Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nitride fiber reinforced silicon nitride composite material and preparation method and application thereof
The invention provides a nitride fiber reinforced silicon nitride composite material and a preparation method and application thereof, and belongs to the technical field of composite materials, the composite material comprises a fiber reinforcement and a matrix, the fiber reinforcement is a nitride fiber preform, and the matrix contains silicon nitride; the fiber surface of the nitride fiber preform is coated with a nitride interface layer containing boron nitride and silicon nitride; boron nitride and silicon nitride in the nitride interface layer are in a semi-sintered state. Boron nitride and silicon nitride particles in the nitride interface layer of the nitride fiber reinforced silicon nitride composite material provided by the invention are attached to the surface of the fiber in a semi-sintered state, so that the self-state of the nitride fiber cannot be damaged, and meanwhile, microcracks on the surface of the fiber can be effectively repaired; the surface state and self-strength of the fiber preform are improved, and the comprehensive performance of the composite material is improved.
本发明提供了一种氮化物纤维增强氮化硅复合材料及其制备方法和应用，属于复合材料技术领域，该复合材料包括纤维增强体和基体，纤维增强体为氮化物纤维预制体，基体包含氮化硅；氮化物纤维预制体的纤维表面包覆有包含氮化硼和氮化硅的氮化物界面层；氮化物界面层中氮化硼和氮化硅为半烧结状态。本发明提供的氮化物纤维增强氮化硅复合材料的氮化物界面层中氮化硼和氮化硅颗粒以半烧结状态的附着在纤维表面，不会对氮化物纤维的自身状态造成损伤，同时可以有效的修补纤维表面微裂纹，提高纤维预制体的表面状态和自身强度，提升复合材料的综合性能。
Nitride fiber reinforced silicon nitride composite material and preparation method and application thereof
The invention provides a nitride fiber reinforced silicon nitride composite material and a preparation method and application thereof, and belongs to the technical field of composite materials, the composite material comprises a fiber reinforcement and a matrix, the fiber reinforcement is a nitride fiber preform, and the matrix contains silicon nitride; the fiber surface of the nitride fiber preform is coated with a nitride interface layer containing boron nitride and silicon nitride; boron nitride and silicon nitride in the nitride interface layer are in a semi-sintered state. Boron nitride and silicon nitride particles in the nitride interface layer of the nitride fiber reinforced silicon nitride composite material provided by the invention are attached to the surface of the fiber in a semi-sintered state, so that the self-state of the nitride fiber cannot be damaged, and meanwhile, microcracks on the surface of the fiber can be effectively repaired; the surface state and self-strength of the fiber preform are improved, and the comprehensive performance of the composite material is improved.
本发明提供了一种氮化物纤维增强氮化硅复合材料及其制备方法和应用，属于复合材料技术领域，该复合材料包括纤维增强体和基体，纤维增强体为氮化物纤维预制体，基体包含氮化硅；氮化物纤维预制体的纤维表面包覆有包含氮化硼和氮化硅的氮化物界面层；氮化物界面层中氮化硼和氮化硅为半烧结状态。本发明提供的氮化物纤维增强氮化硅复合材料的氮化物界面层中氮化硼和氮化硅颗粒以半烧结状态的附着在纤维表面，不会对氮化物纤维的自身状态造成损伤，同时可以有效的修补纤维表面微裂纹，提高纤维预制体的表面状态和自身强度，提升复合材料的综合性能。
Nitride fiber reinforced silicon nitride composite material and preparation method and application thereof
一种氮化物纤维增强氮化硅复合材料及其制备方法和应用
HAN YAO (Autor:in) / ZHANG BINGQING (Autor:in) / REN ZHIHENG (Autor:in) / QIN GAOLEI (Autor:in) / YANG JING (Autor:in) / ZHANG JIAN (Autor:in) / YU CHANGQING (Autor:in)
30.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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