Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of carbon/carbon composite material with high thermal conductivity and high strength
The invention discloses a high-thermal-conductivity and high-strength carbon/carbon composite material and a preparation method thereof, and relates to the technical field of carbon/carbon composite materials. The method comprises the following steps: placing a carbon fiber preform in a deposition furnace, vacuumizing, raising the temperature of the deposition furnace to 950-1250 DEG C, then introducing a carbon source gas and water vapor, introducing a carrier gas for dilution and protection, and stopping heating after depositing for 80-100 hours to obtain the carbon-based composite material, and carrying out graphitization treatment on the carbon-based composite material to obtain the high-thermal-conductivity and high-strength carbon/carbon composite material. According to the method, methane and water vapor are used as a mixed precursor, the carbon/carbon composite material which is uniform in density, compact and high-texture pyrolytic carbon serves as a matrix can be rapidly prepared within a large technological parameter range, and the method has far-reaching significance in the field of low-cost rapid preparation of the carbon/carbon composite material.
本发明公开了一种高导热高强度碳/碳复合材料及其制备方法，涉及碳/碳复合材料技术领域。所述方法包括将碳纤维预制体置于沉积炉中，抽真空后，将沉积炉温度升至950~1250℃，随后通入碳源气体和水蒸汽，并通入载气进行稀释和保护，沉积80~100 h后，停止加热，得到碳基复合材料；将碳基复合材料进行石墨化处理，得到高导热高强度的碳/碳复合材料。本发明以甲烷和水蒸汽为混合前驱体，可在较大的工艺参数范围内快速制备出密度均匀且致密，基体均为高织构热解碳的碳/碳复合材料，在碳/碳复合材料的低成本快速制备领域具有深远意义。
Preparation method of carbon/carbon composite material with high thermal conductivity and high strength
The invention discloses a high-thermal-conductivity and high-strength carbon/carbon composite material and a preparation method thereof, and relates to the technical field of carbon/carbon composite materials. The method comprises the following steps: placing a carbon fiber preform in a deposition furnace, vacuumizing, raising the temperature of the deposition furnace to 950-1250 DEG C, then introducing a carbon source gas and water vapor, introducing a carrier gas for dilution and protection, and stopping heating after depositing for 80-100 hours to obtain the carbon-based composite material, and carrying out graphitization treatment on the carbon-based composite material to obtain the high-thermal-conductivity and high-strength carbon/carbon composite material. According to the method, methane and water vapor are used as a mixed precursor, the carbon/carbon composite material which is uniform in density, compact and high-texture pyrolytic carbon serves as a matrix can be rapidly prepared within a large technological parameter range, and the method has far-reaching significance in the field of low-cost rapid preparation of the carbon/carbon composite material.
本发明公开了一种高导热高强度碳/碳复合材料及其制备方法，涉及碳/碳复合材料技术领域。所述方法包括将碳纤维预制体置于沉积炉中，抽真空后，将沉积炉温度升至950~1250℃，随后通入碳源气体和水蒸汽，并通入载气进行稀释和保护，沉积80~100 h后，停止加热，得到碳基复合材料；将碳基复合材料进行石墨化处理，得到高导热高强度的碳/碳复合材料。本发明以甲烷和水蒸汽为混合前驱体，可在较大的工艺参数范围内快速制备出密度均匀且致密，基体均为高织构热解碳的碳/碳复合材料，在碳/碳复合材料的低成本快速制备领域具有深远意义。
Preparation method of carbon/carbon composite material with high thermal conductivity and high strength
一种高导热高强度碳/碳复合材料的制备方法
ZHANG SHOUYANG (Autor:in) / ZHAO FEI (Autor:in) / SONG QIANG (Autor:in) / XIAO CAIXIANG (Autor:in) / SHEN QINGLIANG (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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High-strength and high-thermal-conductivity composite material and preparation method thereof
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