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Preparation method of alumina fiber reinforced ceramic matrix composite material
The invention discloses a preparation method of an alumina fiber reinforced ceramic-based composite material, belongs to the technical field of ceramic-based composite materials, and aims to solve the problems of low impregnation efficiency, too many impregnation times, high cost and the like when an existing sol-gel process is used for preparing the alumina fiber reinforced composite material. The impregnation process is optimized through rotary evaporation, sol and slurry matrixes which are low in viscosity and not prone to gelling are induced to be capable of automatically gelling, ceramic matrix particles can be reserved in pores of the fiber fabric to the maximum extent, the problems of external crusting and internal loosening caused by repeated impregnation are effectively solved by improving the single-time impregnation efficiency, and the fiber fabric is prepared. The interior of the composite material is more compact, the mechanical strength is higher, meanwhile, the use amount of the dipping matrix is greatly reduced, and the preparation cost is reduced.
本发明公开了一种氧化铝纤维增强陶瓷基复合材料的制备方法，属于陶瓷基复合材料技术领域，针对现有溶胶‑凝胶工艺制备氧化铝纤维增强复合材料时浸渍效率低、浸渍次数过多、成本较高等问题，本发明改进压力浸渍工艺，通过旋蒸优化浸渍过程，诱导本来粘度较低、不易凝胶的溶胶、浆料类基体能够自主凝胶，使陶瓷基体颗粒能够最大限度存留在纤维织物的孔隙之中，通过提升单次浸渍效率，有效防止了重复浸渍导致的外部结壳、内部疏松问题，使复合材料内部更为致密、力学强度更高，同时大幅减少浸渍基体的用量，降低了制备成本。
Preparation method of alumina fiber reinforced ceramic matrix composite material
The invention discloses a preparation method of an alumina fiber reinforced ceramic-based composite material, belongs to the technical field of ceramic-based composite materials, and aims to solve the problems of low impregnation efficiency, too many impregnation times, high cost and the like when an existing sol-gel process is used for preparing the alumina fiber reinforced composite material. The impregnation process is optimized through rotary evaporation, sol and slurry matrixes which are low in viscosity and not prone to gelling are induced to be capable of automatically gelling, ceramic matrix particles can be reserved in pores of the fiber fabric to the maximum extent, the problems of external crusting and internal loosening caused by repeated impregnation are effectively solved by improving the single-time impregnation efficiency, and the fiber fabric is prepared. The interior of the composite material is more compact, the mechanical strength is higher, meanwhile, the use amount of the dipping matrix is greatly reduced, and the preparation cost is reduced.
本发明公开了一种氧化铝纤维增强陶瓷基复合材料的制备方法，属于陶瓷基复合材料技术领域，针对现有溶胶‑凝胶工艺制备氧化铝纤维增强复合材料时浸渍效率低、浸渍次数过多、成本较高等问题，本发明改进压力浸渍工艺，通过旋蒸优化浸渍过程，诱导本来粘度较低、不易凝胶的溶胶、浆料类基体能够自主凝胶，使陶瓷基体颗粒能够最大限度存留在纤维织物的孔隙之中，通过提升单次浸渍效率，有效防止了重复浸渍导致的外部结壳、内部疏松问题，使复合材料内部更为致密、力学强度更高，同时大幅减少浸渍基体的用量，降低了制备成本。
Preparation method of alumina fiber reinforced ceramic matrix composite material
一种氧化铝纤维增强陶瓷基复合材料的制备方法
LIU YICHANG (author) / ZHONG WENLI (author) / MA XINZHOU (author) / ZHANG HONGCHAO (author) / ZHANG JIAN (author) / YU CHANGQING (author)
2024-03-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of alumina fiber reinforced ceramic matrix composite material
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