Wide-temperature-range reusable high-thermal-conductivity composite material and preparation method thereof: Fid-Bau Portal

Wide-temperature-range reusable high-thermal-conductivity composite material and preparation method thereof

ZHANG BAOPENG / ZUO HONGJUN / HAO NAIRONG / LIU WEI / SUN TONGCHEN / PEI YUCHEN

The invention relates to a wide-temperature-range reusable high-thermal-conductivity composite material and a preparation method thereof. A prefabricated body adopted by the wide-temperature-range reusable high-thermal-conductivity composite material is a high-thermal-conductivity carbon fiber prefabricated body, the fiber surface of the prefabricated body is provided with an anti-oxidation alternate interface layer, and the anti-oxidation alternate interface layer is formed by n silicon carbide interface layers and n boron nitride nanosheet interface layers in an alternate mode; the wide-temperature-range reusable high-thermal-conductivity composite material is provided with a wide-temperature-range antioxidant ceramic matrix, and the wide-temperature-range antioxidant ceramic matrix comprises a SiC matrix, a ZrC matrix and a SiCBN matrix; the wide-temperature-range reusable high-thermal-conductivity composite material is provided with an anti-oxidation alternating ceramic coating, and the anti-oxidation alternating ceramic coating is formed by m silicon carbide coatings and m boron nitride nanosheet coatings in an alternating mode. The wide-temperature-range reusable high-thermal-conductivity composite material disclosed by the invention has the characteristics of high thermal conductivity, high matrix compactness and excellent wide-temperature-range reusability.

本发明涉及一种宽温域可重复使用高导热复合材料及其制备方法。所述宽温域可重复使用高导热复合材料采用的预制体为高导热碳纤维预制体，所述预制体的纤维表面具有抗氧化交替界面层，所述抗氧化交替界面层由n层碳化硅界面层和n层氮化硼纳米片界面层交替形成；所述宽温域可重复使用高导热复合材料具有宽温域抗氧化陶瓷基体，所述宽温域抗氧化陶瓷基体包含SiC基体、ZrC基体和SiCBN基体；所述宽温域可重复使用高导热复合材料具有抗氧化交替陶瓷涂层，所述抗氧化交替陶瓷涂层由m层碳化硅涂层和m层氮化硼纳米片涂层交替形成。本发明中的宽温域可重复使用高导热复合材料具有高导热性能、基体致密性高、宽温域可重复使用优异的特点。

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