Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide ceramic composite material and preparation method thereof
The invention relates to the technical field of functional materials, and discloses a silicon carbide ceramic composite material and a preparation method thereof, and the preparation method comprises the following steps: S1, placing melamine foam which is subjected to ultrasonic cleaning, drying and ultraviolet sterilization in a tubular furnace, heating to 650 DEG C at 5-10 DEG C in an inert gas atmosphere of 50-90 SCCM, and preserving heat for 3 hours to obtain a carbon foam matrix; and S2, placing the carbon foam matrix obtained in the step S1 in a constant temperature area of a tubular furnace, vacuumizing, heating to 1000-1400 DEG C at a heating rate of 4-8 DEG C/min, sequentially introducing Ar, H2 and CH3SiCl3 into the tubular furnace, then carrying out heat preservation for 10-12 hours, cooling to room temperature at a rate of 4-6 DEG C/min, taking out an obtained silicon carbide porous ceramic blank, and drying to obtain the silicon carbide porous ceramic. The problems that some uneven surfaces exist on the surface of an aluminum-based composite material prepared through a traditional method, the binding force with a base body is not high, more materials are exposed in the oxidation environment, and the oxidation resistance is poor are solved.
本发明涉及功能性材料技术领域，且公开了一种碳化硅陶瓷复合材料其制备方法，包括以下步骤：步骤S1：将超声清洗烘干后用紫外线杀菌的三聚氰胺泡棉放置于管式炉中，在50‑90SCCM的惰性气体气氛中以5‑10℃加热到650℃后保温3h得到碳泡棉基体；步骤S2：将步骤S1得到碳泡棉基体的放置于管式炉的恒温区，抽真空后4‑8℃/min的升温速率加热到1000‑1400°C，将Ar、H2，CH3SiCl3、依次通入管式炉子，然后保温10‑12h，以4‑6℃/min的速率降至室温，取出得到的碳化硅多孔陶瓷胚体，解决传统方法制备的铝基复合材料表面存在一些不平整的表面，与基体的结合力不强，使材料更多地暴露在氧化环境中，抗氧化性能较差的问题。
Silicon carbide ceramic composite material and preparation method thereof
The invention relates to the technical field of functional materials, and discloses a silicon carbide ceramic composite material and a preparation method thereof, and the preparation method comprises the following steps: S1, placing melamine foam which is subjected to ultrasonic cleaning, drying and ultraviolet sterilization in a tubular furnace, heating to 650 DEG C at 5-10 DEG C in an inert gas atmosphere of 50-90 SCCM, and preserving heat for 3 hours to obtain a carbon foam matrix; and S2, placing the carbon foam matrix obtained in the step S1 in a constant temperature area of a tubular furnace, vacuumizing, heating to 1000-1400 DEG C at a heating rate of 4-8 DEG C/min, sequentially introducing Ar, H2 and CH3SiCl3 into the tubular furnace, then carrying out heat preservation for 10-12 hours, cooling to room temperature at a rate of 4-6 DEG C/min, taking out an obtained silicon carbide porous ceramic blank, and drying to obtain the silicon carbide porous ceramic. The problems that some uneven surfaces exist on the surface of an aluminum-based composite material prepared through a traditional method, the binding force with a base body is not high, more materials are exposed in the oxidation environment, and the oxidation resistance is poor are solved.
本发明涉及功能性材料技术领域，且公开了一种碳化硅陶瓷复合材料其制备方法，包括以下步骤：步骤S1：将超声清洗烘干后用紫外线杀菌的三聚氰胺泡棉放置于管式炉中，在50‑90SCCM的惰性气体气氛中以5‑10℃加热到650℃后保温3h得到碳泡棉基体；步骤S2：将步骤S1得到碳泡棉基体的放置于管式炉的恒温区，抽真空后4‑8℃/min的升温速率加热到1000‑1400°C，将Ar、H2，CH3SiCl3、依次通入管式炉子，然后保温10‑12h，以4‑6℃/min的速率降至室温，取出得到的碳化硅多孔陶瓷胚体，解决传统方法制备的铝基复合材料表面存在一些不平整的表面，与基体的结合力不强，使材料更多地暴露在氧化环境中，抗氧化性能较差的问题。
Silicon carbide ceramic composite material and preparation method thereof
一种碳化硅陶瓷复合材料及其制备方法
ZHANG YI (Autor:in) / MA XUEHAN (Autor:in) / CHEN YULONG (Autor:in) / GAO XIANGYUN (Autor:in) / LI XIAOPING (Autor:in) / ZHANG WEN (Autor:in) / CHENG LAIFEI (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
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