiber, so that the overall performance of the material can be maintained in a high-temperature environment, and the oxidation resistance and high-temperature resistance of the material are effectively improved. Therefore, the composite material provided by the invention has excellent oxidation resistance and high temperature resistance.
本发明提供了一种碳纤维强化硅硼碳氮基陶瓷复合材料及其制备方法，涉及陶瓷复合材料技术领域。本发明提供的复合材料包括硅硼碳氮陶瓷基体和复合在所述硅硼碳氮陶瓷基体中的碳纤维预制体；所述硅硼碳氮陶瓷基体掺杂有碳化硅粉末，所述碳纤维预制体的纤维表面沉积有碳化硅涂层。本发明通过碳化硅粉末对硅硼碳氮陶瓷基体进行掺杂，提高基体中硅元素的占比，使得外层基体在与氧气接触中可生成更厚、更稠密的二氧化硅保护层；通过在碳纤维表面沉积碳化硅涂层对暴露于氧气中的碳纤维进行保护，进而在高温环境下能够保持住材料的整体性能，有效提高材料的抗氧化性能和耐高温性能。因此，本发明提供的复合材料具有优异的抗氧化性和耐高温性能。
Carbon fiber reinforced silicon-boron-carbon-nitrogen-based ceramic composite material and preparation method thereof
The invention provides a carbon fiber reinforced silicon-boron-carbon-nitrogen-based ceramic composite material and a preparation method thereof, and relates to the technical field of ceramic composite materials. The composite material provided by the invention comprises a silicon-boron-carbon-nitrogen ceramic matrix and a carbon fiber preform compounded in the silicon-boron-carbon-nitrogen ceramic matrix, the silicon-boron-carbon-nitrogen ceramic matrix is doped with silicon carbide powder, and a silicon carbide coating is deposited on the fiber surface of the carbon fiber preform. According to the invention, the silicon carbide powder is doped into the silicon-boron-carbon-nitrogen ceramic matrix, so that the proportion of the silicon element in the matrix is increased, and a thicker and denser silicon dioxide protection layer can be generated when the outer-layer matrix is in contact with oxygen; the carbon fiber exposed in oxygen is protected by depositing the silicon carbide coating on the surface of the carbon fiber, so that the overall performance of the material can be maintained in a high-temperature environment, and the oxidation resistance and high-temperature resistance of the material are effectively improved. Therefore, the composite material provided by the invention has excellent oxidation resistance and high temperature resistance.
本发明提供了一种碳纤维强化硅硼碳氮基陶瓷复合材料及其制备方法，涉及陶瓷复合材料技术领域。本发明提供的复合材料包括硅硼碳氮陶瓷基体和复合在所述硅硼碳氮陶瓷基体中的碳纤维预制体；所述硅硼碳氮陶瓷基体掺杂有碳化硅粉末，所述碳纤维预制体的纤维表面沉积有碳化硅涂层。本发明通过碳化硅粉末对硅硼碳氮陶瓷基体进行掺杂，提高基体中硅元素的占比，使得外层基体在与氧气接触中可生成更厚、更稠密的二氧化硅保护层；通过在碳纤维表面沉积碳化硅涂层对暴露于氧气中的碳纤维进行保护，进而在高温环境下能够保持住材料的整体性能，有效提高材料的抗氧化性能和耐高温性能。因此，本发明提供的复合材料具有优异的抗氧化性和耐高温性能。
Carbon fiber reinforced silicon-boron-carbon-nitrogen-based ceramic composite material and preparation method thereof
一种碳纤维强化硅硼碳氮基陶瓷复合材料及其制备方法
HU YANZHI (Autor:in) / LI AIJUN (Autor:in) / WANG XUCHAO (Autor:in) / YU MAOLAN (Autor:in) / KANG ZHIWEI (Autor:in) / JIA LINTAO (Autor:in) / XU HAIMING (Autor:in)
23.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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