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Ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance and preparation method thereof
The invention relates to an ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance and a preparation method thereof. The preparation method of the ultra-high-temperature ceramic-based composite material comprises the steps: (1) selecting carbon fibers and weaving the carbon fibers into a carbon fiber preform, wherein thethermal conductivity of the carbon fibers is larger than 40 W/m.K; (2) depositing an interface layer on the surfaces of the carbon fibers in the carbon fiber preform by adopting a chemical vapor infiltration method; and (3) introducing a carbon source and a ceramic phase into the carbon fiber preform through a sol-gel method, a slurry impregnation method and a precursor impregnation and pyrolysismethod, and carrying out densifying by cooperatively using a reaction infiltration method so as to obtain the ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance.
本发明涉及一种高导热、强结合、耐烧蚀的超高温陶瓷基复合材料及其制备方法，所述超高温陶瓷基复合材料的制备方法包括：（1）选取碳纤维编织成碳纤维预制体，所述碳纤维的热导率＞40W/m·K；（2）采用化学气相渗透法在碳纤维预制体中碳纤维表面沉积界面层；（3）通过溶胶凝胶法、浆料浸渍法、前驱体浸渍裂解法向碳纤维预制体中引入碳源和陶瓷相，再结合反应熔渗法实现致密化，得到所述高导热、强结合、耐烧蚀的超高温陶瓷基复合材料。
Ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance and preparation method thereof
The invention relates to an ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance and a preparation method thereof. The preparation method of the ultra-high-temperature ceramic-based composite material comprises the steps: (1) selecting carbon fibers and weaving the carbon fibers into a carbon fiber preform, wherein thethermal conductivity of the carbon fibers is larger than 40 W/m.K; (2) depositing an interface layer on the surfaces of the carbon fibers in the carbon fiber preform by adopting a chemical vapor infiltration method; and (3) introducing a carbon source and a ceramic phase into the carbon fiber preform through a sol-gel method, a slurry impregnation method and a precursor impregnation and pyrolysismethod, and carrying out densifying by cooperatively using a reaction infiltration method so as to obtain the ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance.
本发明涉及一种高导热、强结合、耐烧蚀的超高温陶瓷基复合材料及其制备方法，所述超高温陶瓷基复合材料的制备方法包括：（1）选取碳纤维编织成碳纤维预制体，所述碳纤维的热导率＞40W/m·K；（2）采用化学气相渗透法在碳纤维预制体中碳纤维表面沉积界面层；（3）通过溶胶凝胶法、浆料浸渍法、前驱体浸渍裂解法向碳纤维预制体中引入碳源和陶瓷相，再结合反应熔渗法实现致密化，得到所述高导热、强结合、耐烧蚀的超高温陶瓷基复合材料。
Ultra-high-temperature ceramic-based composite material with high thermal conductivity, strong bonding force and ablation resistance and preparation method thereof
一种高导热、强结合、耐烧蚀的超高温陶瓷基复合材料及其制备方法
NI DEWEI (author) / CHEN BOWEN (author) / DONG SHAOMING (author) / CHEN XIAOWU (author) / HE PING (author) / WANG ZHEN (author) / DING YUSHENG (author) / ZHANG XIANGYU (author)
2020-07-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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