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Carbon fiber reinforced ceramic composite material and preparation method thereof
The invention relates to a carbon fiber reinforced ceramic composite material and a preparation method thereof.According to the method, carbon fibers, non-dimensional cloth and a net blank are connected into a whole through layer-by-layer needling weaving, the carbon fibers extend to the surface from the interior of a prefabricated body, and after ceramic is filled subsequently, the surface of obtained carbon fiber reinforced ceramic has higher binding force with a base body; the thermal shock resistance of the surface can be effectively improved. And the binding force is improved, and the thickness of the surface of the carbon fiber reinforced ceramic can reach a millimeter level, so that the carbon fiber reinforced ceramic has higher heat capacity and lasting ablation resistance. Meanwhile, the axial direction of each layer of carbon fibers is the same as the ablation direction, a better heat conduction path is provided, heat generated in the ablation process can be conducted away, the temperature difference between the surface and a base body is reduced, and therefore generation of surface cracks is restrained.
本申请涉及碳纤维增强陶瓷复合材料及其制备方法，该方法通过逐层针刺编制将碳纤维与无维布、网胎连为一体，且碳纤维从预制体内部延伸至表面，后续填充陶瓷后，得到的碳纤维增强陶瓷表面与基体具有更强的结合力，可有效提高表面的抗热震性能。且由于结合力提高，碳纤维增强陶瓷表面的厚度可以达到毫米级，从而具有更大的热容量和持久的耐烧蚀能力。同时，每层碳纤维的轴向与烧蚀方向相同，提供了更好的热传导路径，可将烧蚀过程中产生的热量导走，减少表面与基体之间的温度差异，从而抑制表面裂纹的产生。
Carbon fiber reinforced ceramic composite material and preparation method thereof
The invention relates to a carbon fiber reinforced ceramic composite material and a preparation method thereof.According to the method, carbon fibers, non-dimensional cloth and a net blank are connected into a whole through layer-by-layer needling weaving, the carbon fibers extend to the surface from the interior of a prefabricated body, and after ceramic is filled subsequently, the surface of obtained carbon fiber reinforced ceramic has higher binding force with a base body; the thermal shock resistance of the surface can be effectively improved. And the binding force is improved, and the thickness of the surface of the carbon fiber reinforced ceramic can reach a millimeter level, so that the carbon fiber reinforced ceramic has higher heat capacity and lasting ablation resistance. Meanwhile, the axial direction of each layer of carbon fibers is the same as the ablation direction, a better heat conduction path is provided, heat generated in the ablation process can be conducted away, the temperature difference between the surface and a base body is reduced, and therefore generation of surface cracks is restrained.
本申请涉及碳纤维增强陶瓷复合材料及其制备方法，该方法通过逐层针刺编制将碳纤维与无维布、网胎连为一体，且碳纤维从预制体内部延伸至表面，后续填充陶瓷后，得到的碳纤维增强陶瓷表面与基体具有更强的结合力，可有效提高表面的抗热震性能。且由于结合力提高，碳纤维增强陶瓷表面的厚度可以达到毫米级，从而具有更大的热容量和持久的耐烧蚀能力。同时，每层碳纤维的轴向与烧蚀方向相同，提供了更好的热传导路径，可将烧蚀过程中产生的热量导走，减少表面与基体之间的温度差异，从而抑制表面裂纹的产生。
Carbon fiber reinforced ceramic composite material and preparation method thereof
碳纤维增强陶瓷复合材料及其制备方法
SHI ANHONG (author) / HUO SHUHAI (author) / CAO LIUXU (author) / LIU CHUNXUAN (author) / JIANG ZHAORU (author) / QIU ZHENYU (author) / WU YUN (author) / CHEN HAOYU (author) / JIANG XIAOHAN (author) / WANG CHANG (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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