Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Oxidation-ablation-resistant heat-conducting ceramic-based composite material and preparation method thereof
The invention relates to an oxidation-ablation-resistant heat-conducting ceramic-based composite material and a preparation method thereof. According to the method, graphene fibers and PAN-based carbon fibers are woven into a preform, and CVI and PIP matrix densification processes are combined to prepare the composite material. The method comprises the following steps: weaving graphene fibers and PAN-based carbon fibers into a preform, depositing a pyrolytic carbon interface layer on the surface of the preform carbon fibers by adopting a CVI (Chemical Vapor Infiltration) process, carrying out high-temperature graphitization treatment on the preform carbon fibers, and carrying out multi-round ceramic matrix densification on the carbon-deposited preform subjected to high-temperature graphitization treatment by adopting a precursor infiltration pyrolysis (PIP) process. The prepared ceramic-based composite material has the characteristics of high thermal conductivity, good oxidation ablation resistance and the like, and can meet the requirements of aircraft leading edges and thermal structures on high thermal conductivity and oxidation ablation resistance of the ceramic-based composite material.
本发明涉及一种耐氧化烧蚀热疏导陶瓷基复合材料及其制备方法。所述方法采用石墨烯纤维与PAN基碳纤维编织成预制体，并结合CVI与PIP基体致密化工艺制备得到。所述方法首先采用石墨烯纤维与PAN基碳纤维编织成预制体，然后采用CVI工艺在预制体碳纤维表面沉积热解碳界面层，并对其进行高温石墨化处理，之后通过前驱体浸渍裂解(PIP)工艺对高温石墨化处理后的沉碳预制体进行多轮次陶瓷基体致密化。本发明制备得到的陶瓷基复合材料具有热导率高、耐氧化烧蚀性能好等特点，可满足飞行器前缘和热结构对于陶瓷基复合材料高导热和耐氧化烧蚀性能的需求。
Oxidation-ablation-resistant heat-conducting ceramic-based composite material and preparation method thereof
The invention relates to an oxidation-ablation-resistant heat-conducting ceramic-based composite material and a preparation method thereof. According to the method, graphene fibers and PAN-based carbon fibers are woven into a preform, and CVI and PIP matrix densification processes are combined to prepare the composite material. The method comprises the following steps: weaving graphene fibers and PAN-based carbon fibers into a preform, depositing a pyrolytic carbon interface layer on the surface of the preform carbon fibers by adopting a CVI (Chemical Vapor Infiltration) process, carrying out high-temperature graphitization treatment on the preform carbon fibers, and carrying out multi-round ceramic matrix densification on the carbon-deposited preform subjected to high-temperature graphitization treatment by adopting a precursor infiltration pyrolysis (PIP) process. The prepared ceramic-based composite material has the characteristics of high thermal conductivity, good oxidation ablation resistance and the like, and can meet the requirements of aircraft leading edges and thermal structures on high thermal conductivity and oxidation ablation resistance of the ceramic-based composite material.
本发明涉及一种耐氧化烧蚀热疏导陶瓷基复合材料及其制备方法。所述方法采用石墨烯纤维与PAN基碳纤维编织成预制体，并结合CVI与PIP基体致密化工艺制备得到。所述方法首先采用石墨烯纤维与PAN基碳纤维编织成预制体，然后采用CVI工艺在预制体碳纤维表面沉积热解碳界面层，并对其进行高温石墨化处理，之后通过前驱体浸渍裂解(PIP)工艺对高温石墨化处理后的沉碳预制体进行多轮次陶瓷基体致密化。本发明制备得到的陶瓷基复合材料具有热导率高、耐氧化烧蚀性能好等特点，可满足飞行器前缘和热结构对于陶瓷基复合材料高导热和耐氧化烧蚀性能的需求。
Oxidation-ablation-resistant heat-conducting ceramic-based composite material and preparation method thereof
一种耐氧化烧蚀热疏导陶瓷基复合材料及其制备方法
FENG SHIJIE (Autor:in) / ZHANG BAOPENG (Autor:in) / YANG LIANGWEI (Autor:in) / CHEN HAORAN (Autor:in) / LI XIAODONG (Autor:in) / LIU WEI (Autor:in) / YU XINMIN (Autor:in) / LIU JUNPENG (Autor:in) / SUN TONGCHEN (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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