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Method for preparing fiber reinforced ceramic matrix composite material
The invention relates to a method for preparing a fiber reinforced ceramic matrix composite material. The method comprises the following steps: 1) pretreating fibers to remove epoxy resin on the surfaces of the fibers; 2) impregnating the pretreated fibers in the sol to obtain completely impregnated fibers; (3) winding the impregnated fibers on a core mold, and drying; 4) sequentially carrying out composite dipping, drying, composite dipping, drying and sintering on the dried sample piece; and 5) repeating the step 4) for multiple times to obtain the fiber reinforced ceramic matrix composite material. The ceramic-based composite material with high fiber volume content is prepared by combining a fiber winding process and a sol-gel method, so that the time can be saved, the mechanization can be improved, the production cost can be reduced, and the fiber volume content can be improved by changing the fiber type, the ceramic matrix, the particle size distribution and fiber orientation of sol for impregnation and a winding mode. The thermal mechanical property of the fiber reinforced ceramic matrix composite material is adjusted.
本发明涉及一种制备纤维增强陶瓷基复合材料的方法。该方法的步骤包括：1)进行纤维预处理，去除纤维表面的环氧树脂；2)将预处理后的纤维浸渍在溶胶中，得到完全浸渍的纤维；3)将浸渍后的纤维缠绕到芯模上，并进行干燥处理；4)将干燥处理后的样件依次进行复合浸渍、干燥、复合浸渍、干燥、烧结的步骤；5)重复步骤4)多次，得到纤维增强陶瓷基复合材料。本发明通过纤维缠绕工艺与溶胶凝胶法结合制备高纤维体积含量的陶瓷基复合材料，不仅可以节省时间，提高机械化，降低生产成本，还可以通过更改纤维类型、陶瓷基体、浸渍用溶胶的粒度分布和纤维取向、以及缠绕模式，来调整纤维增强陶瓷基复合材料的热机械性能。
Method for preparing fiber reinforced ceramic matrix composite material
The invention relates to a method for preparing a fiber reinforced ceramic matrix composite material. The method comprises the following steps: 1) pretreating fibers to remove epoxy resin on the surfaces of the fibers; 2) impregnating the pretreated fibers in the sol to obtain completely impregnated fibers; (3) winding the impregnated fibers on a core mold, and drying; 4) sequentially carrying out composite dipping, drying, composite dipping, drying and sintering on the dried sample piece; and 5) repeating the step 4) for multiple times to obtain the fiber reinforced ceramic matrix composite material. The ceramic-based composite material with high fiber volume content is prepared by combining a fiber winding process and a sol-gel method, so that the time can be saved, the mechanization can be improved, the production cost can be reduced, and the fiber volume content can be improved by changing the fiber type, the ceramic matrix, the particle size distribution and fiber orientation of sol for impregnation and a winding mode. The thermal mechanical property of the fiber reinforced ceramic matrix composite material is adjusted.
本发明涉及一种制备纤维增强陶瓷基复合材料的方法。该方法的步骤包括：1)进行纤维预处理，去除纤维表面的环氧树脂；2)将预处理后的纤维浸渍在溶胶中，得到完全浸渍的纤维；3)将浸渍后的纤维缠绕到芯模上，并进行干燥处理；4)将干燥处理后的样件依次进行复合浸渍、干燥、复合浸渍、干燥、烧结的步骤；5)重复步骤4)多次，得到纤维增强陶瓷基复合材料。本发明通过纤维缠绕工艺与溶胶凝胶法结合制备高纤维体积含量的陶瓷基复合材料，不仅可以节省时间，提高机械化，降低生产成本，还可以通过更改纤维类型、陶瓷基体、浸渍用溶胶的粒度分布和纤维取向、以及缠绕模式，来调整纤维增强陶瓷基复合材料的热机械性能。
Method for preparing fiber reinforced ceramic matrix composite material
一种制备纤维增强陶瓷基复合材料的方法
GAO WENBO (author) / CUI FENGDAN (author) / ZHANG JIAN (author) / LYU YI (author) / ZHAO YINGMIN (author) / ZHANG HAO (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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